./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.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/mix057_power.oepc_pso.oepc_rmo.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/mix057_power.oepc_pso.oepc_rmo.oepc.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix057_power.oepc_pso.oepc_rmo.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 19:12:07,108 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-21 19:12:07,174 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-21 19:12:07,179 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-21 19:12:07,180 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-21 19:12:07,211 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-21 19:12:07,212 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-21 19:12:07,212 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-21 19:12:07,213 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-21 19:12:07,216 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-21 19:12:07,216 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-21 19:12:07,217 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-21 19:12:07,217 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-21 19:12:07,218 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-21 19:12:07,218 INFO L153 SettingsManager]: * Use SBE=true [2024-06-21 19:12:07,219 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-21 19:12:07,219 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-21 19:12:07,219 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-21 19:12:07,219 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-21 19:12:07,219 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-21 19:12:07,220 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-21 19:12:07,220 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-21 19:12:07,220 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-21 19:12:07,220 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-21 19:12:07,221 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-21 19:12:07,221 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-21 19:12:07,221 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-21 19:12:07,221 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-21 19:12:07,226 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-21 19:12:07,226 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-21 19:12:07,227 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-21 19:12:07,227 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-21 19:12:07,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-21 19:12:07,228 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-21 19:12:07,228 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-21 19:12:07,228 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-21 19:12:07,228 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-21 19:12:07,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-21 19:12:07,228 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-21 19:12:07,229 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-21 19:12:07,229 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-21 19:12:07,229 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-21 19:12:07,229 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-21 19:12:07,229 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-21 19:12:07,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-21 19:12:07,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-21 19:12:07,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-21 19:12:07,446 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-21 19:12:07,447 INFO L274 PluginConnector]: CDTParser initialized [2024-06-21 19:12:07,447 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.oepc.i [2024-06-21 19:12:08,474 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-21 19:12:08,678 INFO L384 CDTParser]: Found 1 translation units. [2024-06-21 19:12:08,678 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.oepc.i [2024-06-21 19:12:08,696 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbf85920f/6a3938891a8a490392a8fa288f5c056b/FLAG409b9eed7 [2024-06-21 19:12:08,706 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbf85920f/6a3938891a8a490392a8fa288f5c056b [2024-06-21 19:12:08,707 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-21 19:12:08,708 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-21 19:12:08,708 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix057_power.oepc_pso.oepc_rmo.oepc.yml/witness.yml [2024-06-21 19:12:08,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-21 19:12:08,771 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-21 19:12:08,771 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-21 19:12:08,772 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-21 19:12:08,775 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-21 19:12:08,775 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 07:12:08" (1/2) ... [2024-06-21 19:12:08,776 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b774648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 07:12:08, skipping insertion in model container [2024-06-21 19:12:08,776 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 07:12:08" (1/2) ... [2024-06-21 19:12:08,777 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2db0a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 07:12:08, skipping insertion in model container [2024-06-21 19:12:08,778 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 07:12:08" (2/2) ... [2024-06-21 19:12:08,778 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b774648 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 07:12:08, skipping insertion in model container [2024-06-21 19:12:08,778 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 07:12:08" (2/2) ... [2024-06-21 19:12:08,778 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-21 19:12:08,794 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-21 19:12:08,794 INFO L97 edCorrectnessWitness]: Location invariant before [L862-L862] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )a$mem_tmp >= 0LL) && (0LL - (long long )a$flush_delayed) + (long long )a$r_buff0_thd1 >= 0LL) && (0LL - (long long )a$flush_delayed) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$flush_delayed) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$r_buff0_thd1 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd1) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd4) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd4) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd4) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd4) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )a$w_buff0_used >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$w_buff0_used >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff0_used >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )a$w_buff0_used >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$w_buff0_used >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )a$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )a$w_buff0_used >= 0LL) && (long long )a + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a + (long long )a$w_buff0 >= 0LL) && (long long )a + (long long )a$w_buff0_used >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a$flush_delayed + (long long )a$w_buff0 >= 0LL) && (long long )a$flush_delayed + (long long )a$w_buff0_used >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a$mem_tmp + (long long )a$w_buff0 >= 0LL) && (long long )a$mem_tmp + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff0_thd4 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd1 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd4 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff1_used >= 0LL) && (long long )a$r_buff0_thd1 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )x >= 0LL) && (long long )a$r_buff0_thd1 + (long long )y >= 0LL) && (long long )a$r_buff0_thd1 + (long long )z >= 0LL) && (long long )a$r_buff0_thd1 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd4 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd4 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd1 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd1 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd3 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd3 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd4 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd4 + (long long )a$w_buff0_used >= 0LL) && (long long )a$read_delayed + (long long )a$w_buff0 >= 0LL) && (long long )a$read_delayed + (long long )a$w_buff0_used >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff0_used >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$w_buff0 + (long long )x >= 0LL) && (long long )a$w_buff0 + (long long )y >= 0LL) && (long long )a$w_buff0 + (long long )z >= 0LL) && (long long )a$w_buff0 + (long long )weak$$choice0 >= 0LL) && (long long )a$w_buff0 + (long long )weak$$choice2 >= 0LL) && (long long )a$w_buff0_used + (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0_used + (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0_used + (long long )main$tmp_guard1 >= 0LL) && (long long )a$w_buff0_used + (long long )x >= 0LL) && (long long )a$w_buff0_used + (long long )y >= 0LL) && (long long )a$w_buff0_used + (long long )z >= 0LL) && (long long )a$w_buff0_used + (long long )weak$$choice0 >= 0LL) && (long long )a$w_buff0_used + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )a$w_buff0_used) - (long long )a$w_buff1 >= 0LL) && (long long )__unbuffered_p3_EAX - (long long )a$mem_tmp >= 0LL) && (long long )a - (long long )a$mem_tmp >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff0_thd4 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd1 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd4 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff1_used >= 0LL) && (long long )a$r_buff1_thd1 - (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff1_thd1 - (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff0_used >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0_used - (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff1 - (long long )a$w_buff1_used >= 0LL) [2024-06-21 19:12:08,795 INFO L97 edCorrectnessWitness]: Location invariant before [L860-L860] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )a$mem_tmp >= 0LL) && (0LL - (long long )a$flush_delayed) + (long long )a$r_buff0_thd1 >= 0LL) && (0LL - (long long )a$flush_delayed) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$flush_delayed) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$r_buff0_thd1 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd1) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd4) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd4) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd4) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd4) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )a$w_buff0_used >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$w_buff0_used >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff0_used >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )a$w_buff0_used >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$w_buff0_used >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )a$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )a$w_buff0_used >= 0LL) && (long long )a + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a + (long long )a$w_buff0 >= 0LL) && (long long )a + (long long )a$w_buff0_used >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a$flush_delayed + (long long )a$w_buff0 >= 0LL) && (long long )a$flush_delayed + (long long )a$w_buff0_used >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a$mem_tmp + (long long )a$w_buff0 >= 0LL) && (long long )a$mem_tmp + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff0_thd4 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd1 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd4 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff1_used >= 0LL) && (long long )a$r_buff0_thd1 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )x >= 0LL) && (long long )a$r_buff0_thd1 + (long long )y >= 0LL) && (long long )a$r_buff0_thd1 + (long long )z >= 0LL) && (long long )a$r_buff0_thd1 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd4 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd4 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd1 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd1 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd3 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd3 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd4 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd4 + (long long )a$w_buff0_used >= 0LL) && (long long )a$read_delayed + (long long )a$w_buff0 >= 0LL) && (long long )a$read_delayed + (long long )a$w_buff0_used >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff0_used >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$w_buff0 + (long long )x >= 0LL) && (long long )a$w_buff0 + (long long )y >= 0LL) && (long long )a$w_buff0 + (long long )z >= 0LL) && (long long )a$w_buff0 + (long long )weak$$choice0 >= 0LL) && (long long )a$w_buff0 + (long long )weak$$choice2 >= 0LL) && (long long )a$w_buff0_used + (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0_used + (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0_used + (long long )main$tmp_guard1 >= 0LL) && (long long )a$w_buff0_used + (long long )x >= 0LL) && (long long )a$w_buff0_used + (long long )y >= 0LL) && (long long )a$w_buff0_used + (long long )z >= 0LL) && (long long )a$w_buff0_used + (long long )weak$$choice0 >= 0LL) && (long long )a$w_buff0_used + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )a$w_buff0_used) - (long long )a$w_buff1 >= 0LL) && (long long )__unbuffered_p3_EAX - (long long )a$mem_tmp >= 0LL) && (long long )a - (long long )a$mem_tmp >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff0_thd4 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd1 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd4 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff1_used >= 0LL) && (long long )a$r_buff1_thd1 - (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff1_thd1 - (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff0_used >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0_used - (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff1 - (long long )a$w_buff1_used >= 0LL) [2024-06-21 19:12:08,795 INFO L97 edCorrectnessWitness]: Location invariant before [L865-L865] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )a$mem_tmp >= 0LL) && (0LL - (long long )a$flush_delayed) + (long long )a$r_buff0_thd1 >= 0LL) && (0LL - (long long )a$flush_delayed) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$flush_delayed) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$r_buff0_thd1 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd1) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd4) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd4) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd4) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd4) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )a$w_buff0_used >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$w_buff0_used >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff0_used >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )a$w_buff0_used >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$w_buff0_used >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )a$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )a$w_buff0_used >= 0LL) && (long long )a + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a + (long long )a$w_buff0 >= 0LL) && (long long )a + (long long )a$w_buff0_used >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a$flush_delayed + (long long )a$w_buff0 >= 0LL) && (long long )a$flush_delayed + (long long )a$w_buff0_used >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a$mem_tmp + (long long )a$w_buff0 >= 0LL) && (long long )a$mem_tmp + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff0_thd4 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd1 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd4 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff1_used >= 0LL) && (long long )a$r_buff0_thd1 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )x >= 0LL) && (long long )a$r_buff0_thd1 + (long long )y >= 0LL) && (long long )a$r_buff0_thd1 + (long long )z >= 0LL) && (long long )a$r_buff0_thd1 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd4 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd4 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd1 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd1 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd3 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd3 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd4 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd4 + (long long )a$w_buff0_used >= 0LL) && (long long )a$read_delayed + (long long )a$w_buff0 >= 0LL) && (long long )a$read_delayed + (long long )a$w_buff0_used >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff0_used >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$w_buff0 + (long long )x >= 0LL) && (long long )a$w_buff0 + (long long )y >= 0LL) && (long long )a$w_buff0 + (long long )z >= 0LL) && (long long )a$w_buff0 + (long long )weak$$choice0 >= 0LL) && (long long )a$w_buff0 + (long long )weak$$choice2 >= 0LL) && (long long )a$w_buff0_used + (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0_used + (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0_used + (long long )main$tmp_guard1 >= 0LL) && (long long )a$w_buff0_used + (long long )x >= 0LL) && (long long )a$w_buff0_used + (long long )y >= 0LL) && (long long )a$w_buff0_used + (long long )z >= 0LL) && (long long )a$w_buff0_used + (long long )weak$$choice0 >= 0LL) && (long long )a$w_buff0_used + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )a$w_buff0_used) - (long long )a$w_buff1 >= 0LL) && (long long )__unbuffered_p3_EAX - (long long )a$mem_tmp >= 0LL) && (long long )a - (long long )a$mem_tmp >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff0_thd4 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd1 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd4 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff1_used >= 0LL) && (long long )a$r_buff1_thd1 - (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff1_thd1 - (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff0_used >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0_used - (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff1 - (long long )a$w_buff1_used >= 0LL) [2024-06-21 19:12:08,795 INFO L97 edCorrectnessWitness]: Location invariant before [L864-L864] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )a$mem_tmp >= 0LL) && (0LL - (long long )a$flush_delayed) + (long long )a$r_buff0_thd1 >= 0LL) && (0LL - (long long )a$flush_delayed) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$flush_delayed) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$r_buff0_thd1 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd1) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff0_thd4) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd4) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$r_buff1_thd4) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd4) + (long long )a$w_buff0_used >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )a$w_buff0_used >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$w_buff0_used >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff0_used >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )a$w_buff0_used >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$w_buff0_used >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )a$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EAX + (long long )a$w_buff0_used >= 0LL) && (long long )a + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a + (long long )a$w_buff0 >= 0LL) && (long long )a + (long long )a$w_buff0_used >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a$flush_delayed + (long long )a$w_buff0 >= 0LL) && (long long )a$flush_delayed + (long long )a$w_buff0_used >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a$mem_tmp + (long long )a$w_buff0 >= 0LL) && (long long )a$mem_tmp + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$r_buff0_thd1 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff0_thd4 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd1 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$r_buff1_thd4 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )a$w_buff1_used >= 0LL) && (long long )a$r_buff0_thd1 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )x >= 0LL) && (long long )a$r_buff0_thd1 + (long long )y >= 0LL) && (long long )a$r_buff0_thd1 + (long long )z >= 0LL) && (long long )a$r_buff0_thd1 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff0_thd1 + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd4 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd4 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd1 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd1 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd3 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd3 + (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff1_thd4 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd4 + (long long )a$w_buff0_used >= 0LL) && (long long )a$read_delayed + (long long )a$w_buff0 >= 0LL) && (long long )a$read_delayed + (long long )a$w_buff0_used >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff0_used >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$w_buff0 + (long long )x >= 0LL) && (long long )a$w_buff0 + (long long )y >= 0LL) && (long long )a$w_buff0 + (long long )z >= 0LL) && (long long )a$w_buff0 + (long long )weak$$choice0 >= 0LL) && (long long )a$w_buff0 + (long long )weak$$choice2 >= 0LL) && (long long )a$w_buff0_used + (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0_used + (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0_used + (long long )main$tmp_guard1 >= 0LL) && (long long )a$w_buff0_used + (long long )x >= 0LL) && (long long )a$w_buff0_used + (long long )y >= 0LL) && (long long )a$w_buff0_used + (long long )z >= 0LL) && (long long )a$w_buff0_used + (long long )weak$$choice0 >= 0LL) && (long long )a$w_buff0_used + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )a$w_buff0_used) - (long long )a$w_buff1 >= 0LL) && (long long )__unbuffered_p3_EAX - (long long )a$mem_tmp >= 0LL) && (long long )a - (long long )a$mem_tmp >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff0_thd4 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd1 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$r_buff1_thd4 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff0_used >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff0_thd1 - (long long )a$w_buff1_used >= 0LL) && (long long )a$r_buff1_thd1 - (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff1_thd1 - (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff0_used >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff0_used - (long long )a$w_buff1_used >= 0LL) && (long long )a$w_buff1 - (long long )a$w_buff1_used >= 0LL) [2024-06-21 19:12:08,796 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-21 19:12:08,796 INFO L106 edCorrectnessWitness]: ghost_update [L858-L858] multithreaded = 1; [2024-06-21 19:12:08,834 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-21 19:12:09,135 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-21 19:12:09,148 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-21 19:12:09,334 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-21 19:12:09,361 INFO L206 MainTranslator]: Completed translation [2024-06-21 19:12:09,361 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 07:12:09 WrapperNode [2024-06-21 19:12:09,361 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-21 19:12:09,362 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-21 19:12:09,362 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-21 19:12:09,362 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-21 19:12:09,368 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 07:12:09" (1/1) ... [2024-06-21 19:12:09,385 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 07:12:09" (1/1) ... [2024-06-21 19:12:09,482 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 136 [2024-06-21 19:12:09,483 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-21 19:12:09,483 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-21 19:12:09,483 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-21 19:12:09,483 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-21 19:12:09,492 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 07:12:09" (1/1) ... [2024-06-21 19:12:09,492 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 07:12:09" (1/1) ... [2024-06-21 19:12:09,516 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 07:12:09" (1/1) ... [2024-06-21 19:12:09,545 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 19:12:09,545 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 07:12:09" (1/1) ... [2024-06-21 19:12:09,545 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 07:12:09" (1/1) ... [2024-06-21 19:12:09,569 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 07:12:09" (1/1) ... [2024-06-21 19:12:09,571 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 07:12:09" (1/1) ... [2024-06-21 19:12:09,584 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 07:12:09" (1/1) ... [2024-06-21 19:12:09,587 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 07:12:09" (1/1) ... [2024-06-21 19:12:09,601 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-21 19:12:09,602 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-21 19:12:09,602 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-21 19:12:09,603 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-21 19:12:09,603 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 07:12:09" (1/1) ... [2024-06-21 19:12:09,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-21 19:12:09,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-21 19:12:09,654 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 19:12:09,674 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 19:12:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-21 19:12:09,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-21 19:12:09,691 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-21 19:12:09,691 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-21 19:12:09,691 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-21 19:12:09,692 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-21 19:12:09,692 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-21 19:12:09,692 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-21 19:12:09,692 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-06-21 19:12:09,692 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-06-21 19:12:09,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-21 19:12:09,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-21 19:12:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-21 19:12:09,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-21 19:12:09,696 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 19:12:09,796 INFO L244 CfgBuilder]: Building ICFG [2024-06-21 19:12:09,797 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-21 19:12:10,372 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-21 19:12:10,372 INFO L293 CfgBuilder]: Performing block encoding [2024-06-21 19:12:10,541 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-21 19:12:10,541 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-21 19:12:10,542 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 07:12:10 BoogieIcfgContainer [2024-06-21 19:12:10,542 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-21 19:12:10,544 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-21 19:12:10,544 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-21 19:12:10,547 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-21 19:12:10,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.06 07:12:08" (1/4) ... [2024-06-21 19:12:10,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439f2099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 07:12:10, skipping insertion in model container [2024-06-21 19:12:10,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 07:12:08" (2/4) ... [2024-06-21 19:12:10,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439f2099 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 21.06 07:12:10, skipping insertion in model container [2024-06-21 19:12:10,549 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 07:12:09" (3/4) ... [2024-06-21 19:12:10,550 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439f2099 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 21.06 07:12:10, skipping insertion in model container [2024-06-21 19:12:10,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 07:12:10" (4/4) ... [2024-06-21 19:12:10,551 INFO L112 eAbstractionObserver]: Analyzing ICFG mix057_power.oepc_pso.oepc_rmo.oepc.i [2024-06-21 19:12:10,567 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-21 19:12:10,567 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-06-21 19:12:10,567 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-21 19:12:10,623 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-21 19:12:10,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 51 transitions, 118 flow [2024-06-21 19:12:10,728 INFO L124 PetriNetUnfolderBase]: 0/47 cut-off events. [2024-06-21 19:12:10,728 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-21 19:12:10,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 47 events. 0/47 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-06-21 19:12:10,730 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 51 transitions, 118 flow [2024-06-21 19:12:10,732 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 41 transitions, 94 flow [2024-06-21 19:12:10,739 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-21 19:12:10,749 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;@692df11d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-21 19:12:10,750 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-06-21 19:12:10,752 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-21 19:12:10,753 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-21 19:12:10,753 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-21 19:12:10,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:12:10,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-21 19:12:10,754 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:12:10,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:12:10,760 INFO L85 PathProgramCache]: Analyzing trace with hash 392035071, now seen corresponding path program 1 times [2024-06-21 19:12:10,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:12:10,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111800577] [2024-06-21 19:12:10,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:12:10,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:12:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:12:12,195 INFO 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 19:12:12,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:12:12,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111800577] [2024-06-21 19:12:12,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111800577] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:12:12,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:12:12,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-21 19:12:12,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621239192] [2024-06-21 19:12:12,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:12:12,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-21 19:12:12,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:12:12,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-21 19:12:12,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-21 19:12:12,276 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 51 [2024-06-21 19:12:12,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 41 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 19:12:12,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:12:12,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 51 [2024-06-21 19:12:12,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:12:14,548 INFO L124 PetriNetUnfolderBase]: 14075/18997 cut-off events. [2024-06-21 19:12:14,548 INFO L125 PetriNetUnfolderBase]: For 256/256 co-relation queries the response was YES. [2024-06-21 19:12:14,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38513 conditions, 18997 events. 14075/18997 cut-off events. For 256/256 co-relation queries the response was YES. Maximal size of possible extension queue 627. Compared 97401 event pairs, 11070 based on Foata normal form. 1/18739 useless extension candidates. Maximal degree in co-relation 38500. Up to 18981 conditions per place. [2024-06-21 19:12:14,650 INFO L140 encePairwiseOnDemand]: 42/51 looper letters, 45 selfloop transitions, 5 changer transitions 0/55 dead transitions. [2024-06-21 19:12:14,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 55 transitions, 231 flow [2024-06-21 19:12:14,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-21 19:12:14,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-21 19:12:14,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 90 transitions. [2024-06-21 19:12:14,660 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5882352941176471 [2024-06-21 19:12:14,661 INFO L175 Difference]: Start difference. First operand has 54 places, 41 transitions, 94 flow. Second operand 3 states and 90 transitions. [2024-06-21 19:12:14,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 55 transitions, 231 flow [2024-06-21 19:12:14,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 55 transitions, 224 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-21 19:12:14,666 INFO L231 Difference]: Finished difference. Result has 53 places, 45 transitions, 129 flow [2024-06-21 19:12:14,667 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=53, PETRI_TRANSITIONS=45} [2024-06-21 19:12:14,669 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -1 predicate places. [2024-06-21 19:12:14,669 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 45 transitions, 129 flow [2024-06-21 19:12:14,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 19:12:14,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:12:14,670 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:12:14,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-21 19:12:14,670 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:12:14,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:12:14,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1211389410, now seen corresponding path program 1 times [2024-06-21 19:12:14,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:12:14,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317097857] [2024-06-21 19:12:14,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:12:14,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:12:14,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:12:15,745 INFO 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 19:12:15,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:12:15,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317097857] [2024-06-21 19:12:15,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317097857] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:12:15,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:12:15,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-21 19:12:15,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802007873] [2024-06-21 19:12:15,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:12:15,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-21 19:12:15,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:12:15,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-21 19:12:15,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-21 19:12:15,795 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 51 [2024-06-21 19:12:15,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 45 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 19:12:15,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:12:15,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 51 [2024-06-21 19:12:15,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:12:17,861 INFO L124 PetriNetUnfolderBase]: 14065/18983 cut-off events. [2024-06-21 19:12:17,862 INFO L125 PetriNetUnfolderBase]: For 3370/3370 co-relation queries the response was YES. [2024-06-21 19:12:17,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43116 conditions, 18983 events. 14065/18983 cut-off events. For 3370/3370 co-relation queries the response was YES. Maximal size of possible extension queue 627. Compared 97481 event pairs, 10115 based on Foata normal form. 4/18983 useless extension candidates. Maximal degree in co-relation 43104. Up to 18946 conditions per place. [2024-06-21 19:12:17,947 INFO L140 encePairwiseOnDemand]: 41/51 looper letters, 55 selfloop transitions, 9 changer transitions 0/69 dead transitions. [2024-06-21 19:12:17,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 69 transitions, 323 flow [2024-06-21 19:12:17,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-21 19:12:17,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-21 19:12:17,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2024-06-21 19:12:17,949 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5686274509803921 [2024-06-21 19:12:17,949 INFO L175 Difference]: Start difference. First operand has 53 places, 45 transitions, 129 flow. Second operand 4 states and 116 transitions. [2024-06-21 19:12:17,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 69 transitions, 323 flow [2024-06-21 19:12:17,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 69 transitions, 318 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-21 19:12:17,951 INFO L231 Difference]: Finished difference. Result has 56 places, 49 transitions, 177 flow [2024-06-21 19:12:17,951 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=177, PETRI_PLACES=56, PETRI_TRANSITIONS=49} [2024-06-21 19:12:17,952 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 2 predicate places. [2024-06-21 19:12:17,952 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 49 transitions, 177 flow [2024-06-21 19:12:17,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 19:12:17,953 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:12:17,953 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:12:17,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-21 19:12:17,953 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:12:17,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:12:17,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1101634934, now seen corresponding path program 1 times [2024-06-21 19:12:17,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:12:17,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481533070] [2024-06-21 19:12:17,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:12:17,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:12:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:12:19,053 INFO 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 19:12:19,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:12:19,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481533070] [2024-06-21 19:12:19,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481533070] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:12:19,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:12:19,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-21 19:12:19,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930480496] [2024-06-21 19:12:19,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:12:19,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-21 19:12:19,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:12:19,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-21 19:12:19,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-21 19:12:19,132 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 51 [2024-06-21 19:12:19,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 49 transitions, 177 flow. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 19:12:19,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:12:19,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 51 [2024-06-21 19:12:19,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:12:21,106 INFO L124 PetriNetUnfolderBase]: 14083/19010 cut-off events. [2024-06-21 19:12:21,106 INFO L125 PetriNetUnfolderBase]: For 9698/9698 co-relation queries the response was YES. [2024-06-21 19:12:21,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47791 conditions, 19010 events. 14083/19010 cut-off events. For 9698/9698 co-relation queries the response was YES. Maximal size of possible extension queue 627. Compared 97466 event pairs, 8523 based on Foata normal form. 7/19011 useless extension candidates. Maximal degree in co-relation 47777. Up to 18867 conditions per place. [2024-06-21 19:12:21,196 INFO L140 encePairwiseOnDemand]: 39/51 looper letters, 73 selfloop transitions, 21 changer transitions 0/99 dead transitions. [2024-06-21 19:12:21,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 99 transitions, 539 flow [2024-06-21 19:12:21,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-21 19:12:21,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-21 19:12:21,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 152 transitions. [2024-06-21 19:12:21,198 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.596078431372549 [2024-06-21 19:12:21,198 INFO L175 Difference]: Start difference. First operand has 56 places, 49 transitions, 177 flow. Second operand 5 states and 152 transitions. [2024-06-21 19:12:21,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 99 transitions, 539 flow [2024-06-21 19:12:21,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 99 transitions, 520 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-06-21 19:12:21,202 INFO L231 Difference]: Finished difference. Result has 61 places, 63 transitions, 308 flow [2024-06-21 19:12:21,202 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=308, PETRI_PLACES=61, PETRI_TRANSITIONS=63} [2024-06-21 19:12:21,203 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 7 predicate places. [2024-06-21 19:12:21,203 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 63 transitions, 308 flow [2024-06-21 19:12:21,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 19:12:21,204 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:12:21,204 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:12:21,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-21 19:12:21,204 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:12:21,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:12:21,205 INFO L85 PathProgramCache]: Analyzing trace with hash 345058197, now seen corresponding path program 1 times [2024-06-21 19:12:21,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:12:21,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768420641] [2024-06-21 19:12:21,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:12:21,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:12:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:12:22,581 INFO 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 19:12:22,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:12:22,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768420641] [2024-06-21 19:12:22,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768420641] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:12:22,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:12:22,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 19:12:22,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409917595] [2024-06-21 19:12:22,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:12:22,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 19:12:22,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:12:22,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 19:12:22,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-21 19:12:22,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 51 [2024-06-21 19:12:22,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 63 transitions, 308 flow. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 19:12:22,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:12:22,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 51 [2024-06-21 19:12:22,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:12:25,193 INFO L124 PetriNetUnfolderBase]: 14101/19035 cut-off events. [2024-06-21 19:12:25,197 INFO L125 PetriNetUnfolderBase]: For 22858/22864 co-relation queries the response was YES. [2024-06-21 19:12:25,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55054 conditions, 19035 events. 14101/19035 cut-off events. For 22858/22864 co-relation queries the response was YES. Maximal size of possible extension queue 627. Compared 97649 event pairs, 7568 based on Foata normal form. 11/19040 useless extension candidates. Maximal degree in co-relation 55036. Up to 18853 conditions per place. [2024-06-21 19:12:25,355 INFO L140 encePairwiseOnDemand]: 37/51 looper letters, 83 selfloop transitions, 27 changer transitions 0/114 dead transitions. [2024-06-21 19:12:25,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 114 transitions, 710 flow [2024-06-21 19:12:25,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-21 19:12:25,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-21 19:12:25,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 185 transitions. [2024-06-21 19:12:25,357 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5182072829131653 [2024-06-21 19:12:25,357 INFO L175 Difference]: Start difference. First operand has 61 places, 63 transitions, 308 flow. Second operand 7 states and 185 transitions. [2024-06-21 19:12:25,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 114 transitions, 710 flow [2024-06-21 19:12:25,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 114 transitions, 698 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-06-21 19:12:25,368 INFO L231 Difference]: Finished difference. Result has 68 places, 68 transitions, 404 flow [2024-06-21 19:12:25,368 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=404, PETRI_PLACES=68, PETRI_TRANSITIONS=68} [2024-06-21 19:12:25,368 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 14 predicate places. [2024-06-21 19:12:25,369 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 68 transitions, 404 flow [2024-06-21 19:12:25,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 19:12:25,369 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:12:25,369 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:12:25,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-21 19:12:25,369 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:12:25,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:12:25,370 INFO L85 PathProgramCache]: Analyzing trace with hash 2109249141, now seen corresponding path program 1 times [2024-06-21 19:12:25,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:12:25,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459931428] [2024-06-21 19:12:25,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:12:25,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:12:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:12:27,053 INFO 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 19:12:27,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:12:27,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459931428] [2024-06-21 19:12:27,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459931428] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:12:27,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:12:27,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-21 19:12:27,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322435785] [2024-06-21 19:12:27,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:12:27,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-21 19:12:27,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:12:27,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-21 19:12:27,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-06-21 19:12:27,149 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 51 [2024-06-21 19:12:27,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 68 transitions, 404 flow. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states 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 19:12:27,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:12:27,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 51 [2024-06-21 19:12:27,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:12:29,367 INFO L124 PetriNetUnfolderBase]: 14130/19078 cut-off events. [2024-06-21 19:12:29,367 INFO L125 PetriNetUnfolderBase]: For 36254/36260 co-relation queries the response was YES. [2024-06-21 19:12:29,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60720 conditions, 19078 events. 14130/19078 cut-off events. For 36254/36260 co-relation queries the response was YES. Maximal size of possible extension queue 627. Compared 97990 event pairs, 6467 based on Foata normal form. 18/19090 useless extension candidates. Maximal degree in co-relation 60698. Up to 18818 conditions per place. [2024-06-21 19:12:29,502 INFO L140 encePairwiseOnDemand]: 37/51 looper letters, 90 selfloop transitions, 31 changer transitions 0/125 dead transitions. [2024-06-21 19:12:29,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 125 transitions, 856 flow [2024-06-21 19:12:29,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-21 19:12:29,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-21 19:12:29,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 207 transitions. [2024-06-21 19:12:29,504 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5073529411764706 [2024-06-21 19:12:29,506 INFO L175 Difference]: Start difference. First operand has 68 places, 68 transitions, 404 flow. Second operand 8 states and 207 transitions. [2024-06-21 19:12:29,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 125 transitions, 856 flow [2024-06-21 19:12:29,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 125 transitions, 788 flow, removed 10 selfloop flow, removed 5 redundant places. [2024-06-21 19:12:29,519 INFO L231 Difference]: Finished difference. Result has 70 places, 71 transitions, 443 flow [2024-06-21 19:12:29,519 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=443, PETRI_PLACES=70, PETRI_TRANSITIONS=71} [2024-06-21 19:12:29,526 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 16 predicate places. [2024-06-21 19:12:29,526 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 71 transitions, 443 flow [2024-06-21 19:12:29,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states 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 19:12:29,527 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:12:29,527 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:12:29,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-21 19:12:29,527 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:12:29,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:12:29,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1673469437, now seen corresponding path program 1 times [2024-06-21 19:12:29,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:12:29,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421685514] [2024-06-21 19:12:29,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:12:29,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:12:29,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:12:30,839 INFO 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 19:12:30,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:12:30,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421685514] [2024-06-21 19:12:30,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421685514] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:12:30,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:12:30,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-21 19:12:30,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123522275] [2024-06-21 19:12:30,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:12:30,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-21 19:12:30,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:12:30,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-21 19:12:30,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-21 19:12:30,920 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 51 [2024-06-21 19:12:30,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 71 transitions, 443 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 19:12:30,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:12:30,921 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 51 [2024-06-21 19:12:30,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:12:32,904 INFO L124 PetriNetUnfolderBase]: 14121/19064 cut-off events. [2024-06-21 19:12:32,905 INFO L125 PetriNetUnfolderBase]: For 51278/51278 co-relation queries the response was YES. [2024-06-21 19:12:32,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65137 conditions, 19064 events. 14121/19064 cut-off events. For 51278/51278 co-relation queries the response was YES. Maximal size of possible extension queue 627. Compared 97949 event pairs, 7483 based on Foata normal form. 3/19063 useless extension candidates. Maximal degree in co-relation 65114. Up to 19033 conditions per place. [2024-06-21 19:12:33,013 INFO L140 encePairwiseOnDemand]: 40/51 looper letters, 73 selfloop transitions, 12 changer transitions 0/89 dead transitions. [2024-06-21 19:12:33,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 89 transitions, 669 flow [2024-06-21 19:12:33,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-21 19:12:33,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-21 19:12:33,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 115 transitions. [2024-06-21 19:12:33,017 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45098039215686275 [2024-06-21 19:12:33,017 INFO L175 Difference]: Start difference. First operand has 70 places, 71 transitions, 443 flow. Second operand 5 states and 115 transitions. [2024-06-21 19:12:33,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 89 transitions, 669 flow [2024-06-21 19:12:33,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 89 transitions, 578 flow, removed 16 selfloop flow, removed 6 redundant places. [2024-06-21 19:12:33,030 INFO L231 Difference]: Finished difference. Result has 70 places, 73 transitions, 408 flow [2024-06-21 19:12:33,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=408, PETRI_PLACES=70, PETRI_TRANSITIONS=73} [2024-06-21 19:12:33,033 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 16 predicate places. [2024-06-21 19:12:33,033 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 73 transitions, 408 flow [2024-06-21 19:12:33,033 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 19:12:33,033 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:12:33,033 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:12:33,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-21 19:12:33,034 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:12:33,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:12:33,034 INFO L85 PathProgramCache]: Analyzing trace with hash 313008961, now seen corresponding path program 1 times [2024-06-21 19:12:33,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:12:33,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829525582] [2024-06-21 19:12:33,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:12:33,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:12:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:12:34,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 19:12:34,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:12:34,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829525582] [2024-06-21 19:12:34,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829525582] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:12:34,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:12:34,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 19:12:34,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392694198] [2024-06-21 19:12:34,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:12:34,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-21 19:12:34,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:12:34,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-21 19:12:34,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-21 19:12:34,743 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 51 [2024-06-21 19:12:34,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 73 transitions, 408 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 19:12:34,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:12:34,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 51 [2024-06-21 19:12:34,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:12:37,049 INFO L124 PetriNetUnfolderBase]: 14145/19096 cut-off events. [2024-06-21 19:12:37,049 INFO L125 PetriNetUnfolderBase]: For 58190/58190 co-relation queries the response was YES. [2024-06-21 19:12:37,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66256 conditions, 19096 events. 14145/19096 cut-off events. For 58190/58190 co-relation queries the response was YES. Maximal size of possible extension queue 626. Compared 97817 event pairs, 7098 based on Foata normal form. 10/19102 useless extension candidates. Maximal degree in co-relation 66230. Up to 18955 conditions per place. [2024-06-21 19:12:37,158 INFO L140 encePairwiseOnDemand]: 38/51 looper letters, 94 selfloop transitions, 26 changer transitions 0/124 dead transitions. [2024-06-21 19:12:37,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 124 transitions, 884 flow [2024-06-21 19:12:37,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-21 19:12:37,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-21 19:12:37,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 190 transitions. [2024-06-21 19:12:37,160 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4139433551198257 [2024-06-21 19:12:37,160 INFO L175 Difference]: Start difference. First operand has 70 places, 73 transitions, 408 flow. Second operand 9 states and 190 transitions. [2024-06-21 19:12:37,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 124 transitions, 884 flow [2024-06-21 19:12:37,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 124 transitions, 869 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-21 19:12:37,173 INFO L231 Difference]: Finished difference. Result has 79 places, 87 transitions, 581 flow [2024-06-21 19:12:37,174 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=581, PETRI_PLACES=79, PETRI_TRANSITIONS=87} [2024-06-21 19:12:37,174 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 25 predicate places. [2024-06-21 19:12:37,174 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 87 transitions, 581 flow [2024-06-21 19:12:37,174 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 19:12:37,175 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:12:37,175 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:12:37,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-21 19:12:37,175 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:12:37,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:12:37,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1107623290, now seen corresponding path program 1 times [2024-06-21 19:12:37,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:12:37,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708594176] [2024-06-21 19:12:37,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:12:37,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:12:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:12:38,381 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 19:12:38,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:12:38,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708594176] [2024-06-21 19:12:38,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708594176] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:12:38,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:12:38,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 19:12:38,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105896243] [2024-06-21 19:12:38,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:12:38,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-21 19:12:38,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:12:38,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-21 19:12:38,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-21 19:12:38,443 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 51 [2024-06-21 19:12:38,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 87 transitions, 581 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 19:12:38,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:12:38,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 51 [2024-06-21 19:12:38,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:12:40,549 INFO L124 PetriNetUnfolderBase]: 14294/19315 cut-off events. [2024-06-21 19:12:40,549 INFO L125 PetriNetUnfolderBase]: For 83317/83326 co-relation queries the response was YES. [2024-06-21 19:12:40,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74153 conditions, 19315 events. 14294/19315 cut-off events. For 83317/83326 co-relation queries the response was YES. Maximal size of possible extension queue 615. Compared 98612 event pairs, 7290 based on Foata normal form. 12/19321 useless extension candidates. Maximal degree in co-relation 74123. Up to 19162 conditions per place. [2024-06-21 19:12:40,692 INFO L140 encePairwiseOnDemand]: 38/51 looper letters, 101 selfloop transitions, 27 changer transitions 0/132 dead transitions. [2024-06-21 19:12:40,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 132 transitions, 1070 flow [2024-06-21 19:12:40,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-21 19:12:40,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-21 19:12:40,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 144 transitions. [2024-06-21 19:12:40,694 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47058823529411764 [2024-06-21 19:12:40,694 INFO L175 Difference]: Start difference. First operand has 79 places, 87 transitions, 581 flow. Second operand 6 states and 144 transitions. [2024-06-21 19:12:40,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 132 transitions, 1070 flow [2024-06-21 19:12:40,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 132 transitions, 993 flow, removed 21 selfloop flow, removed 6 redundant places. [2024-06-21 19:12:40,741 INFO L231 Difference]: Finished difference. Result has 80 places, 103 transitions, 716 flow [2024-06-21 19:12:40,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=716, PETRI_PLACES=80, PETRI_TRANSITIONS=103} [2024-06-21 19:12:40,742 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 26 predicate places. [2024-06-21 19:12:40,742 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 103 transitions, 716 flow [2024-06-21 19:12:40,742 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 19:12:40,742 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:12:40,742 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:12:40,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-21 19:12:40,743 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:12:40,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:12:40,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1886413660, now seen corresponding path program 2 times [2024-06-21 19:12:40,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:12:40,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190022665] [2024-06-21 19:12:40,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:12:40,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:12:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:12:41,899 INFO 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 19:12:41,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:12:41,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190022665] [2024-06-21 19:12:41,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190022665] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:12:41,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:12:41,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 19:12:41,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270483106] [2024-06-21 19:12:41,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:12:41,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-21 19:12:41,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:12:41,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-21 19:12:41,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-21 19:12:41,960 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 51 [2024-06-21 19:12:41,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 103 transitions, 716 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 19:12:41,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:12:41,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 51 [2024-06-21 19:12:41,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:12:44,101 INFO L124 PetriNetUnfolderBase]: 14279/19291 cut-off events. [2024-06-21 19:12:44,101 INFO L125 PetriNetUnfolderBase]: For 91631/91631 co-relation queries the response was YES. [2024-06-21 19:12:44,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74977 conditions, 19291 events. 14279/19291 cut-off events. For 91631/91631 co-relation queries the response was YES. Maximal size of possible extension queue 626. Compared 98785 event pairs, 7283 based on Foata normal form. 3/19290 useless extension candidates. Maximal degree in co-relation 74947. Up to 19234 conditions per place. [2024-06-21 19:12:44,225 INFO L140 encePairwiseOnDemand]: 39/51 looper letters, 107 selfloop transitions, 16 changer transitions 0/127 dead transitions. [2024-06-21 19:12:44,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 127 transitions, 1032 flow [2024-06-21 19:12:44,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-21 19:12:44,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-21 19:12:44,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 136 transitions. [2024-06-21 19:12:44,238 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-06-21 19:12:44,238 INFO L175 Difference]: Start difference. First operand has 80 places, 103 transitions, 716 flow. Second operand 6 states and 136 transitions. [2024-06-21 19:12:44,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 127 transitions, 1032 flow [2024-06-21 19:12:44,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 127 transitions, 1005 flow, removed 7 selfloop flow, removed 2 redundant places. [2024-06-21 19:12:44,292 INFO L231 Difference]: Finished difference. Result has 84 places, 104 transitions, 744 flow [2024-06-21 19:12:44,292 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=744, PETRI_PLACES=84, PETRI_TRANSITIONS=104} [2024-06-21 19:12:44,293 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 30 predicate places. [2024-06-21 19:12:44,293 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 104 transitions, 744 flow [2024-06-21 19:12:44,293 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 19:12:44,293 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:12:44,293 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:12:44,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-21 19:12:44,294 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:12:44,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:12:44,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1278096614, now seen corresponding path program 3 times [2024-06-21 19:12:44,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:12:44,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444345803] [2024-06-21 19:12:44,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:12:44,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:12:44,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:12:45,746 INFO 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 19:12:45,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:12:45,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444345803] [2024-06-21 19:12:45,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444345803] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:12:45,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:12:45,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 19:12:45,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019475633] [2024-06-21 19:12:45,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:12:45,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-21 19:12:45,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:12:45,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-21 19:12:45,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-21 19:12:45,838 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 51 [2024-06-21 19:12:45,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 104 transitions, 744 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 19:12:45,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:12:45,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 51 [2024-06-21 19:12:45,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:12:48,209 INFO L124 PetriNetUnfolderBase]: 14384/19437 cut-off events. [2024-06-21 19:12:48,209 INFO L125 PetriNetUnfolderBase]: For 104953/104962 co-relation queries the response was YES. [2024-06-21 19:12:48,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77356 conditions, 19437 events. 14384/19437 cut-off events. For 104953/104962 co-relation queries the response was YES. Maximal size of possible extension queue 626. Compared 99387 event pairs, 7267 based on Foata normal form. 12/19443 useless extension candidates. Maximal degree in co-relation 77324. Up to 19128 conditions per place. [2024-06-21 19:12:48,311 INFO L140 encePairwiseOnDemand]: 36/51 looper letters, 98 selfloop transitions, 60 changer transitions 0/162 dead transitions. [2024-06-21 19:12:48,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 162 transitions, 1375 flow [2024-06-21 19:12:48,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-21 19:12:48,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-21 19:12:48,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 166 transitions. [2024-06-21 19:12:48,313 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4649859943977591 [2024-06-21 19:12:48,313 INFO L175 Difference]: Start difference. First operand has 84 places, 104 transitions, 744 flow. Second operand 7 states and 166 transitions. [2024-06-21 19:12:48,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 162 transitions, 1375 flow [2024-06-21 19:12:48,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 162 transitions, 1324 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-06-21 19:12:48,367 INFO L231 Difference]: Finished difference. Result has 89 places, 128 transitions, 1098 flow [2024-06-21 19:12:48,367 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=705, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1098, PETRI_PLACES=89, PETRI_TRANSITIONS=128} [2024-06-21 19:12:48,367 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 35 predicate places. [2024-06-21 19:12:48,367 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 128 transitions, 1098 flow [2024-06-21 19:12:48,368 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 19:12:48,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:12:48,368 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:12:48,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-21 19:12:48,368 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:12:48,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:12:48,369 INFO L85 PathProgramCache]: Analyzing trace with hash 2109637782, now seen corresponding path program 1 times [2024-06-21 19:12:48,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:12:48,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088029739] [2024-06-21 19:12:48,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:12:48,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:12:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:12:49,675 INFO 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 19:12:49,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:12:49,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088029739] [2024-06-21 19:12:49,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088029739] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:12:49,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:12:49,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 19:12:49,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496532006] [2024-06-21 19:12:49,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:12:49,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 19:12:49,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:12:49,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 19:12:49,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-21 19:12:49,778 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 51 [2024-06-21 19:12:49,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 128 transitions, 1098 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 19:12:49,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:12:49,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 51 [2024-06-21 19:12:49,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:12:52,497 INFO L124 PetriNetUnfolderBase]: 15002/20274 cut-off events. [2024-06-21 19:12:52,497 INFO L125 PetriNetUnfolderBase]: For 126262/126271 co-relation queries the response was YES. [2024-06-21 19:12:52,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83388 conditions, 20274 events. 15002/20274 cut-off events. For 126262/126271 co-relation queries the response was YES. Maximal size of possible extension queue 615. Compared 103806 event pairs, 6426 based on Foata normal form. 23/20288 useless extension candidates. Maximal degree in co-relation 83353. Up to 19347 conditions per place. [2024-06-21 19:12:52,688 INFO L140 encePairwiseOnDemand]: 35/51 looper letters, 137 selfloop transitions, 58 changer transitions 0/199 dead transitions. [2024-06-21 19:12:52,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 199 transitions, 1968 flow [2024-06-21 19:12:52,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-21 19:12:52,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-21 19:12:52,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 180 transitions. [2024-06-21 19:12:52,690 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5042016806722689 [2024-06-21 19:12:52,690 INFO L175 Difference]: Start difference. First operand has 89 places, 128 transitions, 1098 flow. Second operand 7 states and 180 transitions. [2024-06-21 19:12:52,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 199 transitions, 1968 flow [2024-06-21 19:12:52,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 199 transitions, 1860 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-06-21 19:12:52,807 INFO L231 Difference]: Finished difference. Result has 95 places, 152 transitions, 1391 flow [2024-06-21 19:12:52,807 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=991, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1391, PETRI_PLACES=95, PETRI_TRANSITIONS=152} [2024-06-21 19:12:52,807 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 41 predicate places. [2024-06-21 19:12:52,807 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 152 transitions, 1391 flow [2024-06-21 19:12:52,808 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 19:12:52,808 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:12:52,808 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:12:52,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-21 19:12:52,808 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:12:52,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:12:52,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1650479618, now seen corresponding path program 2 times [2024-06-21 19:12:52,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:12:52,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171464498] [2024-06-21 19:12:52,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:12:52,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:12:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:12:53,949 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 19:12:53,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:12:53,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171464498] [2024-06-21 19:12:53,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171464498] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:12:53,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:12:53,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 19:12:53,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752736328] [2024-06-21 19:12:53,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:12:53,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 19:12:53,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:12:53,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 19:12:53,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-21 19:12:54,020 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 51 [2024-06-21 19:12:54,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 152 transitions, 1391 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 19:12:54,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:12:54,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 51 [2024-06-21 19:12:54,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:12:56,472 INFO L124 PetriNetUnfolderBase]: 15088/20382 cut-off events. [2024-06-21 19:12:56,473 INFO L125 PetriNetUnfolderBase]: For 166955/166958 co-relation queries the response was YES. [2024-06-21 19:12:56,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94546 conditions, 20382 events. 15088/20382 cut-off events. For 166955/166958 co-relation queries the response was YES. Maximal size of possible extension queue 626. Compared 104561 event pairs, 6791 based on Foata normal form. 12/20389 useless extension candidates. Maximal degree in co-relation 94506. Up to 20202 conditions per place. [2024-06-21 19:12:56,661 INFO L140 encePairwiseOnDemand]: 36/51 looper letters, 161 selfloop transitions, 29 changer transitions 0/194 dead transitions. [2024-06-21 19:12:56,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 194 transitions, 2033 flow [2024-06-21 19:12:56,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-21 19:12:56,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-21 19:12:56,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 167 transitions. [2024-06-21 19:12:56,662 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4677871148459384 [2024-06-21 19:12:56,662 INFO L175 Difference]: Start difference. First operand has 95 places, 152 transitions, 1391 flow. Second operand 7 states and 167 transitions. [2024-06-21 19:12:56,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 194 transitions, 2033 flow [2024-06-21 19:12:56,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 194 transitions, 1974 flow, removed 28 selfloop flow, removed 1 redundant places. [2024-06-21 19:12:56,844 INFO L231 Difference]: Finished difference. Result has 102 places, 159 transitions, 1491 flow [2024-06-21 19:12:56,844 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=1338, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1491, PETRI_PLACES=102, PETRI_TRANSITIONS=159} [2024-06-21 19:12:56,844 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 48 predicate places. [2024-06-21 19:12:56,844 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 159 transitions, 1491 flow [2024-06-21 19:12:56,845 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 19:12:56,845 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:12:56,845 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:12:56,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-06-21 19:12:56,845 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:12:56,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:12:56,846 INFO L85 PathProgramCache]: Analyzing trace with hash 153717058, now seen corresponding path program 3 times [2024-06-21 19:12:56,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:12:56,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459737852] [2024-06-21 19:12:56,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:12:56,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:12:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:12:58,104 INFO 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 19:12:58,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:12:58,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459737852] [2024-06-21 19:12:58,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459737852] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:12:58,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:12:58,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 19:12:58,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887923957] [2024-06-21 19:12:58,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:12:58,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 19:12:58,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:12:58,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 19:12:58,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-21 19:12:58,157 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 51 [2024-06-21 19:12:58,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 159 transitions, 1491 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 19:12:58,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:12:58,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 51 [2024-06-21 19:12:58,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:13:00,654 INFO L124 PetriNetUnfolderBase]: 15112/20414 cut-off events. [2024-06-21 19:13:00,654 INFO L125 PetriNetUnfolderBase]: For 191892/191895 co-relation queries the response was YES. [2024-06-21 19:13:00,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97629 conditions, 20414 events. 15112/20414 cut-off events. For 191892/191895 co-relation queries the response was YES. Maximal size of possible extension queue 626. Compared 104729 event pairs, 6784 based on Foata normal form. 12/20421 useless extension candidates. Maximal degree in co-relation 97584. Up to 20087 conditions per place. [2024-06-21 19:13:00,866 INFO L140 encePairwiseOnDemand]: 36/51 looper letters, 165 selfloop transitions, 40 changer transitions 0/209 dead transitions. [2024-06-21 19:13:00,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 209 transitions, 2287 flow [2024-06-21 19:13:00,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-21 19:13:00,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-21 19:13:00,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 171 transitions. [2024-06-21 19:13:00,886 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4789915966386555 [2024-06-21 19:13:00,886 INFO L175 Difference]: Start difference. First operand has 102 places, 159 transitions, 1491 flow. Second operand 7 states and 171 transitions. [2024-06-21 19:13:00,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 209 transitions, 2287 flow [2024-06-21 19:13:01,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 209 transitions, 2205 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-06-21 19:13:01,100 INFO L231 Difference]: Finished difference. Result has 106 places, 169 transitions, 1649 flow [2024-06-21 19:13:01,100 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=1409, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1649, PETRI_PLACES=106, PETRI_TRANSITIONS=169} [2024-06-21 19:13:01,101 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 52 predicate places. [2024-06-21 19:13:01,101 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 169 transitions, 1649 flow [2024-06-21 19:13:01,101 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 19:13:01,101 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:13:01,102 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:13:01,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-06-21 19:13:01,102 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:13:01,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:13:01,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1187756802, now seen corresponding path program 4 times [2024-06-21 19:13:01,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:13:01,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663766811] [2024-06-21 19:13:01,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:13:01,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:13:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:13:02,823 INFO 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 19:13:02,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:13:02,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663766811] [2024-06-21 19:13:02,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663766811] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:13:02,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:13:02,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 19:13:02,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961133555] [2024-06-21 19:13:02,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:13:02,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 19:13:02,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:13:02,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 19:13:02,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-21 19:13:02,915 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 51 [2024-06-21 19:13:02,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 169 transitions, 1649 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 19:13:02,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:13:02,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 51 [2024-06-21 19:13:02,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:13:05,795 INFO L124 PetriNetUnfolderBase]: 15783/21312 cut-off events. [2024-06-21 19:13:05,796 INFO L125 PetriNetUnfolderBase]: For 230889/230904 co-relation queries the response was YES. [2024-06-21 19:13:05,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106517 conditions, 21312 events. 15783/21312 cut-off events. For 230889/230904 co-relation queries the response was YES. Maximal size of possible extension queue 626. Compared 109651 event pairs, 6433 based on Foata normal form. 16/21319 useless extension candidates. Maximal degree in co-relation 106470. Up to 19927 conditions per place. [2024-06-21 19:13:06,079 INFO L140 encePairwiseOnDemand]: 34/51 looper letters, 191 selfloop transitions, 110 changer transitions 0/305 dead transitions. [2024-06-21 19:13:06,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 305 transitions, 3567 flow [2024-06-21 19:13:06,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-21 19:13:06,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-21 19:13:06,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 207 transitions. [2024-06-21 19:13:06,082 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5073529411764706 [2024-06-21 19:13:06,082 INFO L175 Difference]: Start difference. First operand has 106 places, 169 transitions, 1649 flow. Second operand 8 states and 207 transitions. [2024-06-21 19:13:06,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 305 transitions, 3567 flow [2024-06-21 19:13:06,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 305 transitions, 3406 flow, removed 68 selfloop flow, removed 3 redundant places. [2024-06-21 19:13:06,319 INFO L231 Difference]: Finished difference. Result has 114 places, 230 transitions, 2549 flow [2024-06-21 19:13:06,320 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=1576, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2549, PETRI_PLACES=114, PETRI_TRANSITIONS=230} [2024-06-21 19:13:06,320 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 60 predicate places. [2024-06-21 19:13:06,320 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 230 transitions, 2549 flow [2024-06-21 19:13:06,320 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 19:13:06,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:13:06,321 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:13:06,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-06-21 19:13:06,321 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:13:06,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:13:06,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1650470690, now seen corresponding path program 1 times [2024-06-21 19:13:06,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:13:06,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647814026] [2024-06-21 19:13:06,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:13:06,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:13:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:13:08,288 INFO 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 19:13:08,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:13:08,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647814026] [2024-06-21 19:13:08,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647814026] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:13:08,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:13:08,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-21 19:13:08,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934145690] [2024-06-21 19:13:08,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:13:08,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-21 19:13:08,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:13:08,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-21 19:13:08,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-06-21 19:13:08,394 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 51 [2024-06-21 19:13:08,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 230 transitions, 2549 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 19:13:08,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:13:08,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 51 [2024-06-21 19:13:08,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:13:11,422 INFO L124 PetriNetUnfolderBase]: 15803/21343 cut-off events. [2024-06-21 19:13:11,422 INFO L125 PetriNetUnfolderBase]: For 288815/288818 co-relation queries the response was YES. [2024-06-21 19:13:11,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117575 conditions, 21343 events. 15803/21343 cut-off events. For 288815/288818 co-relation queries the response was YES. Maximal size of possible extension queue 626. Compared 110077 event pairs, 6469 based on Foata normal form. 12/21350 useless extension candidates. Maximal degree in co-relation 117523. Up to 21102 conditions per place. [2024-06-21 19:13:11,675 INFO L140 encePairwiseOnDemand]: 38/51 looper letters, 230 selfloop transitions, 35 changer transitions 0/269 dead transitions. [2024-06-21 19:13:11,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 269 transitions, 3365 flow [2024-06-21 19:13:11,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-21 19:13:11,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-21 19:13:11,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 178 transitions. [2024-06-21 19:13:11,678 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4362745098039216 [2024-06-21 19:13:11,678 INFO L175 Difference]: Start difference. First operand has 114 places, 230 transitions, 2549 flow. Second operand 8 states and 178 transitions. [2024-06-21 19:13:11,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 269 transitions, 3365 flow [2024-06-21 19:13:12,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 269 transitions, 3297 flow, removed 33 selfloop flow, removed 1 redundant places. [2024-06-21 19:13:12,042 INFO L231 Difference]: Finished difference. Result has 121 places, 234 transitions, 2624 flow [2024-06-21 19:13:12,043 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=2481, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2624, PETRI_PLACES=121, PETRI_TRANSITIONS=234} [2024-06-21 19:13:12,043 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 67 predicate places. [2024-06-21 19:13:12,043 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 234 transitions, 2624 flow [2024-06-21 19:13:12,043 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 19:13:12,044 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:13:12,044 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:13:12,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-06-21 19:13:12,044 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:13:12,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:13:12,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1169320473, now seen corresponding path program 1 times [2024-06-21 19:13:12,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:13:12,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642906031] [2024-06-21 19:13:12,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:13:12,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:13:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:13:14,044 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 19:13:14,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:13:14,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642906031] [2024-06-21 19:13:14,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642906031] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:13:14,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:13:14,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 19:13:14,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171712364] [2024-06-21 19:13:14,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:13:14,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-21 19:13:14,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:13:14,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-21 19:13:14,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-21 19:13:14,153 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 51 [2024-06-21 19:13:14,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 234 transitions, 2624 flow. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states 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 19:13:14,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:13:14,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 51 [2024-06-21 19:13:14,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:13:17,534 INFO L124 PetriNetUnfolderBase]: 15796/21333 cut-off events. [2024-06-21 19:13:17,534 INFO L125 PetriNetUnfolderBase]: For 317304/317304 co-relation queries the response was YES. [2024-06-21 19:13:17,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121444 conditions, 21333 events. 15796/21333 cut-off events. For 317304/317304 co-relation queries the response was YES. Maximal size of possible extension queue 626. Compared 109829 event pairs, 6629 based on Foata normal form. 2/21331 useless extension candidates. Maximal degree in co-relation 121389. Up to 21261 conditions per place. [2024-06-21 19:13:17,696 INFO L140 encePairwiseOnDemand]: 41/51 looper letters, 231 selfloop transitions, 12 changer transitions 0/247 dead transitions. [2024-06-21 19:13:17,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 247 transitions, 3156 flow [2024-06-21 19:13:17,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-21 19:13:17,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-21 19:13:17,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 121 transitions. [2024-06-21 19:13:17,698 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3954248366013072 [2024-06-21 19:13:17,698 INFO L175 Difference]: Start difference. First operand has 121 places, 234 transitions, 2624 flow. Second operand 6 states and 121 transitions. [2024-06-21 19:13:17,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 247 transitions, 3156 flow [2024-06-21 19:13:17,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 247 transitions, 3025 flow, removed 33 selfloop flow, removed 6 redundant places. [2024-06-21 19:13:17,955 INFO L231 Difference]: Finished difference. Result has 121 places, 234 transitions, 2526 flow [2024-06-21 19:13:17,956 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=2493, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2526, PETRI_PLACES=121, PETRI_TRANSITIONS=234} [2024-06-21 19:13:17,956 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 67 predicate places. [2024-06-21 19:13:17,956 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 234 transitions, 2526 flow [2024-06-21 19:13:17,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states 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 19:13:17,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:13:17,957 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:13:17,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-06-21 19:13:17,957 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:13:17,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:13:17,957 INFO L85 PathProgramCache]: Analyzing trace with hash 970448517, now seen corresponding path program 1 times [2024-06-21 19:13:17,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:13:17,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586258509] [2024-06-21 19:13:17,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:13:17,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:13:17,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:13:19,834 INFO 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 19:13:19,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:13:19,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586258509] [2024-06-21 19:13:19,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586258509] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:13:19,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:13:19,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-21 19:13:19,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683860138] [2024-06-21 19:13:19,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:13:19,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-21 19:13:19,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:13:19,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-21 19:13:19,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-06-21 19:13:19,916 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 51 [2024-06-21 19:13:19,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 234 transitions, 2526 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 19:13:19,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:13:19,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 51 [2024-06-21 19:13:19,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:13:23,114 INFO L124 PetriNetUnfolderBase]: 15894/21477 cut-off events. [2024-06-21 19:13:23,115 INFO L125 PetriNetUnfolderBase]: For 339844/339868 co-relation queries the response was YES. [2024-06-21 19:13:23,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123236 conditions, 21477 events. 15894/21477 cut-off events. For 339844/339868 co-relation queries the response was YES. Maximal size of possible extension queue 615. Compared 110369 event pairs, 6442 based on Foata normal form. 23/21494 useless extension candidates. Maximal degree in co-relation 123180. Up to 21122 conditions per place. [2024-06-21 19:13:23,281 INFO L140 encePairwiseOnDemand]: 38/51 looper letters, 224 selfloop transitions, 54 changer transitions 0/282 dead transitions. [2024-06-21 19:13:23,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 282 transitions, 3451 flow [2024-06-21 19:13:23,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-21 19:13:23,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-21 19:13:23,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 176 transitions. [2024-06-21 19:13:23,283 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43137254901960786 [2024-06-21 19:13:23,283 INFO L175 Difference]: Start difference. First operand has 121 places, 234 transitions, 2526 flow. Second operand 8 states and 176 transitions. [2024-06-21 19:13:23,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 282 transitions, 3451 flow [2024-06-21 19:13:23,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 282 transitions, 3427 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-21 19:13:23,541 INFO L231 Difference]: Finished difference. Result has 125 places, 247 transitions, 2803 flow [2024-06-21 19:13:23,541 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=2502, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2803, PETRI_PLACES=125, PETRI_TRANSITIONS=247} [2024-06-21 19:13:23,541 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 71 predicate places. [2024-06-21 19:13:23,542 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 247 transitions, 2803 flow [2024-06-21 19:13:23,542 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 19:13:23,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:13:23,542 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:13:23,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-06-21 19:13:23,542 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:13:23,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:13:23,543 INFO L85 PathProgramCache]: Analyzing trace with hash 970538727, now seen corresponding path program 2 times [2024-06-21 19:13:23,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:13:23,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835945612] [2024-06-21 19:13:23,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:13:23,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:13:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:13:25,269 INFO 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 19:13:25,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:13:25,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835945612] [2024-06-21 19:13:25,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835945612] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:13:25,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:13:25,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 19:13:25,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010737662] [2024-06-21 19:13:25,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:13:25,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 19:13:25,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:13:25,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 19:13:25,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-06-21 19:13:25,393 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 51 [2024-06-21 19:13:25,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 247 transitions, 2803 flow. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 19:13:25,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:13:25,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 51 [2024-06-21 19:13:25,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:13:28,748 INFO L124 PetriNetUnfolderBase]: 15885/21468 cut-off events. [2024-06-21 19:13:28,749 INFO L125 PetriNetUnfolderBase]: For 382635/382647 co-relation queries the response was YES. [2024-06-21 19:13:28,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128011 conditions, 21468 events. 15885/21468 cut-off events. For 382635/382647 co-relation queries the response was YES. Maximal size of possible extension queue 615. Compared 110170 event pairs, 6437 based on Foata normal form. 11/21473 useless extension candidates. Maximal degree in co-relation 127953. Up to 21172 conditions per place. [2024-06-21 19:13:28,901 INFO L140 encePairwiseOnDemand]: 37/51 looper letters, 224 selfloop transitions, 51 changer transitions 0/279 dead transitions. [2024-06-21 19:13:28,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 279 transitions, 3482 flow [2024-06-21 19:13:28,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-21 19:13:28,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-21 19:13:28,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 162 transitions. [2024-06-21 19:13:28,903 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.453781512605042 [2024-06-21 19:13:28,903 INFO L175 Difference]: Start difference. First operand has 125 places, 247 transitions, 2803 flow. Second operand 7 states and 162 transitions. [2024-06-21 19:13:28,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 279 transitions, 3482 flow [2024-06-21 19:13:29,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 279 transitions, 3333 flow, removed 52 selfloop flow, removed 4 redundant places. [2024-06-21 19:13:29,234 INFO L231 Difference]: Finished difference. Result has 128 places, 247 transitions, 2769 flow [2024-06-21 19:13:29,234 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=2654, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2769, PETRI_PLACES=128, PETRI_TRANSITIONS=247} [2024-06-21 19:13:29,234 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 74 predicate places. [2024-06-21 19:13:29,234 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 247 transitions, 2769 flow [2024-06-21 19:13:29,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 19:13:29,235 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:13:29,235 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:13:29,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-06-21 19:13:29,235 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:13:29,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:13:29,235 INFO L85 PathProgramCache]: Analyzing trace with hash 974257952, now seen corresponding path program 1 times [2024-06-21 19:13:29,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:13:29,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868727967] [2024-06-21 19:13:29,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:13:29,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:13:29,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:13:30,638 INFO 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 19:13:30,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:13:30,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868727967] [2024-06-21 19:13:30,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868727967] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:13:30,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:13:30,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 19:13:30,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044991253] [2024-06-21 19:13:30,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:13:30,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 19:13:30,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:13:30,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 19:13:30,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-21 19:13:30,701 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 51 [2024-06-21 19:13:30,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 247 transitions, 2769 flow. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 19:13:30,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:13:30,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 51 [2024-06-21 19:13:30,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 19:13:34,158 INFO L124 PetriNetUnfolderBase]: 16010/21639 cut-off events. [2024-06-21 19:13:34,159 INFO L125 PetriNetUnfolderBase]: For 412414/412439 co-relation queries the response was YES. [2024-06-21 19:13:34,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130818 conditions, 21639 events. 16010/21639 cut-off events. For 412414/412439 co-relation queries the response was YES. Maximal size of possible extension queue 615. Compared 111139 event pairs, 6457 based on Foata normal form. 30/21660 useless extension candidates. Maximal degree in co-relation 130758. Up to 20076 conditions per place. [2024-06-21 19:13:34,343 INFO L140 encePairwiseOnDemand]: 35/51 looper letters, 192 selfloop transitions, 124 changer transitions 0/320 dead transitions. [2024-06-21 19:13:34,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 320 transitions, 4209 flow [2024-06-21 19:13:34,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-21 19:13:34,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-21 19:13:34,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 180 transitions. [2024-06-21 19:13:34,346 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5042016806722689 [2024-06-21 19:13:34,346 INFO L175 Difference]: Start difference. First operand has 128 places, 247 transitions, 2769 flow. Second operand 7 states and 180 transitions. [2024-06-21 19:13:34,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 320 transitions, 4209 flow [2024-06-21 19:13:34,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 320 transitions, 4106 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-06-21 19:13:34,717 INFO L231 Difference]: Finished difference. Result has 132 places, 267 transitions, 3375 flow [2024-06-21 19:13:34,717 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=2666, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3375, PETRI_PLACES=132, PETRI_TRANSITIONS=267} [2024-06-21 19:13:34,717 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, 78 predicate places. [2024-06-21 19:13:34,718 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 267 transitions, 3375 flow [2024-06-21 19:13:34,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 19:13:34,718 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 19:13:34,718 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 19:13:34,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-06-21 19:13:34,718 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-21 19:13:34,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 19:13:34,719 INFO L85 PathProgramCache]: Analyzing trace with hash -725846592, now seen corresponding path program 2 times [2024-06-21 19:13:34,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 19:13:34,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851961614] [2024-06-21 19:13:34,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 19:13:34,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 19:13:34,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 19:13:36,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 19:13:36,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 19:13:36,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851961614] [2024-06-21 19:13:36,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851961614] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 19:13:36,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 19:13:36,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 19:13:36,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898855027] [2024-06-21 19:13:36,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 19:13:36,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 19:13:36,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 19:13:36,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 19:13:36,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-21 19:13:36,292 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 51 [2024-06-21 19:13:36,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 267 transitions, 3375 flow. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 19:13:36,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 19:13:36,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 51 [2024-06-21 19:13:36,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand