./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix021_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/mix021_power.oepc_pso.oepc_rmo.oepc.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de 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/mix021_power.oepc_pso.oepc_rmo.oepc.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix021_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-7724a2d-m [2024-06-27 23:28:34,247 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 23:28:34,351 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 23:28:34,355 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 23:28:34,356 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 23:28:34,388 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 23:28:34,388 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 23:28:34,389 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 23:28:34,389 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 23:28:34,392 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 23:28:34,392 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 23:28:34,393 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 23:28:34,393 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 23:28:34,394 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 23:28:34,395 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 23:28:34,395 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 23:28:34,395 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 23:28:34,395 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 23:28:34,395 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 23:28:34,396 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 23:28:34,396 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 23:28:34,396 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 23:28:34,396 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 23:28:34,396 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 23:28:34,397 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 23:28:34,397 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 23:28:34,397 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 23:28:34,397 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 23:28:34,398 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 23:28:34,398 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 23:28:34,399 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 23:28:34,399 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 23:28:34,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 23:28:34,399 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 23:28:34,399 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 23:28:34,400 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 23:28:34,400 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 23:28:34,400 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 23:28:34,400 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 23:28:34,400 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 23:28:34,400 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 23:28:34,401 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 23:28:34,401 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 23:28:34,401 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-27 23:28:34,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 23:28:34,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 23:28:34,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 23:28:34,627 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 23:28:34,628 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 23:28:34,629 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix021_power.oepc_pso.oepc_rmo.oepc.i [2024-06-27 23:28:35,662 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 23:28:35,836 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 23:28:35,837 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix021_power.oepc_pso.oepc_rmo.oepc.i [2024-06-27 23:28:35,851 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eebdfc566/dbfedeb525e14b458e37cc80dcfd0b8d/FLAGb30e7c7dd [2024-06-27 23:28:35,861 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eebdfc566/dbfedeb525e14b458e37cc80dcfd0b8d [2024-06-27 23:28:35,863 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 23:28:35,863 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 23:28:35,864 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix021_power.oepc_pso.oepc_rmo.oepc.yml/witness.yml [2024-06-27 23:28:35,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 23:28:35,946 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 23:28:35,947 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 23:28:35,947 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 23:28:35,951 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 23:28:35,952 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 11:28:35" (1/2) ... [2024-06-27 23:28:35,952 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ce27a88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 11:28:35, skipping insertion in model container [2024-06-27 23:28:35,952 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 11:28:35" (1/2) ... [2024-06-27 23:28:35,954 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2670cb2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 11:28:35, skipping insertion in model container [2024-06-27 23:28:35,954 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 11:28:35" (2/2) ... [2024-06-27 23:28:35,955 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ce27a88 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:28:35, skipping insertion in model container [2024-06-27 23:28:35,955 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 11:28:35" (2/2) ... [2024-06-27 23:28:35,955 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 23:28:35,985 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 23:28:35,986 INFO L97 edCorrectnessWitness]: Location invariant before [L867-L867] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p2_EAX) + (long long )z >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )z >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )a >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (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_p2_EAX + (long long )a$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (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 )__unbuffered_p3_EBX + (long long )a$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EBX + (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_EBX - (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) [2024-06-27 23:28:35,987 INFO L97 edCorrectnessWitness]: Location invariant before [L869-L869] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p2_EAX) + (long long )z >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )z >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )a >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (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_p2_EAX + (long long )a$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (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 )__unbuffered_p3_EBX + (long long )a$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EBX + (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_EBX - (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) [2024-06-27 23:28:35,987 INFO L97 edCorrectnessWitness]: Location invariant before [L871-L871] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p2_EAX) + (long long )z >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )z >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )a >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (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_p2_EAX + (long long )a$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (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 )__unbuffered_p3_EBX + (long long )a$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EBX + (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_EBX - (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) [2024-06-27 23:28:35,987 INFO L97 edCorrectnessWitness]: Location invariant before [L872-L872] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p2_EAX) + (long long )z >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )z >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )a >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (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_p2_EAX + (long long )a$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (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 )__unbuffered_p3_EBX + (long long )a$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p3_EBX + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_p3_EBX + (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_EBX - (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) [2024-06-27 23:28:35,988 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 23:28:35,988 INFO L106 edCorrectnessWitness]: ghost_update [L865-L865] multithreaded = 1; [2024-06-27 23:28:36,033 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 23:28:36,346 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 23:28:36,354 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 23:28:36,596 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 23:28:36,631 INFO L206 MainTranslator]: Completed translation [2024-06-27 23:28:36,631 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:28:36 WrapperNode [2024-06-27 23:28:36,631 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 23:28:36,632 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 23:28:36,632 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 23:28:36,632 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 23:28:36,637 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 27.06 11:28:36" (1/1) ... [2024-06-27 23:28:36,678 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 27.06 11:28:36" (1/1) ... [2024-06-27 23:28:36,756 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 138 [2024-06-27 23:28:36,757 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 23:28:36,758 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 23:28:36,758 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 23:28:36,758 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 23:28:36,767 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:28:36" (1/1) ... [2024-06-27 23:28:36,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:28:36" (1/1) ... [2024-06-27 23:28:36,789 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:28:36" (1/1) ... [2024-06-27 23:28:36,823 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]. [2024-06-27 23:28:36,823 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:28:36" (1/1) ... [2024-06-27 23:28:36,823 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:28:36" (1/1) ... [2024-06-27 23:28:36,846 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:28:36" (1/1) ... [2024-06-27 23:28:36,848 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:28:36" (1/1) ... [2024-06-27 23:28:36,860 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:28:36" (1/1) ... [2024-06-27 23:28:36,863 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:28:36" (1/1) ... [2024-06-27 23:28:36,879 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 23:28:36,880 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 23:28:36,880 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 23:28:36,880 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 23:28:36,881 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:28:36" (1/1) ... [2024-06-27 23:28:36,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 23:28:36,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 23:28:36,905 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) [2024-06-27 23:28:36,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 23:28:36,923 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 [2024-06-27 23:28:36,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 23:28:36,936 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-27 23:28:36,937 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-27 23:28:36,937 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-27 23:28:36,937 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-27 23:28:36,937 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-27 23:28:36,937 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-27 23:28:36,937 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-06-27 23:28:36,938 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-06-27 23:28:36,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 23:28:36,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 23:28:36,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 23:28:36,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 23:28:36,940 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 23:28:37,064 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 23:28:37,066 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 23:28:37,682 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 23:28:37,683 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 23:28:37,843 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 23:28:37,844 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 23:28:37,845 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 11:28:37 BoogieIcfgContainer [2024-06-27 23:28:37,845 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 23:28:37,847 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 23:28:37,847 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 23:28:37,850 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 23:28:37,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 11:28:35" (1/4) ... [2024-06-27 23:28:37,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a5af04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 11:28:37, skipping insertion in model container [2024-06-27 23:28:37,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 11:28:35" (2/4) ... [2024-06-27 23:28:37,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a5af04 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 11:28:37, skipping insertion in model container [2024-06-27 23:28:37,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:28:36" (3/4) ... [2024-06-27 23:28:37,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a5af04 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 11:28:37, skipping insertion in model container [2024-06-27 23:28:37,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 11:28:37" (4/4) ... [2024-06-27 23:28:37,854 INFO L112 eAbstractionObserver]: Analyzing ICFG mix021_power.oepc_pso.oepc_rmo.oepc.i [2024-06-27 23:28:37,867 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 23:28:37,868 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-06-27 23:28:37,868 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 23:28:37,952 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 23:28:37,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 52 transitions, 120 flow [2024-06-27 23:28:38,016 INFO L124 PetriNetUnfolderBase]: 0/48 cut-off events. [2024-06-27 23:28:38,017 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 23:28:38,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 48 events. 0/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-06-27 23:28:38,018 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 52 transitions, 120 flow [2024-06-27 23:28:38,022 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 42 transitions, 96 flow [2024-06-27 23:28:38,033 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 23:28:38,039 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;@63fe1018, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 23:28:38,040 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-06-27 23:28:38,044 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 23:28:38,044 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-27 23:28:38,045 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 23:28:38,045 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:28:38,045 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 23:28:38,046 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)] === [2024-06-27 23:28:38,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:28:38,052 INFO L85 PathProgramCache]: Analyzing trace with hash 400592535, now seen corresponding path program 1 times [2024-06-27 23:28:38,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:28:38,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361997018] [2024-06-27 23:28:38,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:28:38,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:28:38,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:28:39,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:28:39,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:28:39,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361997018] [2024-06-27 23:28:39,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361997018] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:28:39,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:28:39,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 23:28:39,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130386243] [2024-06-27 23:28:39,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:28:39,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 23:28:39,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:28:39,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 23:28:39,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 23:28:39,851 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 52 [2024-06-27 23:28:39,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 42 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:28:39,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:28:39,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 52 [2024-06-27 23:28:39,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:28:42,192 INFO L124 PetriNetUnfolderBase]: 14075/18998 cut-off events. [2024-06-27 23:28:42,192 INFO L125 PetriNetUnfolderBase]: For 256/256 co-relation queries the response was YES. [2024-06-27 23:28:42,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38514 conditions, 18998 events. 14075/18998 cut-off events. For 256/256 co-relation queries the response was YES. Maximal size of possible extension queue 653. Compared 99024 event pairs, 11070 based on Foata normal form. 1/18739 useless extension candidates. Maximal degree in co-relation 38501. Up to 18981 conditions per place. [2024-06-27 23:28:42,323 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 45 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2024-06-27 23:28:42,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 56 transitions, 233 flow [2024-06-27 23:28:42,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 23:28:42,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 23:28:42,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2024-06-27 23:28:42,336 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5961538461538461 [2024-06-27 23:28:42,338 INFO L175 Difference]: Start difference. First operand has 55 places, 42 transitions, 96 flow. Second operand 3 states and 93 transitions. [2024-06-27 23:28:42,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 56 transitions, 233 flow [2024-06-27 23:28:42,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 56 transitions, 226 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-27 23:28:42,344 INFO L231 Difference]: Finished difference. Result has 54 places, 46 transitions, 131 flow [2024-06-27 23:28:42,346 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=131, PETRI_PLACES=54, PETRI_TRANSITIONS=46} [2024-06-27 23:28:42,348 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -1 predicate places. [2024-06-27 23:28:42,348 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 46 transitions, 131 flow [2024-06-27 23:28:42,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:28:42,349 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:28:42,349 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:28:42,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 23:28:42,350 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)] === [2024-06-27 23:28:42,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:28:42,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1577601866, now seen corresponding path program 1 times [2024-06-27 23:28:42,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:28:42,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325668780] [2024-06-27 23:28:42,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:28:42,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:28:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:28:43,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:28:43,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:28:43,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325668780] [2024-06-27 23:28:43,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325668780] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:28:43,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:28:43,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 23:28:43,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112731673] [2024-06-27 23:28:43,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:28:43,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 23:28:43,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:28:43,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 23:28:43,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 23:28:43,625 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 52 [2024-06-27 23:28:43,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 46 transitions, 131 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:28:43,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:28:43,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 52 [2024-06-27 23:28:43,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:28:45,900 INFO L124 PetriNetUnfolderBase]: 14065/18984 cut-off events. [2024-06-27 23:28:45,900 INFO L125 PetriNetUnfolderBase]: For 3511/3526 co-relation queries the response was YES. [2024-06-27 23:28:45,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43117 conditions, 18984 events. 14065/18984 cut-off events. For 3511/3526 co-relation queries the response was YES. Maximal size of possible extension queue 653. Compared 98579 event pairs, 10115 based on Foata normal form. 7/18987 useless extension candidates. Maximal degree in co-relation 43105. Up to 18946 conditions per place. [2024-06-27 23:28:45,976 INFO L140 encePairwiseOnDemand]: 42/52 looper letters, 55 selfloop transitions, 9 changer transitions 0/70 dead transitions. [2024-06-27 23:28:45,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 70 transitions, 325 flow [2024-06-27 23:28:45,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 23:28:45,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 23:28:45,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 120 transitions. [2024-06-27 23:28:45,978 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5769230769230769 [2024-06-27 23:28:45,978 INFO L175 Difference]: Start difference. First operand has 54 places, 46 transitions, 131 flow. Second operand 4 states and 120 transitions. [2024-06-27 23:28:45,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 70 transitions, 325 flow [2024-06-27 23:28:45,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 70 transitions, 320 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 23:28:45,982 INFO L231 Difference]: Finished difference. Result has 57 places, 50 transitions, 179 flow [2024-06-27 23:28:45,982 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=179, PETRI_PLACES=57, PETRI_TRANSITIONS=50} [2024-06-27 23:28:45,983 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 2 predicate places. [2024-06-27 23:28:45,983 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 50 transitions, 179 flow [2024-06-27 23:28:45,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:28:45,983 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:28:45,983 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:28:45,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 23:28:45,984 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)] === [2024-06-27 23:28:45,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:28:45,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1661016634, now seen corresponding path program 1 times [2024-06-27 23:28:45,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:28:45,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459570386] [2024-06-27 23:28:45,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:28:45,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:28:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:28:47,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:28:47,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:28:47,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459570386] [2024-06-27 23:28:47,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459570386] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:28:47,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:28:47,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 23:28:47,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353155972] [2024-06-27 23:28:47,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:28:47,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 23:28:47,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:28:47,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 23:28:47,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 23:28:47,306 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 52 [2024-06-27 23:28:47,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 50 transitions, 179 flow. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:28:47,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:28:47,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 52 [2024-06-27 23:28:47,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:28:49,564 INFO L124 PetriNetUnfolderBase]: 14083/19012 cut-off events. [2024-06-27 23:28:49,564 INFO L125 PetriNetUnfolderBase]: For 10006/10033 co-relation queries the response was YES. [2024-06-27 23:28:49,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47793 conditions, 19012 events. 14083/19012 cut-off events. For 10006/10033 co-relation queries the response was YES. Maximal size of possible extension queue 653. Compared 98563 event pairs, 8523 based on Foata normal form. 13/19017 useless extension candidates. Maximal degree in co-relation 47779. Up to 18867 conditions per place. [2024-06-27 23:28:49,638 INFO L140 encePairwiseOnDemand]: 40/52 looper letters, 73 selfloop transitions, 21 changer transitions 0/100 dead transitions. [2024-06-27 23:28:49,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 100 transitions, 541 flow [2024-06-27 23:28:49,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 23:28:49,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 23:28:49,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 157 transitions. [2024-06-27 23:28:49,640 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6038461538461538 [2024-06-27 23:28:49,640 INFO L175 Difference]: Start difference. First operand has 57 places, 50 transitions, 179 flow. Second operand 5 states and 157 transitions. [2024-06-27 23:28:49,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 100 transitions, 541 flow [2024-06-27 23:28:49,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 100 transitions, 522 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-06-27 23:28:49,644 INFO L231 Difference]: Finished difference. Result has 62 places, 64 transitions, 310 flow [2024-06-27 23:28:49,644 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=310, PETRI_PLACES=62, PETRI_TRANSITIONS=64} [2024-06-27 23:28:49,645 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 7 predicate places. [2024-06-27 23:28:49,645 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 64 transitions, 310 flow [2024-06-27 23:28:49,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:28:49,645 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:28:49,646 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:28:49,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 23:28:49,646 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)] === [2024-06-27 23:28:49,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:28:49,646 INFO L85 PathProgramCache]: Analyzing trace with hash 131209775, now seen corresponding path program 1 times [2024-06-27 23:28:49,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:28:49,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330021783] [2024-06-27 23:28:49,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:28:49,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:28:49,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:28:51,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:28:51,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:28:51,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330021783] [2024-06-27 23:28:51,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330021783] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:28:51,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:28:51,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 23:28:51,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109274694] [2024-06-27 23:28:51,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:28:51,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 23:28:51,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:28:51,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 23:28:51,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-27 23:28:51,341 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 52 [2024-06-27 23:28:51,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 64 transitions, 310 flow. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 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) [2024-06-27 23:28:51,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:28:51,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 52 [2024-06-27 23:28:51,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:28:53,509 INFO L124 PetriNetUnfolderBase]: 14101/19037 cut-off events. [2024-06-27 23:28:53,509 INFO L125 PetriNetUnfolderBase]: For 23431/23493 co-relation queries the response was YES. [2024-06-27 23:28:53,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55055 conditions, 19037 events. 14101/19037 cut-off events. For 23431/23493 co-relation queries the response was YES. Maximal size of possible extension queue 653. Compared 98762 event pairs, 7568 based on Foata normal form. 23/19052 useless extension candidates. Maximal degree in co-relation 55038. Up to 18853 conditions per place. [2024-06-27 23:28:53,620 INFO L140 encePairwiseOnDemand]: 39/52 looper letters, 83 selfloop transitions, 26 changer transitions 0/115 dead transitions. [2024-06-27 23:28:53,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 115 transitions, 710 flow [2024-06-27 23:28:53,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 23:28:53,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 23:28:53,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 185 transitions. [2024-06-27 23:28:53,625 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.592948717948718 [2024-06-27 23:28:53,625 INFO L175 Difference]: Start difference. First operand has 62 places, 64 transitions, 310 flow. Second operand 6 states and 185 transitions. [2024-06-27 23:28:53,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 115 transitions, 710 flow [2024-06-27 23:28:53,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 115 transitions, 698 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-06-27 23:28:53,638 INFO L231 Difference]: Finished difference. Result has 68 places, 69 transitions, 404 flow [2024-06-27 23:28:53,639 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=404, PETRI_PLACES=68, PETRI_TRANSITIONS=69} [2024-06-27 23:28:53,640 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 13 predicate places. [2024-06-27 23:28:53,640 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 69 transitions, 404 flow [2024-06-27 23:28:53,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 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) [2024-06-27 23:28:53,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:28:53,641 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:28:53,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 23:28:53,641 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)] === [2024-06-27 23:28:53,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:28:53,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1490880453, now seen corresponding path program 1 times [2024-06-27 23:28:53,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:28:53,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169851639] [2024-06-27 23:28:53,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:28:53,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:28:53,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:28:55,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:28:55,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:28:55,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169851639] [2024-06-27 23:28:55,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169851639] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:28:55,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:28:55,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 23:28:55,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594704404] [2024-06-27 23:28:55,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:28:55,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 23:28:55,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:28:55,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 23:28:55,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-06-27 23:28:55,786 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 52 [2024-06-27 23:28:55,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 69 transitions, 404 flow. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:28:55,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:28:55,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 52 [2024-06-27 23:28:55,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:28:58,054 INFO L124 PetriNetUnfolderBase]: 14130/19080 cut-off events. [2024-06-27 23:28:58,055 INFO L125 PetriNetUnfolderBase]: For 37240/37298 co-relation queries the response was YES. [2024-06-27 23:28:58,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60721 conditions, 19080 events. 14130/19080 cut-off events. For 37240/37298 co-relation queries the response was YES. Maximal size of possible extension queue 653. Compared 99058 event pairs, 6467 based on Foata normal form. 30/19102 useless extension candidates. Maximal degree in co-relation 60700. Up to 18818 conditions per place. [2024-06-27 23:28:58,175 INFO L140 encePairwiseOnDemand]: 38/52 looper letters, 90 selfloop transitions, 31 changer transitions 0/126 dead transitions. [2024-06-27 23:28:58,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 126 transitions, 856 flow [2024-06-27 23:28:58,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 23:28:58,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 23:28:58,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 215 transitions. [2024-06-27 23:28:58,177 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5168269230769231 [2024-06-27 23:28:58,177 INFO L175 Difference]: Start difference. First operand has 68 places, 69 transitions, 404 flow. Second operand 8 states and 215 transitions. [2024-06-27 23:28:58,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 126 transitions, 856 flow [2024-06-27 23:28:58,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 126 transitions, 790 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-06-27 23:28:58,189 INFO L231 Difference]: Finished difference. Result has 71 places, 72 transitions, 445 flow [2024-06-27 23:28:58,189 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=445, PETRI_PLACES=71, PETRI_TRANSITIONS=72} [2024-06-27 23:28:58,189 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 16 predicate places. [2024-06-27 23:28:58,189 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 72 transitions, 445 flow [2024-06-27 23:28:58,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:28:58,190 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:28:58,190 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:28:58,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 23:28:58,190 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)] === [2024-06-27 23:28:58,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:28:58,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1084653298, now seen corresponding path program 1 times [2024-06-27 23:28:58,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:28:58,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595465809] [2024-06-27 23:28:58,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:28:58,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:28:58,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:28:59,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:28:59,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:28:59,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595465809] [2024-06-27 23:28:59,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595465809] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:28:59,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:28:59,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 23:28:59,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158624121] [2024-06-27 23:28:59,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:28:59,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 23:28:59,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:28:59,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 23:28:59,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 23:28:59,844 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2024-06-27 23:28:59,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 72 transitions, 445 flow. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:28:59,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:28:59,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2024-06-27 23:28:59,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:29:02,023 INFO L124 PetriNetUnfolderBase]: 14121/19065 cut-off events. [2024-06-27 23:29:02,024 INFO L125 PetriNetUnfolderBase]: For 52680/52714 co-relation queries the response was YES. [2024-06-27 23:29:02,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65138 conditions, 19065 events. 14121/19065 cut-off events. For 52680/52714 co-relation queries the response was YES. Maximal size of possible extension queue 653. Compared 99015 event pairs, 7483 based on Foata normal form. 14/19076 useless extension candidates. Maximal degree in co-relation 65115. Up to 19033 conditions per place. [2024-06-27 23:29:02,127 INFO L140 encePairwiseOnDemand]: 41/52 looper letters, 73 selfloop transitions, 12 changer transitions 0/90 dead transitions. [2024-06-27 23:29:02,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 90 transitions, 671 flow [2024-06-27 23:29:02,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 23:29:02,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 23:29:02,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 120 transitions. [2024-06-27 23:29:02,136 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46153846153846156 [2024-06-27 23:29:02,136 INFO L175 Difference]: Start difference. First operand has 71 places, 72 transitions, 445 flow. Second operand 5 states and 120 transitions. [2024-06-27 23:29:02,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 90 transitions, 671 flow [2024-06-27 23:29:02,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 90 transitions, 580 flow, removed 16 selfloop flow, removed 6 redundant places. [2024-06-27 23:29:02,148 INFO L231 Difference]: Finished difference. Result has 71 places, 74 transitions, 410 flow [2024-06-27 23:29:02,149 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=410, PETRI_PLACES=71, PETRI_TRANSITIONS=74} [2024-06-27 23:29:02,151 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 16 predicate places. [2024-06-27 23:29:02,152 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 74 transitions, 410 flow [2024-06-27 23:29:02,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:29:02,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:29:02,152 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:29:02,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 23:29:02,152 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)] === [2024-06-27 23:29:02,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:29:02,153 INFO L85 PathProgramCache]: Analyzing trace with hash -736436588, now seen corresponding path program 1 times [2024-06-27 23:29:02,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:29:02,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520440772] [2024-06-27 23:29:02,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:29:02,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:29:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:29:04,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:29:04,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:29:04,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520440772] [2024-06-27 23:29:04,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520440772] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:29:04,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:29:04,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 23:29:04,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049301713] [2024-06-27 23:29:04,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:29:04,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 23:29:04,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:29:04,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 23:29:04,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 23:29:04,328 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2024-06-27 23:29:04,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 74 transitions, 410 flow. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:29:04,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:29:04,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2024-06-27 23:29:04,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:29:06,931 INFO L124 PetriNetUnfolderBase]: 14145/19099 cut-off events. [2024-06-27 23:29:06,931 INFO L125 PetriNetUnfolderBase]: For 58256/58269 co-relation queries the response was YES. [2024-06-27 23:29:06,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66259 conditions, 19099 events. 14145/19099 cut-off events. For 58256/58269 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 98617 event pairs, 7102 based on Foata normal form. 19/19112 useless extension candidates. Maximal degree in co-relation 66233. Up to 18955 conditions per place. [2024-06-27 23:29:07,030 INFO L140 encePairwiseOnDemand]: 39/52 looper letters, 88 selfloop transitions, 24 changer transitions 0/117 dead transitions. [2024-06-27 23:29:07,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 117 transitions, 850 flow [2024-06-27 23:29:07,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 23:29:07,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 23:29:07,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 152 transitions. [2024-06-27 23:29:07,031 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48717948717948717 [2024-06-27 23:29:07,031 INFO L175 Difference]: Start difference. First operand has 71 places, 74 transitions, 410 flow. Second operand 6 states and 152 transitions. [2024-06-27 23:29:07,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 117 transitions, 850 flow [2024-06-27 23:29:07,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 117 transitions, 835 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 23:29:07,050 INFO L231 Difference]: Finished difference. Result has 77 places, 88 transitions, 587 flow [2024-06-27 23:29:07,051 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=587, PETRI_PLACES=77, PETRI_TRANSITIONS=88} [2024-06-27 23:29:07,051 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 22 predicate places. [2024-06-27 23:29:07,051 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 88 transitions, 587 flow [2024-06-27 23:29:07,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:29:07,052 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:29:07,052 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:29:07,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 23:29:07,052 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)] === [2024-06-27 23:29:07,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:29:07,053 INFO L85 PathProgramCache]: Analyzing trace with hash 2047968495, now seen corresponding path program 1 times [2024-06-27 23:29:07,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:29:07,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194224299] [2024-06-27 23:29:07,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:29:07,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:29:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:29:08,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:29:08,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:29:08,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194224299] [2024-06-27 23:29:08,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194224299] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:29:08,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:29:08,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 23:29:08,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694280820] [2024-06-27 23:29:08,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:29:08,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 23:29:08,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:29:08,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 23:29:08,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-27 23:29:08,578 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2024-06-27 23:29:08,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 88 transitions, 587 flow. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:29:08,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:29:08,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2024-06-27 23:29:08,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:29:10,878 INFO L124 PetriNetUnfolderBase]: 14294/19322 cut-off events. [2024-06-27 23:29:10,878 INFO L125 PetriNetUnfolderBase]: For 85349/85470 co-relation queries the response was YES. [2024-06-27 23:29:10,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74188 conditions, 19322 events. 14294/19322 cut-off events. For 85349/85470 co-relation queries the response was YES. Maximal size of possible extension queue 648. Compared 99527 event pairs, 7290 based on Foata normal form. 33/19343 useless extension candidates. Maximal degree in co-relation 74157. Up to 19162 conditions per place. [2024-06-27 23:29:10,970 INFO L140 encePairwiseOnDemand]: 39/52 looper letters, 101 selfloop transitions, 27 changer transitions 0/133 dead transitions. [2024-06-27 23:29:10,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 133 transitions, 1076 flow [2024-06-27 23:29:10,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 23:29:10,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 23:29:10,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 150 transitions. [2024-06-27 23:29:10,972 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4807692307692308 [2024-06-27 23:29:10,972 INFO L175 Difference]: Start difference. First operand has 77 places, 88 transitions, 587 flow. Second operand 6 states and 150 transitions. [2024-06-27 23:29:10,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 133 transitions, 1076 flow [2024-06-27 23:29:11,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 133 transitions, 1059 flow, removed 7 selfloop flow, removed 1 redundant places. [2024-06-27 23:29:11,008 INFO L231 Difference]: Finished difference. Result has 83 places, 104 transitions, 782 flow [2024-06-27 23:29:11,009 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=782, PETRI_PLACES=83, PETRI_TRANSITIONS=104} [2024-06-27 23:29:11,009 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 28 predicate places. [2024-06-27 23:29:11,009 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 104 transitions, 782 flow [2024-06-27 23:29:11,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:29:11,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:29:11,010 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:29:11,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 23:29:11,010 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)] === [2024-06-27 23:29:11,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:29:11,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1325211631, now seen corresponding path program 2 times [2024-06-27 23:29:11,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:29:11,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904336203] [2024-06-27 23:29:11,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:29:11,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:29:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:29:12,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:29:12,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:29:12,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904336203] [2024-06-27 23:29:12,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904336203] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:29:12,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:29:12,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 23:29:12,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694210984] [2024-06-27 23:29:12,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:29:12,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 23:29:12,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:29:12,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 23:29:12,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-27 23:29:12,416 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2024-06-27 23:29:12,416 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 104 transitions, 782 flow. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:29:12,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:29:12,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2024-06-27 23:29:12,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:29:14,725 INFO L124 PetriNetUnfolderBase]: 14279/19297 cut-off events. [2024-06-27 23:29:14,725 INFO L125 PetriNetUnfolderBase]: For 93863/93921 co-relation queries the response was YES. [2024-06-27 23:29:14,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75227 conditions, 19297 events. 14279/19297 cut-off events. For 93863/93921 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 99518 event pairs, 7283 based on Foata normal form. 26/19315 useless extension candidates. Maximal degree in co-relation 75192. Up to 19234 conditions per place. [2024-06-27 23:29:14,839 INFO L140 encePairwiseOnDemand]: 40/52 looper letters, 107 selfloop transitions, 16 changer transitions 0/128 dead transitions. [2024-06-27 23:29:14,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 128 transitions, 1098 flow [2024-06-27 23:29:14,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 23:29:14,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 23:29:14,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 142 transitions. [2024-06-27 23:29:14,841 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4551282051282051 [2024-06-27 23:29:14,841 INFO L175 Difference]: Start difference. First operand has 83 places, 104 transitions, 782 flow. Second operand 6 states and 142 transitions. [2024-06-27 23:29:14,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 128 transitions, 1098 flow [2024-06-27 23:29:14,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 128 transitions, 1071 flow, removed 7 selfloop flow, removed 2 redundant places. [2024-06-27 23:29:14,904 INFO L231 Difference]: Finished difference. Result has 87 places, 105 transitions, 810 flow [2024-06-27 23:29:14,904 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=755, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=810, PETRI_PLACES=87, PETRI_TRANSITIONS=105} [2024-06-27 23:29:14,904 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 32 predicate places. [2024-06-27 23:29:14,904 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 105 transitions, 810 flow [2024-06-27 23:29:14,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:29:14,905 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:29:14,905 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:29:14,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-27 23:29:14,905 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)] === [2024-06-27 23:29:14,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:29:14,905 INFO L85 PathProgramCache]: Analyzing trace with hash 2046645299, now seen corresponding path program 3 times [2024-06-27 23:29:14,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:29:14,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336428481] [2024-06-27 23:29:14,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:29:14,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:29:14,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:29:16,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:29:16,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:29:16,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336428481] [2024-06-27 23:29:16,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336428481] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:29:16,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:29:16,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 23:29:16,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715992272] [2024-06-27 23:29:16,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:29:16,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 23:29:16,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:29:16,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 23:29:16,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-27 23:29:16,665 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2024-06-27 23:29:16,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 105 transitions, 810 flow. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:29:16,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:29:16,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2024-06-27 23:29:16,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:29:19,129 INFO L124 PetriNetUnfolderBase]: 14384/19448 cut-off events. [2024-06-27 23:29:19,129 INFO L125 PetriNetUnfolderBase]: For 107598/107765 co-relation queries the response was YES. [2024-06-27 23:29:19,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77611 conditions, 19448 events. 14384/19448 cut-off events. For 107598/107765 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 100252 event pairs, 7267 based on Foata normal form. 51/19483 useless extension candidates. Maximal degree in co-relation 77574. Up to 19128 conditions per place. [2024-06-27 23:29:19,263 INFO L140 encePairwiseOnDemand]: 38/52 looper letters, 99 selfloop transitions, 59 changer transitions 0/163 dead transitions. [2024-06-27 23:29:19,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 163 transitions, 1441 flow [2024-06-27 23:29:19,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 23:29:19,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 23:29:19,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 162 transitions. [2024-06-27 23:29:19,264 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5192307692307693 [2024-06-27 23:29:19,265 INFO L175 Difference]: Start difference. First operand has 87 places, 105 transitions, 810 flow. Second operand 6 states and 162 transitions. [2024-06-27 23:29:19,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 163 transitions, 1441 flow [2024-06-27 23:29:19,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 163 transitions, 1390 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-06-27 23:29:19,347 INFO L231 Difference]: Finished difference. Result has 91 places, 129 transitions, 1162 flow [2024-06-27 23:29:19,348 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=771, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1162, PETRI_PLACES=91, PETRI_TRANSITIONS=129} [2024-06-27 23:29:19,348 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 36 predicate places. [2024-06-27 23:29:19,348 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 129 transitions, 1162 flow [2024-06-27 23:29:19,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:29:19,348 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:29:19,349 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:29:19,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-27 23:29:19,349 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)] === [2024-06-27 23:29:19,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:29:19,349 INFO L85 PathProgramCache]: Analyzing trace with hash -937485163, now seen corresponding path program 1 times [2024-06-27 23:29:19,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:29:19,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977650490] [2024-06-27 23:29:19,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:29:19,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:29:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:29:20,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:29:20,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:29:20,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977650490] [2024-06-27 23:29:20,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977650490] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:29:20,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:29:20,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 23:29:20,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763818516] [2024-06-27 23:29:20,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:29:20,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 23:29:20,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:29:20,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 23:29:20,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-27 23:29:21,093 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2024-06-27 23:29:21,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 129 transitions, 1162 flow. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:29:21,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:29:21,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2024-06-27 23:29:21,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:29:23,593 INFO L124 PetriNetUnfolderBase]: 14762/19981 cut-off events. [2024-06-27 23:29:23,593 INFO L125 PetriNetUnfolderBase]: For 126212/126292 co-relation queries the response was YES. [2024-06-27 23:29:23,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82282 conditions, 19981 events. 14762/19981 cut-off events. For 126212/126292 co-relation queries the response was YES. Maximal size of possible extension queue 645. Compared 103112 event pairs, 6749 based on Foata normal form. 33/19982 useless extension candidates. Maximal degree in co-relation 82243. Up to 19237 conditions per place. [2024-06-27 23:29:23,753 INFO L140 encePairwiseOnDemand]: 37/52 looper letters, 134 selfloop transitions, 58 changer transitions 0/197 dead transitions. [2024-06-27 23:29:23,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 197 transitions, 2030 flow [2024-06-27 23:29:23,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 23:29:23,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 23:29:23,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 184 transitions. [2024-06-27 23:29:23,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5054945054945055 [2024-06-27 23:29:23,755 INFO L175 Difference]: Start difference. First operand has 91 places, 129 transitions, 1162 flow. Second operand 7 states and 184 transitions. [2024-06-27 23:29:23,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 197 transitions, 2030 flow [2024-06-27 23:29:23,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 197 transitions, 1924 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-06-27 23:29:23,901 INFO L231 Difference]: Finished difference. Result has 98 places, 153 transitions, 1461 flow [2024-06-27 23:29:23,901 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1057, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1461, PETRI_PLACES=98, PETRI_TRANSITIONS=153} [2024-06-27 23:29:23,901 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 43 predicate places. [2024-06-27 23:29:23,901 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 153 transitions, 1461 flow [2024-06-27 23:29:23,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:29:23,902 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:29:23,902 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:29:23,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-27 23:29:23,902 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)] === [2024-06-27 23:29:23,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:29:23,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1868113331, now seen corresponding path program 2 times [2024-06-27 23:29:23,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:29:23,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88082825] [2024-06-27 23:29:23,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:29:23,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:29:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:29:25,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:29:25,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:29:25,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88082825] [2024-06-27 23:29:25,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88082825] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:29:25,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:29:25,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 23:29:25,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720800452] [2024-06-27 23:29:25,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:29:25,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 23:29:25,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:29:25,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 23:29:25,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-27 23:29:25,326 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2024-06-27 23:29:25,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 153 transitions, 1461 flow. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:29:25,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:29:25,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2024-06-27 23:29:25,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:29:28,097 INFO L124 PetriNetUnfolderBase]: 14805/20026 cut-off events. [2024-06-27 23:29:28,098 INFO L125 PetriNetUnfolderBase]: For 164376/164428 co-relation queries the response was YES. [2024-06-27 23:29:28,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91899 conditions, 20026 events. 14805/20026 cut-off events. For 164376/164428 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 103569 event pairs, 6817 based on Foata normal form. 13/20012 useless extension candidates. Maximal degree in co-relation 91854. Up to 19751 conditions per place. [2024-06-27 23:29:28,219 INFO L140 encePairwiseOnDemand]: 38/52 looper letters, 164 selfloop transitions, 35 changer transitions 0/204 dead transitions. [2024-06-27 23:29:28,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 204 transitions, 2265 flow [2024-06-27 23:29:28,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 23:29:28,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 23:29:28,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 177 transitions. [2024-06-27 23:29:28,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48626373626373626 [2024-06-27 23:29:28,221 INFO L175 Difference]: Start difference. First operand has 98 places, 153 transitions, 1461 flow. Second operand 7 states and 177 transitions. [2024-06-27 23:29:28,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 204 transitions, 2265 flow [2024-06-27 23:29:28,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 204 transitions, 2210 flow, removed 26 selfloop flow, removed 1 redundant places. [2024-06-27 23:29:28,361 INFO L231 Difference]: Finished difference. Result has 105 places, 163 transitions, 1622 flow [2024-06-27 23:29:28,362 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1414, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1622, PETRI_PLACES=105, PETRI_TRANSITIONS=163} [2024-06-27 23:29:28,362 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 50 predicate places. [2024-06-27 23:29:28,362 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 163 transitions, 1622 flow [2024-06-27 23:29:28,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:29:28,363 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:29:28,363 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:29:28,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-06-27 23:29:28,363 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)] === [2024-06-27 23:29:28,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:29:28,364 INFO L85 PathProgramCache]: Analyzing trace with hash 954064691, now seen corresponding path program 3 times [2024-06-27 23:29:28,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:29:28,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281047743] [2024-06-27 23:29:28,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:29:28,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:29:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:29:29,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:29:29,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:29:29,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281047743] [2024-06-27 23:29:29,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281047743] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:29:29,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:29:29,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 23:29:29,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682716598] [2024-06-27 23:29:29,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:29:29,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 23:29:29,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:29:29,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 23:29:29,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-27 23:29:29,773 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2024-06-27 23:29:29,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 163 transitions, 1622 flow. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:29:29,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:29:29,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2024-06-27 23:29:29,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:29:32,487 INFO L124 PetriNetUnfolderBase]: 14817/20042 cut-off events. [2024-06-27 23:29:32,487 INFO L125 PetriNetUnfolderBase]: For 194799/194851 co-relation queries the response was YES. [2024-06-27 23:29:32,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96005 conditions, 20042 events. 14817/20042 cut-off events. For 194799/194851 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 103462 event pairs, 6817 based on Foata normal form. 13/20028 useless extension candidates. Maximal degree in co-relation 95956. Up to 19866 conditions per place. [2024-06-27 23:29:32,653 INFO L140 encePairwiseOnDemand]: 38/52 looper letters, 170 selfloop transitions, 29 changer transitions 0/204 dead transitions. [2024-06-27 23:29:32,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 204 transitions, 2300 flow [2024-06-27 23:29:32,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 23:29:32,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 23:29:32,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 173 transitions. [2024-06-27 23:29:32,654 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47527472527472525 [2024-06-27 23:29:32,654 INFO L175 Difference]: Start difference. First operand has 105 places, 163 transitions, 1622 flow. Second operand 7 states and 173 transitions. [2024-06-27 23:29:32,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 204 transitions, 2300 flow [2024-06-27 23:29:32,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 204 transitions, 2231 flow, removed 20 selfloop flow, removed 3 redundant places. [2024-06-27 23:29:32,863 INFO L231 Difference]: Finished difference. Result has 110 places, 170 transitions, 1726 flow [2024-06-27 23:29:32,864 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1556, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1726, PETRI_PLACES=110, PETRI_TRANSITIONS=170} [2024-06-27 23:29:32,864 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 55 predicate places. [2024-06-27 23:29:32,864 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 170 transitions, 1726 flow [2024-06-27 23:29:32,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:29:32,865 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:29:32,865 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:29:32,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-06-27 23:29:32,865 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)] === [2024-06-27 23:29:32,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:29:32,865 INFO L85 PathProgramCache]: Analyzing trace with hash -978504239, now seen corresponding path program 4 times [2024-06-27 23:29:32,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:29:32,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397485510] [2024-06-27 23:29:32,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:29:32,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:29:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:29:34,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:29:34,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:29:34,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397485510] [2024-06-27 23:29:34,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397485510] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:29:34,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:29:34,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 23:29:34,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682572889] [2024-06-27 23:29:34,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:29:34,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 23:29:34,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:29:34,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 23:29:34,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-27 23:29:34,973 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2024-06-27 23:29:34,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 170 transitions, 1726 flow. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:29:34,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:29:34,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2024-06-27 23:29:34,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:29:38,397 INFO L124 PetriNetUnfolderBase]: 15488/20950 cut-off events. [2024-06-27 23:29:38,397 INFO L125 PetriNetUnfolderBase]: For 225345/225554 co-relation queries the response was YES. [2024-06-27 23:29:38,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103316 conditions, 20950 events. 15488/20950 cut-off events. For 225345/225554 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 108513 event pairs, 6733 based on Foata normal form. 58/20968 useless extension candidates. Maximal degree in co-relation 103263. Up to 19533 conditions per place. [2024-06-27 23:29:38,513 INFO L140 encePairwiseOnDemand]: 35/52 looper letters, 162 selfloop transitions, 123 changer transitions 0/290 dead transitions. [2024-06-27 23:29:38,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 290 transitions, 3400 flow [2024-06-27 23:29:38,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 23:29:38,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 23:29:38,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 215 transitions. [2024-06-27 23:29:38,515 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5168269230769231 [2024-06-27 23:29:38,515 INFO L175 Difference]: Start difference. First operand has 110 places, 170 transitions, 1726 flow. Second operand 8 states and 215 transitions. [2024-06-27 23:29:38,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 290 transitions, 3400 flow [2024-06-27 23:29:38,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 290 transitions, 3285 flow, removed 32 selfloop flow, removed 4 redundant places. [2024-06-27 23:29:38,671 INFO L231 Difference]: Finished difference. Result has 117 places, 223 transitions, 2530 flow [2024-06-27 23:29:38,671 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1648, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2530, PETRI_PLACES=117, PETRI_TRANSITIONS=223} [2024-06-27 23:29:38,672 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 62 predicate places. [2024-06-27 23:29:38,672 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 223 transitions, 2530 flow [2024-06-27 23:29:38,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:29:38,672 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:29:38,672 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:29:38,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-06-27 23:29:38,672 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)] === [2024-06-27 23:29:38,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:29:38,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1868359409, now seen corresponding path program 1 times [2024-06-27 23:29:38,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:29:38,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717854196] [2024-06-27 23:29:38,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:29:38,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:29:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:29:40,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:29:40,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:29:40,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717854196] [2024-06-27 23:29:40,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717854196] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:29:40,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:29:40,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 23:29:40,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878801626] [2024-06-27 23:29:40,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:29:40,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 23:29:40,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:29:40,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 23:29:40,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-27 23:29:41,042 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2024-06-27 23:29:41,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 223 transitions, 2530 flow. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:29:41,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:29:41,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2024-06-27 23:29:41,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:29:44,501 INFO L124 PetriNetUnfolderBase]: 15508/20987 cut-off events. [2024-06-27 23:29:44,501 INFO L125 PetriNetUnfolderBase]: For 282939/283123 co-relation queries the response was YES. [2024-06-27 23:29:44,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114322 conditions, 20987 events. 15508/20987 cut-off events. For 282939/283123 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 108551 event pairs, 6741 based on Foata normal form. 18/20962 useless extension candidates. Maximal degree in co-relation 114265. Up to 20708 conditions per place. [2024-06-27 23:29:44,726 INFO L140 encePairwiseOnDemand]: 39/52 looper letters, 222 selfloop transitions, 35 changer transitions 0/262 dead transitions. [2024-06-27 23:29:44,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 262 transitions, 3330 flow [2024-06-27 23:29:44,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 23:29:44,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 23:29:44,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 186 transitions. [2024-06-27 23:29:44,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44711538461538464 [2024-06-27 23:29:44,727 INFO L175 Difference]: Start difference. First operand has 117 places, 223 transitions, 2530 flow. Second operand 8 states and 186 transitions. [2024-06-27 23:29:44,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 262 transitions, 3330 flow [2024-06-27 23:29:45,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 262 transitions, 3260 flow, removed 34 selfloop flow, removed 1 redundant places. [2024-06-27 23:29:45,113 INFO L231 Difference]: Finished difference. Result has 124 places, 227 transitions, 2603 flow [2024-06-27 23:29:45,113 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=2464, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2603, PETRI_PLACES=124, PETRI_TRANSITIONS=227} [2024-06-27 23:29:45,113 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 69 predicate places. [2024-06-27 23:29:45,113 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 227 transitions, 2603 flow [2024-06-27 23:29:45,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:29:45,114 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:29:45,114 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:29:45,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-06-27 23:29:45,114 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)] === [2024-06-27 23:29:45,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:29:45,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1137705497, now seen corresponding path program 1 times [2024-06-27 23:29:45,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:29:45,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742523916] [2024-06-27 23:29:45,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:29:45,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:29:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:29:46,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:29:46,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:29:46,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742523916] [2024-06-27 23:29:46,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742523916] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:29:46,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:29:46,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 23:29:46,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637195203] [2024-06-27 23:29:46,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:29:46,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 23:29:46,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:29:46,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 23:29:46,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 23:29:47,032 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2024-06-27 23:29:47,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 227 transitions, 2603 flow. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:29:47,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:29:47,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2024-06-27 23:29:47,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:29:50,406 INFO L124 PetriNetUnfolderBase]: 15501/20976 cut-off events. [2024-06-27 23:29:50,406 INFO L125 PetriNetUnfolderBase]: For 299860/300003 co-relation queries the response was YES. [2024-06-27 23:29:50,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115626 conditions, 20976 events. 15501/20976 cut-off events. For 299860/300003 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 108625 event pairs, 6901 based on Foata normal form. 19/20955 useless extension candidates. Maximal degree in co-relation 115566. Up to 20867 conditions per place. [2024-06-27 23:29:50,556 INFO L140 encePairwiseOnDemand]: 42/52 looper letters, 223 selfloop transitions, 12 changer transitions 0/240 dead transitions. [2024-06-27 23:29:50,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 240 transitions, 3119 flow [2024-06-27 23:29:50,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 23:29:50,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 23:29:50,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 116 transitions. [2024-06-27 23:29:50,557 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4461538461538462 [2024-06-27 23:29:50,558 INFO L175 Difference]: Start difference. First operand has 124 places, 227 transitions, 2603 flow. Second operand 5 states and 116 transitions. [2024-06-27 23:29:50,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 240 transitions, 3119 flow [2024-06-27 23:29:50,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 240 transitions, 2972 flow, removed 40 selfloop flow, removed 6 redundant places. [2024-06-27 23:29:50,814 INFO L231 Difference]: Finished difference. Result has 123 places, 227 transitions, 2491 flow [2024-06-27 23:29:50,814 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=2456, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2491, PETRI_PLACES=123, PETRI_TRANSITIONS=227} [2024-06-27 23:29:50,814 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 68 predicate places. [2024-06-27 23:29:50,814 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 227 transitions, 2491 flow [2024-06-27 23:29:50,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:29:50,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:29:50,815 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:29:50,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-06-27 23:29:50,815 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)] === [2024-06-27 23:29:50,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:29:50,815 INFO L85 PathProgramCache]: Analyzing trace with hash 998916750, now seen corresponding path program 1 times [2024-06-27 23:29:50,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:29:50,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994213641] [2024-06-27 23:29:50,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:29:50,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:29:50,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:29:53,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:29:53,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:29:53,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994213641] [2024-06-27 23:29:53,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994213641] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:29:53,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:29:53,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 23:29:53,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383132478] [2024-06-27 23:29:53,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:29:53,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 23:29:53,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:29:53,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 23:29:53,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-06-27 23:29:53,166 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2024-06-27 23:29:53,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 227 transitions, 2491 flow. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:29:53,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:29:53,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2024-06-27 23:29:53,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:29:56,610 INFO L124 PetriNetUnfolderBase]: 15599/21123 cut-off events. [2024-06-27 23:29:56,610 INFO L125 PetriNetUnfolderBase]: For 322390/322657 co-relation queries the response was YES. [2024-06-27 23:29:56,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117342 conditions, 21123 events. 15599/21123 cut-off events. For 322390/322657 co-relation queries the response was YES. Maximal size of possible extension queue 645. Compared 109075 event pairs, 6713 based on Foata normal form. 56/21132 useless extension candidates. Maximal degree in co-relation 117281. Up to 20728 conditions per place. [2024-06-27 23:29:56,979 INFO L140 encePairwiseOnDemand]: 39/52 looper letters, 216 selfloop transitions, 54 changer transitions 0/275 dead transitions. [2024-06-27 23:29:56,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 275 transitions, 3396 flow [2024-06-27 23:29:56,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 23:29:56,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 23:29:56,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 173 transitions. [2024-06-27 23:29:56,981 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47527472527472525 [2024-06-27 23:29:56,981 INFO L175 Difference]: Start difference. First operand has 123 places, 227 transitions, 2491 flow. Second operand 7 states and 173 transitions. [2024-06-27 23:29:56,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 275 transitions, 3396 flow [2024-06-27 23:29:57,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 275 transitions, 3379 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 23:29:57,237 INFO L231 Difference]: Finished difference. Result has 128 places, 240 transitions, 2771 flow [2024-06-27 23:29:57,237 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=2474, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2771, PETRI_PLACES=128, PETRI_TRANSITIONS=240} [2024-06-27 23:29:57,237 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 73 predicate places. [2024-06-27 23:29:57,238 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 240 transitions, 2771 flow [2024-06-27 23:29:57,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:29:57,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:29:57,238 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:29:57,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-06-27 23:29:57,238 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)] === [2024-06-27 23:29:57,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:29:57,239 INFO L85 PathProgramCache]: Analyzing trace with hash 999006960, now seen corresponding path program 2 times [2024-06-27 23:29:57,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:29:57,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188425243] [2024-06-27 23:29:57,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:29:57,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:29:57,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:29:59,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:29:59,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:29:59,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188425243] [2024-06-27 23:29:59,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188425243] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:29:59,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:29:59,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 23:29:59,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073345329] [2024-06-27 23:29:59,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:29:59,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 23:29:59,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:29:59,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 23:29:59,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-06-27 23:29:59,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2024-06-27 23:29:59,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 240 transitions, 2771 flow. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:29:59,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:29:59,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2024-06-27 23:29:59,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:30:02,923 INFO L124 PetriNetUnfolderBase]: 15590/21113 cut-off events. [2024-06-27 23:30:02,924 INFO L125 PetriNetUnfolderBase]: For 364211/364436 co-relation queries the response was YES. [2024-06-27 23:30:02,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122105 conditions, 21113 events. 15590/21113 cut-off events. For 364211/364436 co-relation queries the response was YES. Maximal size of possible extension queue 645. Compared 109194 event pairs, 6707 based on Foata normal form. 54/21122 useless extension candidates. Maximal degree in co-relation 122041. Up to 20778 conditions per place. [2024-06-27 23:30:03,072 INFO L140 encePairwiseOnDemand]: 38/52 looper letters, 216 selfloop transitions, 51 changer transitions 0/272 dead transitions. [2024-06-27 23:30:03,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 272 transitions, 3434 flow [2024-06-27 23:30:03,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 23:30:03,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 23:30:03,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 169 transitions. [2024-06-27 23:30:03,075 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4642857142857143 [2024-06-27 23:30:03,075 INFO L175 Difference]: Start difference. First operand has 128 places, 240 transitions, 2771 flow. Second operand 7 states and 169 transitions. [2024-06-27 23:30:03,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 272 transitions, 3434 flow [2024-06-27 23:30:03,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 272 transitions, 3289 flow, removed 50 selfloop flow, removed 3 redundant places. [2024-06-27 23:30:03,512 INFO L231 Difference]: Finished difference. Result has 132 places, 240 transitions, 2741 flow [2024-06-27 23:30:03,512 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=2626, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2741, PETRI_PLACES=132, PETRI_TRANSITIONS=240} [2024-06-27 23:30:03,512 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 77 predicate places. [2024-06-27 23:30:03,512 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 240 transitions, 2741 flow [2024-06-27 23:30:03,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:30:03,513 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:30:03,513 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:30:03,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-06-27 23:30:03,513 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)] === [2024-06-27 23:30:03,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:30:03,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1766398569, now seen corresponding path program 1 times [2024-06-27 23:30:03,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:30:03,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297075962] [2024-06-27 23:30:03,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:30:03,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:30:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:30:05,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:30:05,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:30:05,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297075962] [2024-06-27 23:30:05,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297075962] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:30:05,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:30:05,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 23:30:05,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005179597] [2024-06-27 23:30:05,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:30:05,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 23:30:05,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:30:05,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 23:30:05,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-27 23:30:05,247 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2024-06-27 23:30:05,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 240 transitions, 2741 flow. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:30:05,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:30:05,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2024-06-27 23:30:05,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:30:08,854 INFO L124 PetriNetUnfolderBase]: 15672/21235 cut-off events. [2024-06-27 23:30:08,854 INFO L125 PetriNetUnfolderBase]: For 397416/397700 co-relation queries the response was YES. [2024-06-27 23:30:08,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124581 conditions, 21235 events. 15672/21235 cut-off events. For 397416/397700 co-relation queries the response was YES. Maximal size of possible extension queue 645. Compared 109896 event pairs, 6744 based on Foata normal form. 57/21235 useless extension candidates. Maximal degree in co-relation 124515. Up to 20055 conditions per place. [2024-06-27 23:30:09,006 INFO L140 encePairwiseOnDemand]: 37/52 looper letters, 181 selfloop transitions, 115 changer transitions 0/301 dead transitions. [2024-06-27 23:30:09,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 301 transitions, 4040 flow [2024-06-27 23:30:09,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 23:30:09,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 23:30:09,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 184 transitions. [2024-06-27 23:30:09,016 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5054945054945055 [2024-06-27 23:30:09,016 INFO L175 Difference]: Start difference. First operand has 132 places, 240 transitions, 2741 flow. Second operand 7 states and 184 transitions. [2024-06-27 23:30:09,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 301 transitions, 4040 flow [2024-06-27 23:30:09,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 301 transitions, 3937 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-06-27 23:30:09,452 INFO L231 Difference]: Finished difference. Result has 136 places, 258 transitions, 3272 flow [2024-06-27 23:30:09,452 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=2638, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3272, PETRI_PLACES=136, PETRI_TRANSITIONS=258} [2024-06-27 23:30:09,453 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 81 predicate places. [2024-06-27 23:30:09,453 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 258 transitions, 3272 flow [2024-06-27 23:30:09,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:30:09,453 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:30:09,453 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:30:09,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-06-27 23:30:09,453 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)] === [2024-06-27 23:30:09,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:30:09,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1766404366, now seen corresponding path program 1 times [2024-06-27 23:30:09,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:30:09,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590663449] [2024-06-27 23:30:09,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:30:09,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:30:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:30:11,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:30:11,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:30:11,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590663449] [2024-06-27 23:30:11,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590663449] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:30:11,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:30:11,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 23:30:11,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719507759] [2024-06-27 23:30:11,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:30:11,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 23:30:11,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:30:11,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 23:30:11,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-06-27 23:30:11,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2024-06-27 23:30:11,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 258 transitions, 3272 flow. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 23:30:11,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:30:11,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2024-06-27 23:30:11,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand