./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix014.opt.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix014.opt.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/mix014.opt.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix014.opt.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 22:09:55,668 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 22:09:55,739 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 22:09:55,744 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 22:09:55,744 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 22:09:55,773 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 22:09:55,774 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 22:09:55,774 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 22:09:55,775 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 22:09:55,778 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 22:09:55,778 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 22:09:55,778 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 22:09:55,779 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 22:09:55,780 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 22:09:55,780 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 22:09:55,781 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 22:09:55,781 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 22:09:55,781 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 22:09:55,781 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 22:09:55,781 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 22:09:55,782 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 22:09:55,782 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 22:09:55,782 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 22:09:55,782 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 22:09:55,783 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 22:09:55,783 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 22:09:55,783 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 22:09:55,783 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 22:09:55,784 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 22:09:55,784 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 22:09:55,785 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 22:09:55,785 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 22:09:55,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 22:09:55,785 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 22:09:55,785 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 22:09:55,786 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 22:09:55,786 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 22:09:55,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 22:09:55,786 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 22:09:55,786 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 22:09:55,787 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 22:09:55,787 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 22:09:55,787 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 22:09:55,787 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-27 22:09:55,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 22:09:55,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 22:09:55,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 22:09:55,997 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 22:09:55,997 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 22:09:55,998 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix014.opt.i [2024-06-27 22:09:56,980 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 22:09:57,229 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 22:09:57,229 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix014.opt.i [2024-06-27 22:09:57,241 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51fe58f53/f6456e9b3e9a45579ac83866e312fa84/FLAGdc9cce5f0 [2024-06-27 22:09:57,251 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51fe58f53/f6456e9b3e9a45579ac83866e312fa84 [2024-06-27 22:09:57,253 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 22:09:57,254 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 22:09:57,254 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix014.opt.yml/witness.yml [2024-06-27 22:09:57,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 22:09:57,311 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 22:09:57,312 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 22:09:57,312 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 22:09:57,321 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 22:09:57,321 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 10:09:57" (1/2) ... [2024-06-27 22:09:57,322 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2734791e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:09:57, skipping insertion in model container [2024-06-27 22:09:57,322 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 10:09:57" (1/2) ... [2024-06-27 22:09:57,324 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4407c79c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:09:57, skipping insertion in model container [2024-06-27 22:09:57,325 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 10:09:57" (2/2) ... [2024-06-27 22:09:57,325 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2734791e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:09:57, skipping insertion in model container [2024-06-27 22:09:57,325 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 10:09:57" (2/2) ... [2024-06-27 22:09:57,326 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 22:09:57,353 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 22:09:57,354 INFO L97 edCorrectnessWitness]: Location invariant before [L872-L872] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p1_EBX) + (long long )y >= 0LL && (0LL - (long long )__unbuffered_p2_EAX) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )__unbuffered_p3_EAX) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )a >= 0LL) && (0LL - (long long )z) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$mem_tmp) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd4) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd4) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd4) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff0_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff1_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p1_EBX) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p3_EAX) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$read_delayed >= 0LL) && (2LL - (long long )__unbuffered_p3_EBX) - (long long )a >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff0_used >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1 >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1_used >= 0LL) && (long long )z$w_buff1 - (long long )z$w_buff1_used >= 0LL) [2024-06-27 22:09:57,355 INFO L97 edCorrectnessWitness]: Location invariant before [L874-L874] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p1_EBX) + (long long )y >= 0LL && (0LL - (long long )__unbuffered_p2_EAX) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )__unbuffered_p3_EAX) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )a >= 0LL) && (0LL - (long long )z) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$mem_tmp) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd4) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd4) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd4) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff0_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff1_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p1_EBX) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p3_EAX) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$read_delayed >= 0LL) && (2LL - (long long )__unbuffered_p3_EBX) - (long long )a >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff0_used >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1 >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1_used >= 0LL) && (long long )z$w_buff1 - (long long )z$w_buff1_used >= 0LL) [2024-06-27 22:09:57,355 INFO L97 edCorrectnessWitness]: Location invariant before [L877-L877] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p1_EBX) + (long long )y >= 0LL && (0LL - (long long )__unbuffered_p2_EAX) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )__unbuffered_p3_EAX) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )a >= 0LL) && (0LL - (long long )z) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$mem_tmp) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd4) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd4) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd4) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff0_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff1_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p1_EBX) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p3_EAX) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$read_delayed >= 0LL) && (2LL - (long long )__unbuffered_p3_EBX) - (long long )a >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff0_used >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1 >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1_used >= 0LL) && (long long )z$w_buff1 - (long long )z$w_buff1_used >= 0LL) [2024-06-27 22:09:57,355 INFO L97 edCorrectnessWitness]: Location invariant before [L876-L876] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p1_EBX) + (long long )y >= 0LL && (0LL - (long long )__unbuffered_p2_EAX) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )__unbuffered_p3_EAX) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )a >= 0LL) && (0LL - (long long )z) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$mem_tmp) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd4) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd4) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd4) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff0_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff1_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p1_EBX) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p3_EAX) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$read_delayed >= 0LL) && (2LL - (long long )__unbuffered_p3_EBX) - (long long )a >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff0_used >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1 >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1_used >= 0LL) && (long long )z$w_buff1 - (long long )z$w_buff1_used >= 0LL) [2024-06-27 22:09:57,355 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 22:09:57,356 INFO L106 edCorrectnessWitness]: ghost_update [L870-L870] multithreaded = 1; [2024-06-27 22:09:57,393 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 22:09:57,502 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix014.opt.i[944,957] [2024-06-27 22:09:57,650 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 22:09:57,658 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-06-27 22:09:57,689 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix014.opt.i[944,957] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 22:09:57,804 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 22:09:57,856 INFO L206 MainTranslator]: Completed translation [2024-06-27 22:09:57,857 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:09:57 WrapperNode [2024-06-27 22:09:57,857 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 22:09:57,858 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 22:09:57,858 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 22:09:57,858 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 22:09:57,864 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 10:09:57" (1/1) ... [2024-06-27 22:09:57,886 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 10:09:57" (1/1) ... [2024-06-27 22:09:57,931 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 158 [2024-06-27 22:09:57,932 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 22:09:57,932 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 22:09:57,932 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 22:09:57,933 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 22:09:57,941 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 10:09:57" (1/1) ... [2024-06-27 22:09:57,941 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 10:09:57" (1/1) ... [2024-06-27 22:09:57,946 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 10:09:57" (1/1) ... [2024-06-27 22:09:57,971 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 22:09:57,975 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 10:09:57" (1/1) ... [2024-06-27 22:09:57,976 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 10:09:57" (1/1) ... [2024-06-27 22:09:57,991 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 10:09:57" (1/1) ... [2024-06-27 22:09:58,002 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 10:09:57" (1/1) ... [2024-06-27 22:09:58,004 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 10:09:57" (1/1) ... [2024-06-27 22:09:58,013 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 10:09:57" (1/1) ... [2024-06-27 22:09:58,019 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 22:09:58,023 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 22:09:58,023 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 22:09:58,024 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 22:09:58,025 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 10:09:57" (1/1) ... [2024-06-27 22:09:58,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 22:09:58,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 22:09:58,061 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 22:09:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 22:09:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 22:09:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-27 22:09:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-27 22:09:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-27 22:09:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-27 22:09:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-27 22:09:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-27 22:09:58,171 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 22:09:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-06-27 22:09:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-06-27 22:09:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 22:09:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 22:09:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 22:09:58,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 22:09:58,179 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 22:09:58,288 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 22:09:58,290 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 22:09:58,680 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 22:09:58,681 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 22:09:58,859 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 22:09:58,860 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 22:09:58,860 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 10:09:58 BoogieIcfgContainer [2024-06-27 22:09:58,860 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 22:09:58,862 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 22:09:58,862 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 22:09:58,864 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 22:09:58,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 10:09:57" (1/4) ... [2024-06-27 22:09:58,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@579a24ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 10:09:58, skipping insertion in model container [2024-06-27 22:09:58,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 10:09:57" (2/4) ... [2024-06-27 22:09:58,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@579a24ff and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 10:09:58, skipping insertion in model container [2024-06-27 22:09:58,865 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 10:09:57" (3/4) ... [2024-06-27 22:09:58,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@579a24ff and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 10:09:58, skipping insertion in model container [2024-06-27 22:09:58,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 10:09:58" (4/4) ... [2024-06-27 22:09:58,867 INFO L112 eAbstractionObserver]: Analyzing ICFG mix014.opt.i [2024-06-27 22:09:58,881 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 22:09:58,881 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-06-27 22:09:58,881 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 22:09:58,930 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 22:09:58,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 59 transitions, 134 flow [2024-06-27 22:09:58,990 INFO L124 PetriNetUnfolderBase]: 1/55 cut-off events. [2024-06-27 22:09:58,990 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 22:09:58,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 55 events. 1/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 101 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2024-06-27 22:09:58,993 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 59 transitions, 134 flow [2024-06-27 22:09:58,997 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 55 transitions, 122 flow [2024-06-27 22:09:59,006 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 22:09:59,014 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;@166a14d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 22:09:59,014 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-06-27 22:09:59,018 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 22:09:59,018 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-27 22:09:59,018 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 22:09:59,018 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:09:59,018 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 22:09:59,019 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:09:59,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:09:59,023 INFO L85 PathProgramCache]: Analyzing trace with hash 402974639, now seen corresponding path program 1 times [2024-06-27 22:09:59,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:09:59,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381922478] [2024-06-27 22:09:59,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:09:59,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:09:59,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:10:00,337 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 22:10:00,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:10:00,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381922478] [2024-06-27 22:10:00,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381922478] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:10:00,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:10:00,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 22:10:00,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841015032] [2024-06-27 22:10:00,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:10:00,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 22:10:00,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:10:00,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 22:10:00,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 22:10:00,440 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 59 [2024-06-27 22:10:00,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 55 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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 22:10:00,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:10:00,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 59 [2024-06-27 22:10:00,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:10:03,164 INFO L124 PetriNetUnfolderBase]: 18304/27403 cut-off events. [2024-06-27 22:10:03,165 INFO L125 PetriNetUnfolderBase]: For 123/123 co-relation queries the response was YES. [2024-06-27 22:10:03,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52055 conditions, 27403 events. 18304/27403 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 1204. Compared 198610 event pairs, 15606 based on Foata normal form. 700/26365 useless extension candidates. Maximal degree in co-relation 52042. Up to 24379 conditions per place. [2024-06-27 22:10:03,421 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 51 selfloop transitions, 5 changer transitions 0/72 dead transitions. [2024-06-27 22:10:03,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 72 transitions, 277 flow [2024-06-27 22:10:03,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 22:10:03,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 22:10:03,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 123 transitions. [2024-06-27 22:10:03,431 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6949152542372882 [2024-06-27 22:10:03,433 INFO L175 Difference]: Start difference. First operand has 67 places, 55 transitions, 122 flow. Second operand 3 states and 123 transitions. [2024-06-27 22:10:03,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 72 transitions, 277 flow [2024-06-27 22:10:03,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 72 transitions, 270 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-27 22:10:03,441 INFO L231 Difference]: Finished difference. Result has 66 places, 58 transitions, 157 flow [2024-06-27 22:10:03,442 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=157, PETRI_PLACES=66, PETRI_TRANSITIONS=58} [2024-06-27 22:10:03,445 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -1 predicate places. [2024-06-27 22:10:03,445 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 58 transitions, 157 flow [2024-06-27 22:10:03,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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 22:10:03,446 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:10:03,446 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:10:03,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 22:10:03,446 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:10:03,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:10:03,447 INFO L85 PathProgramCache]: Analyzing trace with hash 711629902, now seen corresponding path program 1 times [2024-06-27 22:10:03,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:10:03,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525997988] [2024-06-27 22:10:03,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:10:03,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:10:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:10:04,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 22:10:04,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:10:04,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525997988] [2024-06-27 22:10:04,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525997988] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:10:04,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:10:04,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 22:10:04,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290720254] [2024-06-27 22:10:04,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:10:04,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 22:10:04,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:10:04,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 22:10:04,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 22:10:04,481 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 59 [2024-06-27 22:10:04,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 58 transitions, 157 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 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 22:10:04,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:10:04,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 59 [2024-06-27 22:10:04,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:10:07,120 INFO L124 PetriNetUnfolderBase]: 18267/27349 cut-off events. [2024-06-27 22:10:07,121 INFO L125 PetriNetUnfolderBase]: For 4528/4528 co-relation queries the response was YES. [2024-06-27 22:10:07,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58184 conditions, 27349 events. 18267/27349 cut-off events. For 4528/4528 co-relation queries the response was YES. Maximal size of possible extension queue 1205. Compared 196581 event pairs, 14036 based on Foata normal form. 4/25765 useless extension candidates. Maximal degree in co-relation 58172. Up to 24302 conditions per place. [2024-06-27 22:10:07,274 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 65 selfloop transitions, 9 changer transitions 0/90 dead transitions. [2024-06-27 22:10:07,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 90 transitions, 387 flow [2024-06-27 22:10:07,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 22:10:07,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 22:10:07,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 159 transitions. [2024-06-27 22:10:07,276 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.673728813559322 [2024-06-27 22:10:07,276 INFO L175 Difference]: Start difference. First operand has 66 places, 58 transitions, 157 flow. Second operand 4 states and 159 transitions. [2024-06-27 22:10:07,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 90 transitions, 387 flow [2024-06-27 22:10:07,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 90 transitions, 382 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 22:10:07,279 INFO L231 Difference]: Finished difference. Result has 69 places, 62 transitions, 207 flow [2024-06-27 22:10:07,279 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=207, PETRI_PLACES=69, PETRI_TRANSITIONS=62} [2024-06-27 22:10:07,280 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 2 predicate places. [2024-06-27 22:10:07,280 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 62 transitions, 207 flow [2024-06-27 22:10:07,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 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 22:10:07,280 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:10:07,280 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:10:07,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 22:10:07,281 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:10:07,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:10:07,281 INFO L85 PathProgramCache]: Analyzing trace with hash 585692370, now seen corresponding path program 1 times [2024-06-27 22:10:07,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:10:07,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419155710] [2024-06-27 22:10:07,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:10:07,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:10:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:10:08,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 22:10:08,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:10:08,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419155710] [2024-06-27 22:10:08,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419155710] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:10:08,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:10:08,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 22:10:08,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536097373] [2024-06-27 22:10:08,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:10:08,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 22:10:08,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:10:08,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 22:10:08,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-27 22:10:08,411 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 59 [2024-06-27 22:10:08,411 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 62 transitions, 207 flow. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:10:08,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:10:08,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 59 [2024-06-27 22:10:08,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:10:11,141 INFO L124 PetriNetUnfolderBase]: 23154/34500 cut-off events. [2024-06-27 22:10:11,142 INFO L125 PetriNetUnfolderBase]: For 14969/14969 co-relation queries the response was YES. [2024-06-27 22:10:11,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80232 conditions, 34500 events. 23154/34500 cut-off events. For 14969/14969 co-relation queries the response was YES. Maximal size of possible extension queue 1362. Compared 247715 event pairs, 15021 based on Foata normal form. 7/32620 useless extension candidates. Maximal degree in co-relation 80218. Up to 30544 conditions per place. [2024-06-27 22:10:11,322 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 88 selfloop transitions, 21 changer transitions 0/124 dead transitions. [2024-06-27 22:10:11,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 124 transitions, 623 flow [2024-06-27 22:10:11,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 22:10:11,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 22:10:11,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 205 transitions. [2024-06-27 22:10:11,324 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6949152542372882 [2024-06-27 22:10:11,324 INFO L175 Difference]: Start difference. First operand has 69 places, 62 transitions, 207 flow. Second operand 5 states and 205 transitions. [2024-06-27 22:10:11,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 124 transitions, 623 flow [2024-06-27 22:10:11,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 124 transitions, 604 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-06-27 22:10:11,329 INFO L231 Difference]: Finished difference. Result has 74 places, 76 transitions, 344 flow [2024-06-27 22:10:11,329 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=344, PETRI_PLACES=74, PETRI_TRANSITIONS=76} [2024-06-27 22:10:11,330 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 7 predicate places. [2024-06-27 22:10:11,330 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 76 transitions, 344 flow [2024-06-27 22:10:11,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:10:11,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:10:11,331 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:10:11,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 22:10:11,331 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:10:11,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:10:11,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1922705125, now seen corresponding path program 1 times [2024-06-27 22:10:11,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:10:11,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584507813] [2024-06-27 22:10:11,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:10:11,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:10:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:10:12,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 22:10:12,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:10:12,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584507813] [2024-06-27 22:10:12,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584507813] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:10:12,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:10:12,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 22:10:12,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726331606] [2024-06-27 22:10:12,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:10:12,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 22:10:12,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:10:12,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 22:10:12,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 22:10:13,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 59 [2024-06-27 22:10:13,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 76 transitions, 344 flow. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states 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 22:10:13,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:10:13,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 59 [2024-06-27 22:10:13,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:10:16,007 INFO L124 PetriNetUnfolderBase]: 23164/34502 cut-off events. [2024-06-27 22:10:16,007 INFO L125 PetriNetUnfolderBase]: For 46882/46890 co-relation queries the response was YES. [2024-06-27 22:10:16,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93870 conditions, 34502 events. 23164/34502 cut-off events. For 46882/46890 co-relation queries the response was YES. Maximal size of possible extension queue 1362. Compared 247639 event pairs, 12800 based on Foata normal form. 45/33497 useless extension candidates. Maximal degree in co-relation 93853. Up to 30452 conditions per place. [2024-06-27 22:10:16,261 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 99 selfloop transitions, 25 changer transitions 0/139 dead transitions. [2024-06-27 22:10:16,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 139 transitions, 790 flow [2024-06-27 22:10:16,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 22:10:16,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 22:10:16,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 237 transitions. [2024-06-27 22:10:16,263 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6694915254237288 [2024-06-27 22:10:16,263 INFO L175 Difference]: Start difference. First operand has 74 places, 76 transitions, 344 flow. Second operand 6 states and 237 transitions. [2024-06-27 22:10:16,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 139 transitions, 790 flow [2024-06-27 22:10:16,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 139 transitions, 778 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-06-27 22:10:16,278 INFO L231 Difference]: Finished difference. Result has 79 places, 79 transitions, 423 flow [2024-06-27 22:10:16,278 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=423, PETRI_PLACES=79, PETRI_TRANSITIONS=79} [2024-06-27 22:10:16,280 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 12 predicate places. [2024-06-27 22:10:16,280 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 79 transitions, 423 flow [2024-06-27 22:10:16,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states 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 22:10:16,280 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:10:16,280 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:10:16,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 22:10:16,281 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:10:16,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:10:16,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1078476456, now seen corresponding path program 1 times [2024-06-27 22:10:16,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:10:16,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497456861] [2024-06-27 22:10:16,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:10:16,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:10:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:10:17,316 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 22:10:17,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:10:17,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497456861] [2024-06-27 22:10:17,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497456861] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:10:17,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:10:17,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 22:10:17,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806738691] [2024-06-27 22:10:17,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:10:17,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 22:10:17,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:10:17,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 22:10:17,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 22:10:17,394 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 59 [2024-06-27 22:10:17,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 79 transitions, 423 flow. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:10:17,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:10:17,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 59 [2024-06-27 22:10:17,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:10:21,063 INFO L124 PetriNetUnfolderBase]: 26410/38840 cut-off events. [2024-06-27 22:10:21,064 INFO L125 PetriNetUnfolderBase]: For 75710/75710 co-relation queries the response was YES. [2024-06-27 22:10:21,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114022 conditions, 38840 events. 26410/38840 cut-off events. For 75710/75710 co-relation queries the response was YES. Maximal size of possible extension queue 1464. Compared 277342 event pairs, 14900 based on Foata normal form. 3/37766 useless extension candidates. Maximal degree in co-relation 114001. Up to 34951 conditions per place. [2024-06-27 22:10:21,713 INFO L140 encePairwiseOnDemand]: 47/59 looper letters, 80 selfloop transitions, 22 changer transitions 0/115 dead transitions. [2024-06-27 22:10:21,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 115 transitions, 776 flow [2024-06-27 22:10:21,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 22:10:21,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 22:10:21,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 206 transitions. [2024-06-27 22:10:21,715 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49878934624697335 [2024-06-27 22:10:21,715 INFO L175 Difference]: Start difference. First operand has 79 places, 79 transitions, 423 flow. Second operand 7 states and 206 transitions. [2024-06-27 22:10:21,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 115 transitions, 776 flow [2024-06-27 22:10:21,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 115 transitions, 687 flow, removed 14 selfloop flow, removed 4 redundant places. [2024-06-27 22:10:21,731 INFO L231 Difference]: Finished difference. Result has 83 places, 91 transitions, 490 flow [2024-06-27 22:10:21,731 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=490, PETRI_PLACES=83, PETRI_TRANSITIONS=91} [2024-06-27 22:10:21,732 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 16 predicate places. [2024-06-27 22:10:21,732 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 91 transitions, 490 flow [2024-06-27 22:10:21,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:10:21,732 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:10:21,733 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:10:21,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 22:10:21,733 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:10:21,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:10:21,733 INFO L85 PathProgramCache]: Analyzing trace with hash 926047836, now seen corresponding path program 1 times [2024-06-27 22:10:21,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:10:21,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258182534] [2024-06-27 22:10:21,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:10:21,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:10:21,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:10:23,147 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 22:10:23,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:10:23,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258182534] [2024-06-27 22:10:23,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258182534] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:10:23,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:10:23,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 22:10:23,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902730510] [2024-06-27 22:10:23,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:10:23,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 22:10:23,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:10:23,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 22:10:23,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 22:10:23,219 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 59 [2024-06-27 22:10:23,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 91 transitions, 490 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:10:23,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:10:23,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 59 [2024-06-27 22:10:23,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:10:27,372 INFO L124 PetriNetUnfolderBase]: 26397/38788 cut-off events. [2024-06-27 22:10:27,375 INFO L125 PetriNetUnfolderBase]: For 79847/79847 co-relation queries the response was YES. [2024-06-27 22:10:27,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115395 conditions, 38788 events. 26397/38788 cut-off events. For 79847/79847 co-relation queries the response was YES. Maximal size of possible extension queue 1468. Compared 276590 event pairs, 14433 based on Foata normal form. 4/37775 useless extension candidates. Maximal degree in co-relation 115370. Up to 34896 conditions per place. [2024-06-27 22:10:27,691 INFO L140 encePairwiseOnDemand]: 45/59 looper letters, 96 selfloop transitions, 32 changer transitions 0/141 dead transitions. [2024-06-27 22:10:27,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 141 transitions, 928 flow [2024-06-27 22:10:27,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-27 22:10:27,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-27 22:10:27,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 267 transitions. [2024-06-27 22:10:27,694 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5028248587570622 [2024-06-27 22:10:27,694 INFO L175 Difference]: Start difference. First operand has 83 places, 91 transitions, 490 flow. Second operand 9 states and 267 transitions. [2024-06-27 22:10:27,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 141 transitions, 928 flow [2024-06-27 22:10:27,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 141 transitions, 896 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-06-27 22:10:27,722 INFO L231 Difference]: Finished difference. Result has 91 places, 101 transitions, 632 flow [2024-06-27 22:10:27,723 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=632, PETRI_PLACES=91, PETRI_TRANSITIONS=101} [2024-06-27 22:10:27,726 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 24 predicate places. [2024-06-27 22:10:27,726 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 101 transitions, 632 flow [2024-06-27 22:10:27,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:10:27,726 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:10:27,726 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:10:27,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 22:10:27,727 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:10:27,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:10:27,727 INFO L85 PathProgramCache]: Analyzing trace with hash 2073084949, now seen corresponding path program 1 times [2024-06-27 22:10:27,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:10:27,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923276985] [2024-06-27 22:10:27,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:10:27,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:10:27,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:10:29,225 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 22:10:29,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:10:29,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923276985] [2024-06-27 22:10:29,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923276985] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:10:29,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:10:29,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 22:10:29,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342015371] [2024-06-27 22:10:29,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:10:29,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 22:10:29,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:10:29,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 22:10:29,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 22:10:29,368 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 59 [2024-06-27 22:10:29,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 101 transitions, 632 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:10:29,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:10:29,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 59 [2024-06-27 22:10:29,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:10:33,799 INFO L124 PetriNetUnfolderBase]: 26666/39148 cut-off events. [2024-06-27 22:10:33,800 INFO L125 PetriNetUnfolderBase]: For 115644/115657 co-relation queries the response was YES. [2024-06-27 22:10:33,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126954 conditions, 39148 events. 26666/39148 cut-off events. For 115644/115657 co-relation queries the response was YES. Maximal size of possible extension queue 1456. Compared 278648 event pairs, 14773 based on Foata normal form. 13/38120 useless extension candidates. Maximal degree in co-relation 126925. Up to 34984 conditions per place. [2024-06-27 22:10:34,073 INFO L140 encePairwiseOnDemand]: 45/59 looper letters, 110 selfloop transitions, 76 changer transitions 0/199 dead transitions. [2024-06-27 22:10:34,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 199 transitions, 1549 flow [2024-06-27 22:10:34,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-27 22:10:34,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-27 22:10:34,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 281 transitions. [2024-06-27 22:10:34,076 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5291902071563088 [2024-06-27 22:10:34,076 INFO L175 Difference]: Start difference. First operand has 91 places, 101 transitions, 632 flow. Second operand 9 states and 281 transitions. [2024-06-27 22:10:34,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 199 transitions, 1549 flow [2024-06-27 22:10:34,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 199 transitions, 1495 flow, removed 13 selfloop flow, removed 5 redundant places. [2024-06-27 22:10:34,118 INFO L231 Difference]: Finished difference. Result has 99 places, 148 transitions, 1107 flow [2024-06-27 22:10:34,118 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1107, PETRI_PLACES=99, PETRI_TRANSITIONS=148} [2024-06-27 22:10:34,119 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 32 predicate places. [2024-06-27 22:10:34,119 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 148 transitions, 1107 flow [2024-06-27 22:10:34,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:10:34,119 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:10:34,119 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:10:34,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 22:10:34,120 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:10:34,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:10:34,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1328694537, now seen corresponding path program 2 times [2024-06-27 22:10:34,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:10:34,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379840367] [2024-06-27 22:10:34,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:10:34,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:10:34,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:10:35,600 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 22:10:35,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:10:35,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379840367] [2024-06-27 22:10:35,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379840367] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:10:35,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:10:35,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 22:10:35,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093639795] [2024-06-27 22:10:35,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:10:35,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 22:10:35,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:10:35,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 22:10:35,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 22:10:35,747 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 59 [2024-06-27 22:10:35,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 148 transitions, 1107 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:10:35,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:10:35,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 59 [2024-06-27 22:10:35,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:10:40,693 INFO L124 PetriNetUnfolderBase]: 26651/39105 cut-off events. [2024-06-27 22:10:40,693 INFO L125 PetriNetUnfolderBase]: For 127328/127332 co-relation queries the response was YES. [2024-06-27 22:10:40,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129718 conditions, 39105 events. 26651/39105 cut-off events. For 127328/127332 co-relation queries the response was YES. Maximal size of possible extension queue 1456. Compared 277904 event pairs, 14775 based on Foata normal form. 5/38066 useless extension candidates. Maximal degree in co-relation 129682. Up to 34969 conditions per place. [2024-06-27 22:10:41,308 INFO L140 encePairwiseOnDemand]: 45/59 looper letters, 96 selfloop transitions, 86 changer transitions 0/195 dead transitions. [2024-06-27 22:10:41,308 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 195 transitions, 1693 flow [2024-06-27 22:10:41,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-27 22:10:41,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-27 22:10:41,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 275 transitions. [2024-06-27 22:10:41,312 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5178907721280602 [2024-06-27 22:10:41,312 INFO L175 Difference]: Start difference. First operand has 99 places, 148 transitions, 1107 flow. Second operand 9 states and 275 transitions. [2024-06-27 22:10:41,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 195 transitions, 1693 flow [2024-06-27 22:10:41,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 195 transitions, 1659 flow, removed 17 selfloop flow, removed 0 redundant places. [2024-06-27 22:10:41,428 INFO L231 Difference]: Finished difference. Result has 108 places, 155 transitions, 1331 flow [2024-06-27 22:10:41,429 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=1077, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1331, PETRI_PLACES=108, PETRI_TRANSITIONS=155} [2024-06-27 22:10:41,429 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 41 predicate places. [2024-06-27 22:10:41,429 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 155 transitions, 1331 flow [2024-06-27 22:10:41,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:10:41,430 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:10:41,430 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:10:41,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 22:10:41,430 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:10:41,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:10:41,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1954812663, now seen corresponding path program 3 times [2024-06-27 22:10:41,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:10:41,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51961854] [2024-06-27 22:10:41,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:10:41,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:10:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:10:42,421 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 22:10:42,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:10:42,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51961854] [2024-06-27 22:10:42,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51961854] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:10:42,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:10:42,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 22:10:42,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013123388] [2024-06-27 22:10:42,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:10:42,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 22:10:42,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:10:42,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 22:10:42,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-27 22:10:42,514 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 59 [2024-06-27 22:10:42,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 155 transitions, 1331 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 22:10:42,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:10:42,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 59 [2024-06-27 22:10:42,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand