./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix039.opt.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/mix039.opt.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 958ec4d9 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/mix039.opt.i ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/mix039.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-dev-958ec4d-m [2024-02-07 14:49:00,717 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 14:49:00,779 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 14:49:00,790 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 14:49:00,791 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 14:49:00,824 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 14:49:00,825 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 14:49:00,825 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 14:49:00,826 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 14:49:00,829 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 14:49:00,829 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 14:49:00,829 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 14:49:00,830 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 14:49:00,831 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 14:49:00,831 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 14:49:00,831 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 14:49:00,831 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 14:49:00,832 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 14:49:00,832 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 14:49:00,832 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 14:49:00,832 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 14:49:00,833 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 14:49:00,833 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 14:49:00,833 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 14:49:00,833 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 14:49:00,833 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 14:49:00,834 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 14:49:00,834 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 14:49:00,834 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 14:49:00,834 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 14:49:00,835 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 14:49:00,835 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 14:49:00,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:49:00,836 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 14:49:00,836 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 14:49:00,836 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 14:49:00,836 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 14:49:00,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 14:49:00,837 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 14:49:00,837 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 14:49:00,837 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 14:49:00,838 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 14:49:00,838 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 14:49:00,838 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 14:49:01,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 14:49:01,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 14:49:01,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 14:49:01,102 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 14:49:01,102 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 14:49:01,103 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix039.opt.i [2024-02-07 14:49:02,098 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 14:49:02,317 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 14:49:02,317 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix039.opt.i [2024-02-07 14:49:02,335 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/900d35613/2697225d31924005a7b7c76f89e5a953/FLAG449123e5f [2024-02-07 14:49:02,347 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/900d35613/2697225d31924005a7b7c76f89e5a953 [2024-02-07 14:49:02,350 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 14:49:02,350 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 14:49:02,354 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/mix039.opt.yml/witness.yml [2024-02-07 14:49:02,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 14:49:02,480 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 14:49:02,482 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 14:49:02,482 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 14:49:02,485 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 14:49:02,486 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:49:02" (1/2) ... [2024-02-07 14:49:02,487 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3453fe1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:49:02, skipping insertion in model container [2024-02-07 14:49:02,487 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:49:02" (1/2) ... [2024-02-07 14:49:02,488 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@18bcca95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:49:02, skipping insertion in model container [2024-02-07 14:49:02,488 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:49:02" (2/2) ... [2024-02-07 14:49:02,489 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3453fe1a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:02, skipping insertion in model container [2024-02-07 14:49:02,489 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:49:02" (2/2) ... [2024-02-07 14:49:02,489 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 14:49:02,590 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 14:49:02,592 INFO L76 edCorrectnessWitness]: Location invariant before [L794-L794] ((((z$r_buff1_thd3 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && z$w_buff1_used == (_Bool)1) || z$r_buff0_thd3 == (_Bool)0) || (((z$r_buff0_thd3 == (_Bool)0 && z$r_buff1_thd3 == (_Bool)0) && z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd3 == (_Bool)0 && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 14:49:02,592 INFO L76 edCorrectnessWitness]: Location invariant before [L874-L874] z$r_buff1_thd0 == (_Bool)0 [2024-02-07 14:49:02,592 INFO L76 edCorrectnessWitness]: Location invariant before [L822-L822] z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1 [2024-02-07 14:49:02,592 INFO L76 edCorrectnessWitness]: Location invariant before [L839-L839] z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1 [2024-02-07 14:49:02,593 INFO L76 edCorrectnessWitness]: Location invariant before [L835-L835] (z$w_buff0_used == (_Bool)1) && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) [2024-02-07 14:49:02,593 INFO L76 edCorrectnessWitness]: Location invariant before [L841-L841] 0 <= __unbuffered_cnt [2024-02-07 14:49:02,593 INFO L76 edCorrectnessWitness]: Location invariant before [L762-L762] 0 <= __unbuffered_cnt [2024-02-07 14:49:02,593 INFO L76 edCorrectnessWitness]: Location invariant before [L795-L795] ((((z$r_buff1_thd3 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && z$w_buff1_used == (_Bool)1) || z$r_buff0_thd3 == (_Bool)0) || (((z$r_buff0_thd3 == (_Bool)0 && z$r_buff1_thd3 == (_Bool)0) && z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd3 == (_Bool)0 && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 14:49:02,594 INFO L76 edCorrectnessWitness]: Location invariant before [L828-L828] ((0 <= a) && (a <= 1)) && (a == 0 || a == 1) [2024-02-07 14:49:02,594 INFO L76 edCorrectnessWitness]: Location invariant before [L867-L867] main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1 [2024-02-07 14:49:02,594 INFO L76 edCorrectnessWitness]: Location invariant before [L793-L793] ((((z$r_buff1_thd3 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && z$w_buff1_used == (_Bool)1) || z$r_buff0_thd3 == (_Bool)0) || (((z$r_buff0_thd3 == (_Bool)0 && z$r_buff1_thd3 == (_Bool)0) && z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd3 == (_Bool)0 && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 14:49:02,594 INFO L76 edCorrectnessWitness]: Location invariant before [L815-L815] z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1 [2024-02-07 14:49:02,594 INFO L76 edCorrectnessWitness]: Location invariant before [L755-L755] b == 1 [2024-02-07 14:49:02,594 INFO L76 edCorrectnessWitness]: Location invariant before [L819-L819] (z$r_buff0_thd2 == (_Bool)0) && (z$r_buff1_thd1 == (_Bool)0) [2024-02-07 14:49:02,594 INFO L76 edCorrectnessWitness]: Location invariant before [L831-L831] ((0 <= b) && (b <= 1)) && (b == 0 || b == 1) [2024-02-07 14:49:02,595 INFO L76 edCorrectnessWitness]: Location invariant before [L763-L763] 1 <= __unbuffered_cnt [2024-02-07 14:49:02,595 INFO L76 edCorrectnessWitness]: Location invariant before [L800-L800] ((0 <= z) && (z <= 1)) && (z == 0 || z == 1) [2024-02-07 14:49:02,595 INFO L76 edCorrectnessWitness]: Location invariant before [L829-L829] ((0 <= __unbuffered_p3_EAX) && (__unbuffered_p3_EAX <= 1)) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1) [2024-02-07 14:49:02,595 INFO L76 edCorrectnessWitness]: Location invariant before [L757-L757] ((0 <= x) && (x <= 1)) && (x == 0 || x == 1) [2024-02-07 14:49:02,595 INFO L76 edCorrectnessWitness]: Location invariant before [L812-L812] ((0 <= z$w_buff0) && (z$w_buff0 <= 1)) && (z$w_buff0 == 0 || z$w_buff0 == 1) [2024-02-07 14:49:02,596 INFO L76 edCorrectnessWitness]: Location invariant before [L876-L876] ((((0 <= __unbuffered_p3_EBX) && (__unbuffered_p3_EBX <= 1)) && (y == 2)) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1)) && ((__unbuffered_p0_EAX == 0 && ((__unbuffered_p2_EAX == 0 && (__unbuffered_p3_EAX == 1 || ((0 <= __unbuffered_p3_EAX && __unbuffered_p3_EAX <= 1) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)))) || (((((0 <= __unbuffered_p2_EAX && 0 <= __unbuffered_p3_EAX) && __unbuffered_p2_EAX <= 1) && __unbuffered_p3_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1)))) || ((((((((0 <= __unbuffered_p0_EAX && 0 <= __unbuffered_p2_EAX) && 0 <= __unbuffered_p3_EAX) && __unbuffered_p0_EAX <= 1) && __unbuffered_p2_EAX <= 1) && __unbuffered_p3_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p3_EAX == 0 || __unbuffered_p3_EAX == 1))) [2024-02-07 14:49:02,596 INFO L76 edCorrectnessWitness]: Location invariant before [L842-L842] 1 <= __unbuffered_cnt [2024-02-07 14:49:02,596 INFO L76 edCorrectnessWitness]: Location invariant before [L805-L805] 0 <= __unbuffered_cnt [2024-02-07 14:49:02,596 INFO L76 edCorrectnessWitness]: Location invariant before [L770-L770] x == 1 [2024-02-07 14:49:02,596 INFO L76 edCorrectnessWitness]: Location invariant before [L813-L813] ((0 <= z$w_buff1) && (z$w_buff1 <= 1)) && (z$w_buff1 == 0 || z$w_buff1 == 1) [2024-02-07 14:49:02,596 INFO L76 edCorrectnessWitness]: Location invariant before [L818-L818] (z$r_buff0_thd1 == (_Bool)0) && (z$r_buff1_thd0 == (_Bool)0) [2024-02-07 14:49:02,596 INFO L76 edCorrectnessWitness]: Location invariant before [L871-L871] (z$r_buff1_thd0 == (_Bool)0 && (z$w_buff1_used == (_Bool)1 || (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd0 == (_Bool)0 && z$w_buff0_used == (_Bool)1) [2024-02-07 14:49:02,597 INFO L76 edCorrectnessWitness]: Location invariant before [L791-L791] ((((((0 <= z && z <= 1) && (z == 0 || z == 1)) || ((z$r_buff1_thd3 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && z$w_buff1_used == (_Bool)1)) || z$r_buff0_thd3 == (_Bool)0) || (((z$r_buff0_thd3 == (_Bool)0 && z$r_buff1_thd3 == (_Bool)0) && z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd3 == (_Bool)0 && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (((((0 <= z$mem_tmp && z$mem_tmp <= 1) && z$r_buff1_thd3 == (_Bool)0) && (z$mem_tmp == 0 || z$mem_tmp == 1)) && (z$w_buff0_used == (_Bool)0 || z$w_buff0_used == (_Bool)1)) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 14:49:02,597 INFO L76 edCorrectnessWitness]: Location invariant before [L773-L773] y == 1 [2024-02-07 14:49:02,597 INFO L76 edCorrectnessWitness]: Location invariant before [L823-L823] z$r_buff0_thd4 == (_Bool)1 [2024-02-07 14:49:02,597 INFO L76 edCorrectnessWitness]: Location invariant before [L18-L18] ((0 <= expression) && (expression <= 1)) && (expression == 0 || expression == 1) [2024-02-07 14:49:02,597 INFO L76 edCorrectnessWitness]: Location invariant before [L866-L866] main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1 [2024-02-07 14:49:02,597 INFO L76 edCorrectnessWitness]: Location invariant before [L873-L873] (z$r_buff1_thd0 == (_Bool)0 && (z$w_buff1_used == (_Bool)1 || (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd0 == (_Bool)0 && z$w_buff0_used == (_Bool)1) [2024-02-07 14:49:02,597 INFO L76 edCorrectnessWitness]: Location invariant before [L816-L816] (z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)1) [2024-02-07 14:49:02,597 INFO L76 edCorrectnessWitness]: Location invariant before [L836-L836] (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1) && (((z$w_buff1_used == (_Bool)1 && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1)) || (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) || (z$w_buff0_used == (_Bool)1 && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1))) [2024-02-07 14:49:02,598 INFO L76 edCorrectnessWitness]: Location invariant before [L788-L788] weak$$choice0 == (_Bool)0 || weak$$choice0 == (_Bool)1 [2024-02-07 14:49:02,598 INFO L76 edCorrectnessWitness]: Location invariant before [L869-L869] (z$r_buff1_thd0 == (_Bool)0 && z$w_buff1_used == (_Bool)1) || (z$r_buff0_thd0 == (_Bool)0 && z$w_buff0_used == (_Bool)1) [2024-02-07 14:49:02,598 INFO L76 edCorrectnessWitness]: Location invariant before [L798-L798] (((0 <= z) && (z <= 1)) && (z$r_buff1_thd3 == (_Bool)0)) && (z == 0 || z == 1) [2024-02-07 14:49:02,598 INFO L76 edCorrectnessWitness]: Location invariant before [L778-L778] 1 <= __unbuffered_cnt [2024-02-07 14:49:02,598 INFO L76 edCorrectnessWitness]: Location invariant before [L792-L792] ((((z$r_buff1_thd3 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && z$w_buff1_used == (_Bool)1) || z$r_buff0_thd3 == (_Bool)0) || (((z$r_buff0_thd3 == (_Bool)0 && z$r_buff1_thd3 == (_Bool)0) && z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd3 == (_Bool)0 && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 14:49:02,598 INFO L76 edCorrectnessWitness]: Location invariant before [L789-L789] weak$$choice2 == (_Bool)0 || weak$$choice2 == (_Bool)1 [2024-02-07 14:49:02,599 INFO L76 edCorrectnessWitness]: Location invariant before [L878-L878] main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1 [2024-02-07 14:49:02,599 INFO L76 edCorrectnessWitness]: Location invariant before [L796-L796] ((((z$r_buff1_thd3 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && z$w_buff1_used == (_Bool)1) || z$r_buff0_thd3 == (_Bool)0) || (((z$r_buff0_thd3 == (_Bool)0 && z$r_buff1_thd3 == (_Bool)0) && z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd3 == (_Bool)0 && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 14:49:02,599 INFO L76 edCorrectnessWitness]: Location invariant before [L865-L865] 0 <= __unbuffered_cnt [2024-02-07 14:49:02,599 INFO L76 edCorrectnessWitness]: Location invariant before [L877-L877] main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1 [2024-02-07 14:49:02,599 INFO L76 edCorrectnessWitness]: Location invariant before [L870-L870] (z$r_buff0_thd0 == (_Bool)0) && (z$w_buff0_used == (_Bool)1) [2024-02-07 14:49:02,600 INFO L76 edCorrectnessWitness]: Location invariant before [L826-L826] a == 1 [2024-02-07 14:49:02,600 INFO L76 edCorrectnessWitness]: Location invariant before [L817-L817] z$r_buff0_thd0 == (_Bool)0 [2024-02-07 14:49:02,600 INFO L76 edCorrectnessWitness]: Location invariant before [L806-L806] 1 <= __unbuffered_cnt [2024-02-07 14:49:02,600 INFO L76 edCorrectnessWitness]: Location invariant before [L834-L834] (z$w_buff1_used == (_Bool)1 && (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1)) || (z$w_buff0_used == (_Bool)1 && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1)) [2024-02-07 14:49:02,600 INFO L76 edCorrectnessWitness]: Location invariant before [L837-L837] (z$w_buff0_used == (_Bool)1) && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) [2024-02-07 14:49:02,601 INFO L76 edCorrectnessWitness]: Location invariant before [L838-L838] (z$r_buff1_thd4 == (_Bool)0 || z$r_buff1_thd4 == (_Bool)1) && (((z$w_buff1_used == (_Bool)1 && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1)) || (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) || (z$w_buff0_used == (_Bool)1 && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1))) [2024-02-07 14:49:02,601 INFO L76 edCorrectnessWitness]: Location invariant before [L814-L814] (z$w_buff0 == 1) && (z$w_buff0_used == (_Bool)0 || z$w_buff0_used == (_Bool)1) [2024-02-07 14:49:02,601 INFO L76 edCorrectnessWitness]: Location invariant before [L872-L872] (z$r_buff0_thd0 == (_Bool)0) && (z$w_buff0_used == (_Bool)1) [2024-02-07 14:49:02,601 INFO L76 edCorrectnessWitness]: Location invariant before [L797-L797] ((((z$r_buff1_thd3 == (_Bool)0 && z$w_buff0_used == (_Bool)1) && z$w_buff1_used == (_Bool)1) || z$r_buff0_thd3 == (_Bool)0) || (((z$r_buff0_thd3 == (_Bool)0 && z$r_buff1_thd3 == (_Bool)0) && z$w_buff0_used == (_Bool)1) && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1))) || (z$r_buff0_thd3 == (_Bool)0 && (z$w_buff1_used == (_Bool)0 || z$w_buff1_used == (_Bool)1)) [2024-02-07 14:49:02,602 INFO L76 edCorrectnessWitness]: Location invariant before [L832-L832] ((0 <= __unbuffered_p3_EBX) && (__unbuffered_p3_EBX <= 1)) && (__unbuffered_p3_EBX == 0 || __unbuffered_p3_EBX == 1) [2024-02-07 14:49:02,602 INFO L76 edCorrectnessWitness]: Location invariant before [L821-L821] (z$r_buff1_thd3 == (_Bool)0) && (z$r_buff0_thd4 == (_Bool)0 || z$r_buff0_thd4 == (_Bool)1) [2024-02-07 14:49:02,602 INFO L76 edCorrectnessWitness]: Location invariant before [L801-L801] z$flush_delayed == (_Bool)0 [2024-02-07 14:49:02,602 INFO L76 edCorrectnessWitness]: Location invariant before [L790-L790] (((0 <= z) && (z <= 1)) && (z == 0 || z == 1)) && (z$flush_delayed == (_Bool)0 || z$flush_delayed == (_Bool)1) [2024-02-07 14:49:02,603 INFO L76 edCorrectnessWitness]: Location invariant before [L820-L820] (z$r_buff0_thd3 == (_Bool)0) && (z$r_buff1_thd2 == (_Bool)0) [2024-02-07 14:49:02,603 INFO L76 edCorrectnessWitness]: Location invariant before [L785-L785] y == 2 [2024-02-07 14:49:02,603 INFO L76 edCorrectnessWitness]: Location invariant before [L777-L777] 0 <= __unbuffered_cnt [2024-02-07 14:49:02,603 INFO L76 edCorrectnessWitness]: Location invariant before [L758-L758] ((0 <= __unbuffered_p0_EAX) && (__unbuffered_p0_EAX <= 1)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) [2024-02-07 14:49:02,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2024-02-07 14:49:02,773 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix039.opt.i[944,957] [2024-02-07 14:49:02,912 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:49:02,931 INFO L203 MainTranslator]: Completed pre-run Start Parsing Local [2024-02-07 14:49:02,958 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix039.opt.i[944,957] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 14:49:03,036 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:49:03,080 INFO L207 MainTranslator]: Completed translation [2024-02-07 14:49:03,081 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:03 WrapperNode [2024-02-07 14:49:03,081 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 14:49:03,081 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 14:49:03,082 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 14:49:03,082 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 14:49:03,087 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 07.02 02:49:03" (1/1) ... [2024-02-07 14:49:03,116 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 07.02 02:49:03" (1/1) ... [2024-02-07 14:49:03,165 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 190 [2024-02-07 14:49:03,165 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 14:49:03,166 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 14:49:03,167 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 14:49:03,167 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 14:49:03,175 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:03" (1/1) ... [2024-02-07 14:49:03,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:03" (1/1) ... [2024-02-07 14:49:03,186 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:03" (1/1) ... [2024-02-07 14:49:03,208 INFO L175 MemorySlicer]: Split 6 memory accesses to 5 slices as follows [2, 1, 1, 1, 1]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-02-07 14:49:03,213 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:03" (1/1) ... [2024-02-07 14:49:03,214 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:03" (1/1) ... [2024-02-07 14:49:03,230 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:03" (1/1) ... [2024-02-07 14:49:03,241 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:03" (1/1) ... [2024-02-07 14:49:03,243 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:03" (1/1) ... [2024-02-07 14:49:03,244 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:03" (1/1) ... [2024-02-07 14:49:03,253 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 14:49:03,253 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 14:49:03,254 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 14:49:03,254 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 14:49:03,254 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:03" (1/1) ... [2024-02-07 14:49:03,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:49:03,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 14:49:03,279 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) [2024-02-07 14:49:03,288 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 [2024-02-07 14:49:03,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 14:49:03,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 14:49:03,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 14:49:03,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 14:49:03,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-07 14:49:03,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-07 14:49:03,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 14:49:03,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 14:49:03,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 14:49:03,309 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-02-07 14:49:03,309 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-02-07 14:49:03,309 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-02-07 14:49:03,309 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-02-07 14:49:03,309 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-02-07 14:49:03,310 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-02-07 14:49:03,310 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-02-07 14:49:03,310 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-02-07 14:49:03,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 14:49:03,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 14:49:03,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 14:49:03,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 14:49:03,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-07 14:49:03,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-07 14:49:03,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 14:49:03,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 14:49:03,312 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 14:49:03,458 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 14:49:03,460 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 14:49:03,850 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 14:49:03,851 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 14:49:04,161 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 14:49:04,161 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-07 14:49:04,161 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:49:04 BoogieIcfgContainer [2024-02-07 14:49:04,162 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 14:49:04,163 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 14:49:04,164 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 14:49:04,166 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 14:49:04,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 02:49:02" (1/4) ... [2024-02-07 14:49:04,167 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2245d0e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:49:04, skipping insertion in model container [2024-02-07 14:49:04,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:49:02" (2/4) ... [2024-02-07 14:49:04,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2245d0e7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 02:49:04, skipping insertion in model container [2024-02-07 14:49:04,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:49:03" (3/4) ... [2024-02-07 14:49:04,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2245d0e7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 02:49:04, skipping insertion in model container [2024-02-07 14:49:04,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:49:04" (4/4) ... [2024-02-07 14:49:04,170 INFO L112 eAbstractionObserver]: Analyzing ICFG mix039.opt.i [2024-02-07 14:49:04,185 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 14:49:04,185 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 66 error locations. [2024-02-07 14:49:04,186 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 14:49:04,269 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-07 14:49:04,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 115 transitions, 246 flow [2024-02-07 14:49:04,368 INFO L124 PetriNetUnfolderBase]: 1/111 cut-off events. [2024-02-07 14:49:04,368 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:49:04,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 111 events. 1/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 495 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 115. Up to 2 conditions per place. [2024-02-07 14:49:04,374 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 115 transitions, 246 flow [2024-02-07 14:49:04,379 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 111 transitions, 234 flow [2024-02-07 14:49:04,391 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 14:49:04,397 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;@5a50d2c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 14:49:04,398 INFO L358 AbstractCegarLoop]: Starting to check reachability of 122 error locations. [2024-02-07 14:49:04,403 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 14:49:04,403 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-02-07 14:49:04,403 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:49:04,404 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:49:04,404 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-07 14:49:04,405 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 119 more)] === [2024-02-07 14:49:04,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:49:04,412 INFO L85 PathProgramCache]: Analyzing trace with hash 21846100, now seen corresponding path program 1 times [2024-02-07 14:49:04,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:49:04,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780024838] [2024-02-07 14:49:04,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:49:04,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:49:04,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:49:04,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:49:04,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:49:04,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780024838] [2024-02-07 14:49:04,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780024838] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:49:04,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:49:04,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 14:49:04,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559817447] [2024-02-07 14:49:04,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:49:04,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-02-07 14:49:04,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:49:04,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-02-07 14:49:04,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-02-07 14:49:04,626 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 115 [2024-02-07 14:49:04,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 111 transitions, 234 flow. Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:49:04,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:49:04,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 115 [2024-02-07 14:49:04,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:49:16,220 INFO L124 PetriNetUnfolderBase]: 111881/163338 cut-off events. [2024-02-07 14:49:16,221 INFO L125 PetriNetUnfolderBase]: For 515/515 co-relation queries the response was YES. [2024-02-07 14:49:16,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310200 conditions, 163338 events. 111881/163338 cut-off events. For 515/515 co-relation queries the response was YES. Maximal size of possible extension queue 8142. Compared 1396856 event pairs, 111881 based on Foata normal form. 2520/93160 useless extension candidates. Maximal degree in co-relation 310188. Up to 145749 conditions per place. [2024-02-07 14:49:17,303 INFO L140 encePairwiseOnDemand]: 83/115 looper letters, 46 selfloop transitions, 0 changer transitions 0/60 dead transitions. [2024-02-07 14:49:17,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 60 transitions, 224 flow [2024-02-07 14:49:17,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-02-07 14:49:17,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-02-07 14:49:17,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 114 transitions. [2024-02-07 14:49:17,312 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4956521739130435 [2024-02-07 14:49:17,313 INFO L175 Difference]: Start difference. First operand has 123 places, 111 transitions, 234 flow. Second operand 2 states and 114 transitions. [2024-02-07 14:49:17,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 60 transitions, 224 flow [2024-02-07 14:49:17,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 60 transitions, 220 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-02-07 14:49:17,323 INFO L231 Difference]: Finished difference. Result has 70 places, 60 transitions, 128 flow [2024-02-07 14:49:17,325 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=128, PETRI_PLACES=70, PETRI_TRANSITIONS=60} [2024-02-07 14:49:17,327 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, -53 predicate places. [2024-02-07 14:49:17,328 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 60 transitions, 128 flow [2024-02-07 14:49:17,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:49:17,328 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:49:17,328 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-07 14:49:17,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 14:49:17,329 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 119 more)] === [2024-02-07 14:49:17,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:49:17,329 INFO L85 PathProgramCache]: Analyzing trace with hash 677229905, now seen corresponding path program 1 times [2024-02-07 14:49:17,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:49:17,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126648799] [2024-02-07 14:49:17,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:49:17,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:49:17,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:49:17,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:49:17,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:49:17,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126648799] [2024-02-07 14:49:17,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126648799] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:49:17,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:49:17,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 14:49:17,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165619273] [2024-02-07 14:49:17,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:49:17,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:49:17,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:49:17,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:49:17,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:49:17,428 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 115 [2024-02-07 14:49:17,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 60 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:49:17,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:49:17,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 115 [2024-02-07 14:49:17,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:49:27,045 INFO L124 PetriNetUnfolderBase]: 108966/149446 cut-off events. [2024-02-07 14:49:27,045 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:49:27,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 292554 conditions, 149446 events. 108966/149446 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7793. Compared 1175084 event pairs, 16811 based on Foata normal form. 0/83430 useless extension candidates. Maximal degree in co-relation 292551. Up to 125330 conditions per place. [2024-02-07 14:49:28,196 INFO L140 encePairwiseOnDemand]: 112/115 looper letters, 80 selfloop transitions, 2 changer transitions 0/96 dead transitions. [2024-02-07 14:49:28,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 96 transitions, 368 flow [2024-02-07 14:49:28,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:49:28,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:49:28,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 137 transitions. [2024-02-07 14:49:28,198 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39710144927536234 [2024-02-07 14:49:28,198 INFO L175 Difference]: Start difference. First operand has 70 places, 60 transitions, 128 flow. Second operand 3 states and 137 transitions. [2024-02-07 14:49:28,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 96 transitions, 368 flow [2024-02-07 14:49:28,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 96 transitions, 368 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-07 14:49:28,201 INFO L231 Difference]: Finished difference. Result has 73 places, 60 transitions, 136 flow [2024-02-07 14:49:28,202 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=73, PETRI_TRANSITIONS=60} [2024-02-07 14:49:28,202 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, -50 predicate places. [2024-02-07 14:49:28,202 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 60 transitions, 136 flow [2024-02-07 14:49:28,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:49:28,203 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:49:28,203 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:49:28,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 14:49:28,203 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err3ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 119 more)] === [2024-02-07 14:49:28,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:49:28,204 INFO L85 PathProgramCache]: Analyzing trace with hash -2017063500, now seen corresponding path program 1 times [2024-02-07 14:49:28,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:49:28,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117657346] [2024-02-07 14:49:28,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:49:28,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:49:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:49:28,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:49:28,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:49:28,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117657346] [2024-02-07 14:49:28,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117657346] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:49:28,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:49:28,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 14:49:28,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756107369] [2024-02-07 14:49:28,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:49:28,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:49:28,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:49:28,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:49:28,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:49:28,269 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 115 [2024-02-07 14:49:28,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 60 transitions, 136 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:49:28,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:49:28,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 115 [2024-02-07 14:49:28,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand