./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/safe000_pso.oepc_pso.opt_tso.oepc_tso.opt.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fced0e87 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/safe000_pso.oepc_pso.opt_tso.oepc_tso.opt.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/safe000_pso.oepc_pso.opt_tso.oepc_tso.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-wip.fs.extract-columns-fced0e8-m [2024-01-31 16:02:38,475 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-31 16:02:38,552 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-31 16:02:38,557 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-31 16:02:38,558 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-31 16:02:38,588 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-31 16:02:38,589 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-31 16:02:38,589 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-31 16:02:38,590 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-31 16:02:38,593 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-31 16:02:38,593 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-31 16:02:38,593 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-31 16:02:38,594 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-31 16:02:38,595 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-31 16:02:38,596 INFO L153 SettingsManager]: * Use SBE=true [2024-01-31 16:02:38,596 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-31 16:02:38,596 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-31 16:02:38,596 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-31 16:02:38,596 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-31 16:02:38,597 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-31 16:02:38,597 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-31 16:02:38,597 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-31 16:02:38,597 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-31 16:02:38,598 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-31 16:02:38,598 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-31 16:02:38,598 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-31 16:02:38,598 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-31 16:02:38,599 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-31 16:02:38,599 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-31 16:02:38,599 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-31 16:02:38,600 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-31 16:02:38,600 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-31 16:02:38,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:02:38,601 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-31 16:02:38,601 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-31 16:02:38,601 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-31 16:02:38,601 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-31 16:02:38,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-31 16:02:38,602 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-31 16:02:38,602 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-31 16:02:38,602 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-31 16:02:38,602 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-31 16:02:38,603 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-31 16:02:38,603 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-31 16:02:38,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-31 16:02:38,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-31 16:02:38,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-31 16:02:38,855 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-31 16:02:38,855 INFO L274 PluginConnector]: CDTParser initialized [2024-01-31 16:02:38,856 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-01-31 16:02:40,188 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-31 16:02:40,435 INFO L384 CDTParser]: Found 1 translation units. [2024-01-31 16:02:40,437 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-01-31 16:02:40,455 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fb21544a/1bd1fe2cfb9849fcb2be09d50f73bcb8/FLAGcf7d8f0ce [2024-01-31 16:02:40,467 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fb21544a/1bd1fe2cfb9849fcb2be09d50f73bcb8 [2024-01-31 16:02:40,469 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-31 16:02:40,469 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-31 16:02:40,470 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/safe000_pso.oepc_pso.opt_tso.oepc_tso.opt.yml/witness.yml [2024-01-31 16:02:40,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-31 16:02:40,666 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-31 16:02:40,667 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-31 16:02:40,667 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-31 16:02:40,671 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-31 16:02:40,671 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:02:40" (1/2) ... [2024-01-31 16:02:40,672 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f781434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:02:40, skipping insertion in model container [2024-01-31 16:02:40,672 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:02:40" (1/2) ... [2024-01-31 16:02:40,674 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6b6eb4bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:02:40, skipping insertion in model container [2024-01-31 16:02:40,674 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:02:40" (2/2) ... [2024-01-31 16:02:40,675 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f781434 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:02:40, skipping insertion in model container [2024-01-31 16:02:40,675 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:02:40" (2/2) ... [2024-01-31 16:02:40,675 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-31 16:02:41,116 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-31 16:02:41,117 INFO L98 nessWitnessExtractor]: Location invariant before [L725-L725] ((((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-31 16:02:41,117 INFO L98 nessWitnessExtractor]: Location invariant before [L744-L744] (((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 1)) && (y == 1)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2) [2024-01-31 16:02:41,118 INFO L98 nessWitnessExtractor]: Location invariant before [L792-L792] (((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-31 16:02:41,118 INFO L98 nessWitnessExtractor]: Location invariant before [L791-L791] (((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 1)) && (y == 2)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((__unbuffered_p0_EAX == 2 && (__unbuffered_p1_EAX == 1 || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)))) || (((((0 <= __unbuffered_p0_EAX && 0 <= __unbuffered_p1_EAX) && __unbuffered_p0_EAX <= 2) && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)))) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2) [2024-01-31 16:02:41,118 INFO L98 nessWitnessExtractor]: Location invariant before [L789-L789] (((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-31 16:02:41,118 INFO L98 nessWitnessExtractor]: Location invariant before [L758-L758] ((((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-31 16:02:41,118 INFO L98 nessWitnessExtractor]: Location invariant before [L779-L779] (((((((__unbuffered_cnt == 0) && (__unbuffered_p0_EAX == 0)) && (__unbuffered_p1_EAX == 0)) && (__unbuffered_p2_EAX == 0)) && (main$tmp_guard0 == (_Bool)0)) && (main$tmp_guard1 == (_Bool)0)) && (x == 0)) && (y == 0) [2024-01-31 16:02:41,118 INFO L98 nessWitnessExtractor]: Location invariant before [L18-L18] expression == 1 [2024-01-31 16:02:41,119 INFO L98 nessWitnessExtractor]: Location invariant before [L785-L785] (((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-31 16:02:41,119 INFO L98 nessWitnessExtractor]: Location invariant before [L755-L755] ((((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-31 16:02:41,119 INFO L98 nessWitnessExtractor]: Location invariant before [L749-L749] ((((((((((((((((((((0 <= __unbuffered_p0_EAX) && (0 <= __unbuffered_p1_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (1 <= __unbuffered_cnt)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-31 16:02:41,119 INFO L98 nessWitnessExtractor]: Location invariant before [L759-L759] (((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 1)) && (y == 2)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2) [2024-01-31 16:02:41,119 INFO L98 nessWitnessExtractor]: Location invariant before [L760-L760] (unsigned long )arg == 0UL [2024-01-31 16:02:41,119 INFO L98 nessWitnessExtractor]: Location invariant before [L746-L746] ((((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-31 16:02:41,119 INFO L98 nessWitnessExtractor]: Location invariant before [L18-L18] ((0 <= expression) && (expression <= 1)) && (expression == 0 || expression == 1) [2024-01-31 16:02:41,120 INFO L98 nessWitnessExtractor]: Location invariant before [L748-L748] ((((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-31 16:02:41,120 INFO L98 nessWitnessExtractor]: Location invariant before [L724-L724] (unsigned long )arg == 0UL [2024-01-31 16:02:41,120 INFO L98 nessWitnessExtractor]: Location invariant before [L18-L18] expression == 0 [2024-01-31 16:02:41,120 INFO L98 nessWitnessExtractor]: Location invariant before [L764-L764] ((((((((((((((((((((0 <= __unbuffered_p0_EAX) && (0 <= __unbuffered_p1_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (1 <= __unbuffered_cnt)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-31 16:02:41,120 INFO L98 nessWitnessExtractor]: Location invariant before [L761-L761] ((((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-31 16:02:41,120 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L18] expression == 0 [2024-01-31 16:02:41,121 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L18] expression == 1 [2024-01-31 16:02:41,121 INFO L98 nessWitnessExtractor]: Location invariant before [L728-L728] ((((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-31 16:02:41,121 INFO L98 nessWitnessExtractor]: Location invariant before [L756-L756] ((((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-31 16:02:41,121 INFO L98 nessWitnessExtractor]: Location invariant before [L740-L740] ((((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-31 16:02:41,121 INFO L98 nessWitnessExtractor]: Location invariant before [L733-L733] ((((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-31 16:02:41,122 INFO L98 nessWitnessExtractor]: Location invariant before [L735-L735] (unsigned long )arg == 0UL [2024-01-31 16:02:41,122 INFO L98 nessWitnessExtractor]: Location invariant before [L742-L742] (unsigned long )arg == 0UL [2024-01-31 16:02:41,122 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L18] expression == 1 [2024-01-31 16:02:41,122 INFO L98 nessWitnessExtractor]: Location invariant before [L732-L732] (unsigned long )arg == 0UL [2024-01-31 16:02:41,122 INFO L98 nessWitnessExtractor]: Location invariant before [L730-L730] (unsigned long )arg == 0UL [2024-01-31 16:02:41,122 INFO L98 nessWitnessExtractor]: Location invariant before [L741-L741] ((((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-31 16:02:41,122 INFO L98 nessWitnessExtractor]: Location invariant before [L762-L762] (unsigned long )arg == 0UL [2024-01-31 16:02:41,122 INFO L98 nessWitnessExtractor]: Location invariant before [L786-L786] (((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-31 16:02:41,123 INFO L98 nessWitnessExtractor]: Location invariant before [L739-L739] (unsigned long )arg == 0UL [2024-01-31 16:02:41,123 INFO L98 nessWitnessExtractor]: Location invariant before [L729-L729] ((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (y <= 2)) && (y <= 127)) && (x == 1)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-31 16:02:41,124 INFO L98 nessWitnessExtractor]: Location invariant before [L747-L747] (unsigned long )arg == 0UL [2024-01-31 16:02:41,124 INFO L98 nessWitnessExtractor]: Location invariant before [L731-L731] ((((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-31 16:02:41,124 INFO L98 nessWitnessExtractor]: Location invariant before [L750-L750] (unsigned long )arg == 0UL [2024-01-31 16:02:41,124 INFO L98 nessWitnessExtractor]: Location invariant before [L757-L757] (unsigned long )arg == 0UL [2024-01-31 16:02:41,124 INFO L98 nessWitnessExtractor]: Location invariant before [L754-L754] (unsigned long )arg == 0UL [2024-01-31 16:02:41,124 INFO L98 nessWitnessExtractor]: Location invariant before [L727-L727] (unsigned long )arg == 0UL [2024-01-31 16:02:41,125 INFO L98 nessWitnessExtractor]: Location invariant before [L726-L726] (((((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p0_EAX <= 127)) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-31 16:02:41,125 INFO L98 nessWitnessExtractor]: Location invariant before [L765-L765] (unsigned long )arg == 0UL [2024-01-31 16:02:41,125 INFO L98 nessWitnessExtractor]: Location invariant before [L743-L743] ((((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-31 16:02:41,125 INFO L98 nessWitnessExtractor]: Location invariant before [L763-L763] ((((((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-31 16:02:41,125 INFO L98 nessWitnessExtractor]: Location invariant before [L745-L745] (unsigned long )arg == 0UL [2024-01-31 16:02:41,126 INFO L98 nessWitnessExtractor]: Location invariant before [L734-L734] ((((((((((((((((((((0 <= __unbuffered_p0_EAX) && (0 <= __unbuffered_p1_EAX)) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (1 <= __unbuffered_cnt)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-31 16:02:41,167 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-01-31 16:02:41,296 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/safe000_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-01-31 16:02:41,420 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:02:41,433 INFO L204 MainTranslator]: Completed pre-run Start Parsing Local [2024-01-31 16:02:41,465 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/safe000_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] Start Parsing Local Start Parsing Local [2024-01-31 16:02:41,467 WARN L424 MainDispatcher]: Unable to annotate ; with a witness entry 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 [2024-01-31 16:02:41,631 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:02:41,669 INFO L208 MainTranslator]: Completed translation [2024-01-31 16:02:41,669 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:02:41 WrapperNode [2024-01-31 16:02:41,670 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-31 16:02:41,671 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-31 16:02:41,672 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-31 16:02:41,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-31 16:02:41,678 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 31.01 04:02:41" (1/1) ... [2024-01-31 16:02:41,712 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 31.01 04:02:41" (1/1) ... [2024-01-31 16:02:41,747 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 79 [2024-01-31 16:02:41,749 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-31 16:02:41,750 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-31 16:02:41,750 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-31 16:02:41,750 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-31 16:02:41,759 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:02:41" (1/1) ... [2024-01-31 16:02:41,760 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:02:41" (1/1) ... [2024-01-31 16:02:41,779 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:02:41" (1/1) ... [2024-01-31 16:02:41,795 INFO L175 MemorySlicer]: Split 5 memory accesses to 4 slices as follows [2, 1, 1, 1]. 40 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-01-31 16:02:41,808 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:02:41" (1/1) ... [2024-01-31 16:02:41,808 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:02:41" (1/1) ... [2024-01-31 16:02:41,818 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:02:41" (1/1) ... [2024-01-31 16:02:41,833 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:02:41" (1/1) ... [2024-01-31 16:02:41,837 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:02:41" (1/1) ... [2024-01-31 16:02:41,846 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:02:41" (1/1) ... [2024-01-31 16:02:41,850 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-31 16:02:41,852 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-31 16:02:41,852 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-31 16:02:41,852 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-31 16:02:41,853 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:02:41" (1/1) ... [2024-01-31 16:02:41,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:02:41,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 16:02:41,882 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) [2024-01-31 16:02:41,905 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 [2024-01-31 16:02:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-31 16:02:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-31 16:02:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-31 16:02:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-31 16:02:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-31 16:02:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-31 16:02:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-31 16:02:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-31 16:02:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-01-31 16:02:41,921 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-01-31 16:02:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-01-31 16:02:41,922 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-01-31 16:02:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-01-31 16:02:41,922 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-01-31 16:02:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-31 16:02:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-31 16:02:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-31 16:02:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-31 16:02:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-31 16:02:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-31 16:02:41,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-31 16:02:41,925 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-31 16:02:42,061 INFO L244 CfgBuilder]: Building ICFG [2024-01-31 16:02:42,063 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-31 16:02:42,702 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-31 16:02:42,703 INFO L293 CfgBuilder]: Performing block encoding [2024-01-31 16:02:42,911 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-31 16:02:42,911 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-31 16:02:42,913 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:02:42 BoogieIcfgContainer [2024-01-31 16:02:42,913 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-31 16:02:42,916 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-31 16:02:42,916 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-31 16:02:42,919 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-31 16:02:42,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:02:40" (1/4) ... [2024-01-31 16:02:42,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@567ca53b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:02:42, skipping insertion in model container [2024-01-31 16:02:42,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:02:40" (2/4) ... [2024-01-31 16:02:42,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@567ca53b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 04:02:42, skipping insertion in model container [2024-01-31 16:02:42,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:02:41" (3/4) ... [2024-01-31 16:02:42,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@567ca53b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 04:02:42, skipping insertion in model container [2024-01-31 16:02:42,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:02:42" (4/4) ... [2024-01-31 16:02:42,922 INFO L112 eAbstractionObserver]: Analyzing ICFG safe000_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-01-31 16:02:42,939 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-31 16:02:42,940 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2024-01-31 16:02:42,940 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-31 16:02:43,077 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-31 16:02:43,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 98 transitions, 208 flow [2024-01-31 16:02:43,162 INFO L124 PetriNetUnfolderBase]: 1/95 cut-off events. [2024-01-31 16:02:43,167 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:02:43,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 95 events. 1/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 390 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2024-01-31 16:02:43,172 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 98 transitions, 208 flow [2024-01-31 16:02:43,176 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 95 transitions, 199 flow [2024-01-31 16:02:43,188 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 16:02:43,195 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;@26b53a17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 16:02:43,196 INFO L358 AbstractCegarLoop]: Starting to check reachability of 85 error locations. [2024-01-31 16:02:43,198 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 16:02:43,199 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-31 16:02:43,199 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:02:43,199 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:02:43,200 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-31 16:02:43,200 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 82 more)] === [2024-01-31 16:02:43,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:02:43,204 INFO L85 PathProgramCache]: Analyzing trace with hash 12571, now seen corresponding path program 1 times [2024-01-31 16:02:43,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:02:43,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59570355] [2024-01-31 16:02:43,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:02:43,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:02:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:02:43,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:02:43,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:02:43,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59570355] [2024-01-31 16:02:43,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59570355] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:02:43,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:02:43,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-31 16:02:43,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962747199] [2024-01-31 16:02:43,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:02:43,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:02:43,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:02:43,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:02:43,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:02:43,521 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 98 [2024-01-31 16:02:43,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 95 transitions, 199 flow. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:02:43,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:02:43,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 98 [2024-01-31 16:02:43,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:02:50,436 INFO L124 PetriNetUnfolderBase]: 27543/49176 cut-off events. [2024-01-31 16:02:50,437 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-01-31 16:02:50,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87656 conditions, 49176 events. 27543/49176 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 2472. Compared 495604 event pairs, 15903 based on Foata normal form. 1000/30511 useless extension candidates. Maximal degree in co-relation 87643. Up to 37597 conditions per place. [2024-01-31 16:02:50,901 INFO L140 encePairwiseOnDemand]: 79/98 looper letters, 58 selfloop transitions, 4 changer transitions 0/100 dead transitions. [2024-01-31 16:02:50,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 100 transitions, 339 flow [2024-01-31 16:02:50,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 16:02:50,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 16:02:50,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 207 transitions. [2024-01-31 16:02:50,916 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7040816326530612 [2024-01-31 16:02:50,918 INFO L175 Difference]: Start difference. First operand has 104 places, 95 transitions, 199 flow. Second operand 3 states and 207 transitions. [2024-01-31 16:02:50,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 100 transitions, 339 flow [2024-01-31 16:02:50,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 100 transitions, 334 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-31 16:02:50,936 INFO L231 Difference]: Finished difference. Result has 92 places, 85 transitions, 198 flow [2024-01-31 16:02:50,939 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=92, PETRI_TRANSITIONS=85} [2024-01-31 16:02:50,952 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -12 predicate places. [2024-01-31 16:02:50,954 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 85 transitions, 198 flow [2024-01-31 16:02:50,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:02:50,955 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:02:50,955 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-31 16:02:50,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-31 16:02:50,955 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 82 more)] === [2024-01-31 16:02:50,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:02:50,957 INFO L85 PathProgramCache]: Analyzing trace with hash 375022709, now seen corresponding path program 1 times [2024-01-31 16:02:50,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:02:50,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623712057] [2024-01-31 16:02:50,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:02:50,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:02:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:02:51,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:02:51,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:02:51,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623712057] [2024-01-31 16:02:51,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623712057] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:02:51,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:02:51,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:02:51,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112842382] [2024-01-31 16:02:51,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:02:51,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:02:51,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:02:51,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:02:51,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:02:51,123 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 98 [2024-01-31 16:02:51,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 85 transitions, 198 flow. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:02:51,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:02:51,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 98 [2024-01-31 16:02:51,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:02:58,003 INFO L124 PetriNetUnfolderBase]: 30179/52397 cut-off events. [2024-01-31 16:02:58,004 INFO L125 PetriNetUnfolderBase]: For 4257/4257 co-relation queries the response was YES. [2024-01-31 16:02:58,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99873 conditions, 52397 events. 30179/52397 cut-off events. For 4257/4257 co-relation queries the response was YES. Maximal size of possible extension queue 2549. Compared 520859 event pairs, 15567 based on Foata normal form. 4232/40474 useless extension candidates. Maximal degree in co-relation 99860. Up to 39244 conditions per place. [2024-01-31 16:02:58,378 INFO L140 encePairwiseOnDemand]: 91/98 looper letters, 80 selfloop transitions, 2 changer transitions 0/114 dead transitions. [2024-01-31 16:02:58,379 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 114 transitions, 438 flow [2024-01-31 16:02:58,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 16:02:58,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 16:02:58,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 226 transitions. [2024-01-31 16:02:58,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.576530612244898 [2024-01-31 16:02:58,385 INFO L175 Difference]: Start difference. First operand has 92 places, 85 transitions, 198 flow. Second operand 4 states and 226 transitions. [2024-01-31 16:02:58,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 114 transitions, 438 flow [2024-01-31 16:02:58,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 114 transitions, 432 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-31 16:02:58,389 INFO L231 Difference]: Finished difference. Result has 89 places, 80 transitions, 188 flow [2024-01-31 16:02:58,389 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=188, PETRI_PLACES=89, PETRI_TRANSITIONS=80} [2024-01-31 16:02:58,390 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -15 predicate places. [2024-01-31 16:02:58,390 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 80 transitions, 188 flow [2024-01-31 16:02:58,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:02:58,391 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:02:58,391 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-31 16:02:58,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-31 16:02:58,391 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 82 more)] === [2024-01-31 16:02:58,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:02:58,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1259197450, now seen corresponding path program 1 times [2024-01-31 16:02:58,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:02:58,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260493802] [2024-01-31 16:02:58,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:02:58,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:02:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:02:58,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:02:58,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:02:58,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260493802] [2024-01-31 16:02:58,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260493802] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:02:58,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:02:58,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:02:58,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376138366] [2024-01-31 16:02:58,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:02:58,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-31 16:02:58,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:02:58,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-31 16:02:58,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-31 16:02:58,752 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 98 [2024-01-31 16:02:58,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 80 transitions, 188 flow. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:02:58,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:02:58,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 98 [2024-01-31 16:02:58,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:03:06,871 INFO L124 PetriNetUnfolderBase]: 41199/72433 cut-off events. [2024-01-31 16:03:06,871 INFO L125 PetriNetUnfolderBase]: For 6521/6521 co-relation queries the response was YES. [2024-01-31 16:03:07,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137364 conditions, 72433 events. 41199/72433 cut-off events. For 6521/6521 co-relation queries the response was YES. Maximal size of possible extension queue 3469. Compared 743234 event pairs, 24561 based on Foata normal form. 58/51027 useless extension candidates. Maximal degree in co-relation 137350. Up to 56185 conditions per place. [2024-01-31 16:03:07,424 INFO L140 encePairwiseOnDemand]: 91/98 looper letters, 75 selfloop transitions, 7 changer transitions 0/110 dead transitions. [2024-01-31 16:03:07,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 110 transitions, 426 flow [2024-01-31 16:03:07,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 16:03:07,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 16:03:07,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 208 transitions. [2024-01-31 16:03:07,426 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5306122448979592 [2024-01-31 16:03:07,426 INFO L175 Difference]: Start difference. First operand has 89 places, 80 transitions, 188 flow. Second operand 4 states and 208 transitions. [2024-01-31 16:03:07,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 110 transitions, 426 flow [2024-01-31 16:03:07,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 110 transitions, 422 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 16:03:07,429 INFO L231 Difference]: Finished difference. Result has 92 places, 83 transitions, 223 flow [2024-01-31 16:03:07,429 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=223, PETRI_PLACES=92, PETRI_TRANSITIONS=83} [2024-01-31 16:03:07,430 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -12 predicate places. [2024-01-31 16:03:07,430 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 83 transitions, 223 flow [2024-01-31 16:03:07,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:03:07,431 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:03:07,431 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:03:07,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-31 16:03:07,431 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 82 more)] === [2024-01-31 16:03:07,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:03:07,432 INFO L85 PathProgramCache]: Analyzing trace with hash -380470948, now seen corresponding path program 1 times [2024-01-31 16:03:07,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:03:07,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149183686] [2024-01-31 16:03:07,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:03:07,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:03:07,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:03:07,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:03:07,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:03:07,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149183686] [2024-01-31 16:03:07,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149183686] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:03:07,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:03:07,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:03:07,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84821628] [2024-01-31 16:03:07,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:03:07,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:03:07,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:03:07,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:03:07,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:03:07,531 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 98 [2024-01-31 16:03:07,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 83 transitions, 223 flow. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:03:07,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:03:07,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 98 [2024-01-31 16:03:07,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:03:13,785 INFO L124 PetriNetUnfolderBase]: 31529/53519 cut-off events. [2024-01-31 16:03:13,786 INFO L125 PetriNetUnfolderBase]: For 6900/6969 co-relation queries the response was YES. [2024-01-31 16:03:13,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105610 conditions, 53519 events. 31529/53519 cut-off events. For 6900/6969 co-relation queries the response was YES. Maximal size of possible extension queue 2539. Compared 511291 event pairs, 25860 based on Foata normal form. 4593/42422 useless extension candidates. Maximal degree in co-relation 105594. Up to 41358 conditions per place. [2024-01-31 16:03:14,219 INFO L140 encePairwiseOnDemand]: 91/98 looper letters, 88 selfloop transitions, 2 changer transitions 0/118 dead transitions. [2024-01-31 16:03:14,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 118 transitions, 507 flow [2024-01-31 16:03:14,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 16:03:14,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 16:03:14,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 231 transitions. [2024-01-31 16:03:14,222 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5892857142857143 [2024-01-31 16:03:14,222 INFO L175 Difference]: Start difference. First operand has 92 places, 83 transitions, 223 flow. Second operand 4 states and 231 transitions. [2024-01-31 16:03:14,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 118 transitions, 507 flow [2024-01-31 16:03:14,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 118 transitions, 487 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 16:03:14,232 INFO L231 Difference]: Finished difference. Result has 88 places, 78 transitions, 205 flow [2024-01-31 16:03:14,233 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=205, PETRI_PLACES=88, PETRI_TRANSITIONS=78} [2024-01-31 16:03:14,233 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -16 predicate places. [2024-01-31 16:03:14,233 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 78 transitions, 205 flow [2024-01-31 16:03:14,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:03:14,234 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:03:14,234 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:03:14,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-31 16:03:14,234 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 82 more)] === [2024-01-31 16:03:14,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:03:14,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1090302981, now seen corresponding path program 1 times [2024-01-31 16:03:14,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:03:14,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093362636] [2024-01-31 16:03:14,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:03:14,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:03:14,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:03:14,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:03:14,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:03:14,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093362636] [2024-01-31 16:03:14,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093362636] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:03:14,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:03:14,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:03:14,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666329511] [2024-01-31 16:03:14,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:03:14,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-31 16:03:14,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:03:14,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-31 16:03:14,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-31 16:03:14,458 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 98 [2024-01-31 16:03:14,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 78 transitions, 205 flow. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:03:14,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:03:14,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 98 [2024-01-31 16:03:14,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand