./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-01-24_13-31-21.files/SV-COMP24_unreach-call/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d8006e4b 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/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i ./goblint.2024-01-24_13-31-21.files/SV-COMP24_unreach-call/safe009_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-dev-d8006e4-m [2024-02-05 10:27:20,903 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-05 10:27:20,972 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-05 10:27:20,977 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-05 10:27:20,977 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-05 10:27:20,999 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-05 10:27:21,002 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-05 10:27:21,003 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-05 10:27:21,003 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-05 10:27:21,006 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-05 10:27:21,006 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-05 10:27:21,007 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-05 10:27:21,007 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-05 10:27:21,008 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-05 10:27:21,009 INFO L153 SettingsManager]: * Use SBE=true [2024-02-05 10:27:21,009 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-05 10:27:21,009 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-05 10:27:21,009 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-05 10:27:21,010 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-05 10:27:21,010 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-05 10:27:21,010 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-05 10:27:21,010 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-05 10:27:21,011 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-05 10:27:21,011 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-05 10:27:21,011 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-05 10:27:21,011 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-05 10:27:21,011 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-05 10:27:21,012 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-05 10:27:21,012 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-05 10:27:21,012 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-05 10:27:21,013 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-05 10:27:21,013 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-05 10:27:21,014 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-05 10:27:21,014 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-05 10:27:21,014 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-05 10:27:21,014 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-05 10:27:21,014 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-05 10:27:21,014 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-05 10:27:21,015 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-05 10:27:21,015 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-05 10:27:21,015 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-05 10:27:21,015 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-05 10:27:21,016 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-05 10:27:21,016 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-05 10:27:21,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-05 10:27:21,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-05 10:27:21,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-05 10:27:21,258 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-05 10:27:21,259 INFO L274 PluginConnector]: CDTParser initialized [2024-02-05 10:27:21,259 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-02-05 10:27:22,280 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-05 10:27:22,508 INFO L384 CDTParser]: Found 1 translation units. [2024-02-05 10:27:22,509 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-02-05 10:27:22,519 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1684be57/ba583834739c4524a03e0432cad377fe/FLAG1def76c8c [2024-02-05 10:27:22,532 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1684be57/ba583834739c4524a03e0432cad377fe [2024-02-05 10:27:22,535 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-05 10:27:22,535 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-05 10:27:22,535 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-01-24_13-31-21.files/SV-COMP24_unreach-call/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.yml/witness.yml [2024-02-05 10:27:22,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-05 10:27:22,742 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-05 10:27:22,744 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-05 10:27:22,744 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-05 10:27:22,748 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-05 10:27:22,749 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 10:27:22" (1/2) ... [2024-02-05 10:27:22,749 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@517618ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:27:22, skipping insertion in model container [2024-02-05 10:27:22,750 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 10:27:22" (1/2) ... [2024-02-05 10:27:22,751 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@69f57018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:27:22, skipping insertion in model container [2024-02-05 10:27:22,751 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 05.02 10:27:22" (2/2) ... [2024-02-05 10:27:22,751 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@517618ca and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:27:22, skipping insertion in model container [2024-02-05 10:27:22,752 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 05.02 10:27:22" (2/2) ... [2024-02-05 10:27:22,752 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-05 10:27:23,036 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-05 10:27:23,037 INFO L101 nessWitnessExtractor]: Location invariant before [L754-L754] (((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= x)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (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) [2024-02-05 10:27:23,037 INFO L101 nessWitnessExtractor]: Location invariant before [L759-L759] ((((((((((((((((0 <= __unbuffered_p0_EAX) && (0 <= __unbuffered_p1_EAX)) && (0 <= x)) && (0 <= y)) && (1 <= __unbuffered_cnt)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (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)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:23,037 INFO L101 nessWitnessExtractor]: Location invariant before [L745-L745] (unsigned long )arg == 0UL [2024-02-05 10:27:23,037 INFO L101 nessWitnessExtractor]: Location invariant before [L780-L780] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (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)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:23,038 INFO L101 nessWitnessExtractor]: Location invariant before [L755-L755] (unsigned long )arg == 0UL [2024-02-05 10:27:23,038 INFO L101 nessWitnessExtractor]: Location invariant before [L731-L731] ((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (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)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:23,038 INFO L101 nessWitnessExtractor]: Location invariant before [L730-L730] (unsigned long )arg == 0UL [2024-02-05 10:27:23,038 INFO L101 nessWitnessExtractor]: Location invariant before [L742-L742] (((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= x)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (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) [2024-02-05 10:27:23,038 INFO L101 nessWitnessExtractor]: Location invariant before [L760-L760] (unsigned long )arg == 0UL [2024-02-05 10:27:23,038 INFO L101 nessWitnessExtractor]: Location invariant before [L732-L732] ((((((((((((((((0 <= __unbuffered_p0_EAX) && (0 <= __unbuffered_p1_EAX)) && (0 <= x)) && (0 <= y)) && (1 <= __unbuffered_cnt)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (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)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:23,038 INFO L101 nessWitnessExtractor]: Location invariant before [L728-L728] (unsigned long )arg == 0UL [2024-02-05 10:27:23,038 INFO L101 nessWitnessExtractor]: Location invariant before [L756-L756] ((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (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)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:23,039 INFO L101 nessWitnessExtractor]: Location invariant before [L722-L722] (unsigned long )arg == 0UL [2024-02-05 10:27:23,039 INFO L101 nessWitnessExtractor]: Location invariant before [L752-L752] (unsigned long )arg == 0UL [2024-02-05 10:27:23,039 INFO L101 nessWitnessExtractor]: Location invariant before [L733-L733] (unsigned long )arg == 0UL [2024-02-05 10:27:23,039 INFO L101 nessWitnessExtractor]: Location invariant after [L18-L18] expression == 0 [2024-02-05 10:27:23,039 INFO L101 nessWitnessExtractor]: Location invariant before [L753-L753] ((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (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)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:23,039 INFO L101 nessWitnessExtractor]: Location invariant before [L18-L18] expression == 0 [2024-02-05 10:27:23,039 INFO L101 nessWitnessExtractor]: Location invariant before [L786-L786] ((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p1_EAX)) && (0 <= x)) && (__unbuffered_p1_EAX <= 1)) && (x <= 1)) && (y == 2)) && (__unbuffered_p0_EAX == 2 || ((0 <= __unbuffered_p0_EAX && __unbuffered_p0_EAX <= 2) && ((__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1) || __unbuffered_p0_EAX == 2)))) && (__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) [2024-02-05 10:27:23,039 INFO L101 nessWitnessExtractor]: Location invariant before [L744-L744] ((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (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)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:23,040 INFO L101 nessWitnessExtractor]: Location invariant before [L18-L18] expression == 1 [2024-02-05 10:27:23,040 INFO L101 nessWitnessExtractor]: Location invariant after [L18-L18] expression == 1 [2024-02-05 10:27:23,040 INFO L101 nessWitnessExtractor]: Location invariant before [L748-L748] (unsigned long )arg == 0UL [2024-02-05 10:27:23,040 INFO L101 nessWitnessExtractor]: Location invariant before [L739-L739] ((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (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)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:23,041 INFO L101 nessWitnessExtractor]: Location invariant before [L738-L738] ((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (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)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:23,041 INFO L101 nessWitnessExtractor]: Location invariant before [L741-L741] ((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (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)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:23,041 INFO L101 nessWitnessExtractor]: Location invariant before [L737-L737] (unsigned long )arg == 0UL [2024-02-05 10:27:23,041 INFO L101 nessWitnessExtractor]: Location invariant before [L727-L727] ((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (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)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:23,041 INFO L101 nessWitnessExtractor]: Location invariant before [L784-L784] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (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)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:23,041 INFO L101 nessWitnessExtractor]: Location invariant before [L18-L18] ((0 <= expression) && (expression <= 1)) && (expression == 0 || expression == 1) [2024-02-05 10:27:23,041 INFO L101 nessWitnessExtractor]: Location invariant before [L740-L740] (unsigned long )arg == 0UL [2024-02-05 10:27:23,041 INFO L101 nessWitnessExtractor]: Location invariant before [L724-L724] (((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p0_EAX <= 127)) && (__unbuffered_p1_EAX <= 1)) && (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)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:23,042 INFO L101 nessWitnessExtractor]: Location invariant before [L747-L747] ((((((((((((((((0 <= __unbuffered_p0_EAX) && (0 <= __unbuffered_p1_EAX)) && (0 <= x)) && (0 <= y)) && (1 <= __unbuffered_cnt)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (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)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:23,042 INFO L101 nessWitnessExtractor]: Location invariant before [L774-L774] ((((((__unbuffered_cnt == 0) && (__unbuffered_p0_EAX == 0)) && (__unbuffered_p1_EAX == 0)) && (main$tmp_guard0 == (_Bool)0)) && (main$tmp_guard1 == (_Bool)0)) && (x == 0)) && (y == 0) [2024-02-05 10:27:23,042 INFO L101 nessWitnessExtractor]: Location invariant before [L726-L726] ((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (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)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:23,042 INFO L101 nessWitnessExtractor]: Location invariant before [L743-L743] (unsigned long )arg == 0UL [2024-02-05 10:27:23,042 INFO L101 nessWitnessExtractor]: Location invariant before [L723-L723] ((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (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)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:23,042 INFO L101 nessWitnessExtractor]: Location invariant after [L18-L18] expression == 1 [2024-02-05 10:27:23,043 INFO L101 nessWitnessExtractor]: Location invariant before [L781-L781] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (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)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:23,044 INFO L101 nessWitnessExtractor]: Location invariant before [L757-L757] (unsigned long )arg == 0UL [2024-02-05 10:27:23,044 INFO L101 nessWitnessExtractor]: Location invariant before [L729-L729] ((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (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)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:23,044 INFO L101 nessWitnessExtractor]: Location invariant before [L758-L758] ((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (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)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:23,044 INFO L101 nessWitnessExtractor]: Location invariant before [L725-L725] (unsigned long )arg == 0UL [2024-02-05 10:27:23,045 INFO L101 nessWitnessExtractor]: Location invariant before [L746-L746] ((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (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)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:23,045 INFO L101 nessWitnessExtractor]: Location invariant before [L787-L787] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= __unbuffered_p1_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 2)) && (__unbuffered_p1_EAX <= 1)) && (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)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:23,100 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-02-05 10:27:23,239 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/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-02-05 10:27:23,323 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-05 10:27:23,331 INFO L204 MainTranslator]: Completed pre-run Start Parsing Local [2024-02-05 10:27:23,358 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/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] Start Parsing Local Start Parsing Local [2024-02-05 10:27:23,359 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 [2024-02-05 10:27:23,484 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-05 10:27:23,513 INFO L208 MainTranslator]: Completed translation [2024-02-05 10:27:23,515 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:27:23 WrapperNode [2024-02-05 10:27:23,515 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-05 10:27:23,516 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-05 10:27:23,516 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-05 10:27:23,517 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-05 10:27:23,522 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 05.02 10:27:23" (1/1) ... [2024-02-05 10:27:23,545 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 05.02 10:27:23" (1/1) ... [2024-02-05 10:27:23,563 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 78 [2024-02-05 10:27:23,563 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-05 10:27:23,565 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-05 10:27:23,565 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-05 10:27:23,565 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-05 10:27:23,573 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:27:23" (1/1) ... [2024-02-05 10:27:23,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:27:23" (1/1) ... [2024-02-05 10:27:23,576 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:27:23" (1/1) ... [2024-02-05 10:27:23,588 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]. [2024-02-05 10:27:23,589 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:27:23" (1/1) ... [2024-02-05 10:27:23,589 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:27:23" (1/1) ... [2024-02-05 10:27:23,597 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:27:23" (1/1) ... [2024-02-05 10:27:23,599 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:27:23" (1/1) ... [2024-02-05 10:27:23,600 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:27:23" (1/1) ... [2024-02-05 10:27:23,602 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:27:23" (1/1) ... [2024-02-05 10:27:23,605 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-05 10:27:23,605 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-05 10:27:23,605 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-05 10:27:23,605 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-05 10:27:23,606 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:27:23" (1/1) ... [2024-02-05 10:27:23,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-05 10:27:23,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-05 10:27:23,633 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) [2024-02-05 10:27:23,642 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 [2024-02-05 10:27:23,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-05 10:27:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-05 10:27:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-05 10:27:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-05 10:27:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-05 10:27:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-05 10:27:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-05 10:27:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-05 10:27:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-02-05 10:27:23,666 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-02-05 10:27:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-02-05 10:27:23,666 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-02-05 10:27:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-02-05 10:27:23,667 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-02-05 10:27:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-05 10:27:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-05 10:27:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-05 10:27:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-05 10:27:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-05 10:27:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-05 10:27:23,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-05 10:27:23,669 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-05 10:27:23,787 INFO L244 CfgBuilder]: Building ICFG [2024-02-05 10:27:23,789 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-05 10:27:24,192 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-05 10:27:24,192 INFO L293 CfgBuilder]: Performing block encoding [2024-02-05 10:27:24,407 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-05 10:27:24,407 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-05 10:27:24,408 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.02 10:27:24 BoogieIcfgContainer [2024-02-05 10:27:24,408 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-05 10:27:24,411 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-05 10:27:24,411 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-05 10:27:24,414 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-05 10:27:24,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 10:27:22" (1/4) ... [2024-02-05 10:27:24,414 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af59b65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 10:27:24, skipping insertion in model container [2024-02-05 10:27:24,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 05.02 10:27:22" (2/4) ... [2024-02-05 10:27:24,415 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af59b65 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 05.02 10:27:24, skipping insertion in model container [2024-02-05 10:27:24,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:27:23" (3/4) ... [2024-02-05 10:27:24,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af59b65 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 05.02 10:27:24, skipping insertion in model container [2024-02-05 10:27:24,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.02 10:27:24" (4/4) ... [2024-02-05 10:27:24,417 INFO L112 eAbstractionObserver]: Analyzing ICFG safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-02-05 10:27:24,431 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-05 10:27:24,431 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 43 error locations. [2024-02-05 10:27:24,431 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-05 10:27:24,512 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-05 10:27:24,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 93 transitions, 198 flow [2024-02-05 10:27:24,623 INFO L124 PetriNetUnfolderBase]: 1/90 cut-off events. [2024-02-05 10:27:24,623 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-05 10:27:24,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 90 events. 1/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 377 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2024-02-05 10:27:24,628 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 93 transitions, 198 flow [2024-02-05 10:27:24,631 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 90 transitions, 189 flow [2024-02-05 10:27:24,643 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-05 10:27:24,649 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;@6ddf0123, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-05 10:27:24,650 INFO L358 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2024-02-05 10:27:24,652 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-05 10:27:24,652 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-05 10:27:24,652 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-05 10:27:24,652 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:27:24,653 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-05 10:27:24,653 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 76 more)] === [2024-02-05 10:27:24,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:27:24,675 INFO L85 PathProgramCache]: Analyzing trace with hash 12551, now seen corresponding path program 1 times [2024-02-05 10:27:24,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:27:24,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190889043] [2024-02-05 10:27:24,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:27:24,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:27:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:27:25,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:27:25,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:27:25,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190889043] [2024-02-05 10:27:25,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190889043] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:27:25,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:27:25,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-05 10:27:25,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909516218] [2024-02-05 10:27:25,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:27:25,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-05 10:27:25,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:27:25,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-05 10:27:25,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-05 10:27:25,077 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 93 [2024-02-05 10:27:25,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 90 transitions, 189 flow. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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) [2024-02-05 10:27:25,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:27:25,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 93 [2024-02-05 10:27:25,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:27:29,238 INFO L124 PetriNetUnfolderBase]: 22351/39914 cut-off events. [2024-02-05 10:27:29,238 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-02-05 10:27:29,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71258 conditions, 39914 events. 22351/39914 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 2097. Compared 394617 event pairs, 13819 based on Foata normal form. 800/24825 useless extension candidates. Maximal degree in co-relation 71245. Up to 30765 conditions per place. [2024-02-05 10:27:29,483 INFO L140 encePairwiseOnDemand]: 75/93 looper letters, 54 selfloop transitions, 4 changer transitions 0/94 dead transitions. [2024-02-05 10:27:29,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 94 transitions, 319 flow [2024-02-05 10:27:29,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-05 10:27:29,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-05 10:27:29,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 195 transitions. [2024-02-05 10:27:29,493 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6989247311827957 [2024-02-05 10:27:29,494 INFO L175 Difference]: Start difference. First operand has 99 places, 90 transitions, 189 flow. Second operand 3 states and 195 transitions. [2024-02-05 10:27:29,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 94 transitions, 319 flow [2024-02-05 10:27:29,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 94 transitions, 314 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-05 10:27:29,501 INFO L231 Difference]: Finished difference. Result has 88 places, 81 transitions, 190 flow [2024-02-05 10:27:29,502 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=88, PETRI_TRANSITIONS=81} [2024-02-05 10:27:29,504 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -11 predicate places. [2024-02-05 10:27:29,504 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 81 transitions, 190 flow [2024-02-05 10:27:29,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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) [2024-02-05 10:27:29,505 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:27:29,505 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-05 10:27:29,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-05 10:27:29,505 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 76 more)] === [2024-02-05 10:27:29,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:27:29,506 INFO L85 PathProgramCache]: Analyzing trace with hash 374399309, now seen corresponding path program 1 times [2024-02-05 10:27:29,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:27:29,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658774686] [2024-02-05 10:27:29,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:27:29,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:27:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:27:29,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:27:29,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:27:29,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658774686] [2024-02-05 10:27:29,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658774686] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:27:29,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:27:29,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-05 10:27:29,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875596921] [2024-02-05 10:27:29,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:27:29,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-05 10:27:29,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:27:29,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-05 10:27:29,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-05 10:27:29,581 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 93 [2024-02-05 10:27:29,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 81 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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) [2024-02-05 10:27:29,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:27:29,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 93 [2024-02-05 10:27:29,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:27:33,463 INFO L124 PetriNetUnfolderBase]: 24561/42103 cut-off events. [2024-02-05 10:27:33,463 INFO L125 PetriNetUnfolderBase]: For 3923/3923 co-relation queries the response was YES. [2024-02-05 10:27:33,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81129 conditions, 42103 events. 24561/42103 cut-off events. For 3923/3923 co-relation queries the response was YES. Maximal size of possible extension queue 2066. Compared 404596 event pairs, 11677 based on Foata normal form. 3480/33405 useless extension candidates. Maximal degree in co-relation 81116. Up to 31952 conditions per place. [2024-02-05 10:27:33,706 INFO L140 encePairwiseOnDemand]: 86/93 looper letters, 76 selfloop transitions, 2 changer transitions 0/108 dead transitions. [2024-02-05 10:27:33,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 108 transitions, 418 flow [2024-02-05 10:27:33,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-05 10:27:33,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-05 10:27:33,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 214 transitions. [2024-02-05 10:27:33,709 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5752688172043011 [2024-02-05 10:27:33,709 INFO L175 Difference]: Start difference. First operand has 88 places, 81 transitions, 190 flow. Second operand 4 states and 214 transitions. [2024-02-05 10:27:33,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 108 transitions, 418 flow [2024-02-05 10:27:33,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 108 transitions, 412 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-05 10:27:33,711 INFO L231 Difference]: Finished difference. Result has 85 places, 76 transitions, 180 flow [2024-02-05 10:27:33,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=180, PETRI_PLACES=85, PETRI_TRANSITIONS=76} [2024-02-05 10:27:33,712 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -14 predicate places. [2024-02-05 10:27:33,713 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 76 transitions, 180 flow [2024-02-05 10:27:33,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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) [2024-02-05 10:27:33,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:27:33,713 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-05 10:27:33,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-05 10:27:33,713 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 76 more)] === [2024-02-05 10:27:33,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:27:33,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1278522871, now seen corresponding path program 1 times [2024-02-05 10:27:33,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:27:33,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170334559] [2024-02-05 10:27:33,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:27:33,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:27:33,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:27:33,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:27:33,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:27:33,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170334559] [2024-02-05 10:27:33,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170334559] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:27:33,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:27:33,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-05 10:27:33,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512241750] [2024-02-05 10:27:33,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:27:33,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-05 10:27:33,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:27:33,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-05 10:27:33,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-02-05 10:27:33,941 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 93 [2024-02-05 10:27:33,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 76 transitions, 180 flow. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 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) [2024-02-05 10:27:33,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:27:33,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 93 [2024-02-05 10:27:33,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:27:38,870 INFO L124 PetriNetUnfolderBase]: 33621/59113 cut-off events. [2024-02-05 10:27:38,870 INFO L125 PetriNetUnfolderBase]: For 5809/5809 co-relation queries the response was YES. [2024-02-05 10:27:39,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112656 conditions, 59113 events. 33621/59113 cut-off events. For 5809/5809 co-relation queries the response was YES. Maximal size of possible extension queue 2936. Compared 593995 event pairs, 21517 based on Foata normal form. 34/42119 useless extension candidates. Maximal degree in co-relation 112642. Up to 46189 conditions per place. [2024-02-05 10:27:39,222 INFO L140 encePairwiseOnDemand]: 86/93 looper letters, 69 selfloop transitions, 7 changer transitions 0/102 dead transitions. [2024-02-05 10:27:39,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 102 transitions, 398 flow [2024-02-05 10:27:39,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-05 10:27:39,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-05 10:27:39,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 194 transitions. [2024-02-05 10:27:39,224 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.521505376344086 [2024-02-05 10:27:39,224 INFO L175 Difference]: Start difference. First operand has 85 places, 76 transitions, 180 flow. Second operand 4 states and 194 transitions. [2024-02-05 10:27:39,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 102 transitions, 398 flow [2024-02-05 10:27:39,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 102 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-05 10:27:39,227 INFO L231 Difference]: Finished difference. Result has 88 places, 79 transitions, 215 flow [2024-02-05 10:27:39,227 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=215, PETRI_PLACES=88, PETRI_TRANSITIONS=79} [2024-02-05 10:27:39,228 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -11 predicate places. [2024-02-05 10:27:39,228 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 79 transitions, 215 flow [2024-02-05 10:27:39,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 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) [2024-02-05 10:27:39,228 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:27:39,228 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-02-05 10:27:39,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-05 10:27:39,229 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 76 more)] === [2024-02-05 10:27:39,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:27:39,229 INFO L85 PathProgramCache]: Analyzing trace with hash -981704933, now seen corresponding path program 1 times [2024-02-05 10:27:39,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:27:39,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652394009] [2024-02-05 10:27:39,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:27:39,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:27:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:27:39,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:27:39,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:27:39,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652394009] [2024-02-05 10:27:39,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652394009] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:27:39,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:27:39,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-05 10:27:39,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476974020] [2024-02-05 10:27:39,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:27:39,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-05 10:27:39,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:27:39,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-05 10:27:39,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-05 10:27:39,312 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 93 [2024-02-05 10:27:39,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 79 transitions, 215 flow. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 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) [2024-02-05 10:27:39,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:27:39,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 93 [2024-02-05 10:27:39,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:27:43,672 INFO L124 PetriNetUnfolderBase]: 25826/41874 cut-off events. [2024-02-05 10:27:43,672 INFO L125 PetriNetUnfolderBase]: For 6023/6062 co-relation queries the response was YES. [2024-02-05 10:27:43,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85034 conditions, 41874 events. 25826/41874 cut-off events. For 6023/6062 co-relation queries the response was YES. Maximal size of possible extension queue 2145. Compared 378120 event pairs, 2608 based on Foata normal form. 3791/35214 useless extension candidates. Maximal degree in co-relation 85018. Up to 33886 conditions per place. [2024-02-05 10:27:43,949 INFO L140 encePairwiseOnDemand]: 86/93 looper letters, 84 selfloop transitions, 2 changer transitions 0/112 dead transitions. [2024-02-05 10:27:43,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 112 transitions, 487 flow [2024-02-05 10:27:43,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-05 10:27:43,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-05 10:27:43,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 219 transitions. [2024-02-05 10:27:43,951 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5887096774193549 [2024-02-05 10:27:43,951 INFO L175 Difference]: Start difference. First operand has 88 places, 79 transitions, 215 flow. Second operand 4 states and 219 transitions. [2024-02-05 10:27:43,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 112 transitions, 487 flow [2024-02-05 10:27:43,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 112 transitions, 467 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-05 10:27:43,954 INFO L231 Difference]: Finished difference. Result has 84 places, 74 transitions, 197 flow [2024-02-05 10:27:43,954 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=197, PETRI_PLACES=84, PETRI_TRANSITIONS=74} [2024-02-05 10:27:43,955 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -15 predicate places. [2024-02-05 10:27:43,955 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 74 transitions, 197 flow [2024-02-05 10:27:43,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 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) [2024-02-05 10:27:43,955 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:27:43,955 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-05 10:27:43,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-05 10:27:43,956 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 76 more)] === [2024-02-05 10:27:43,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:27:43,957 INFO L85 PathProgramCache]: Analyzing trace with hash -368081391, now seen corresponding path program 1 times [2024-02-05 10:27:43,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:27:43,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684290513] [2024-02-05 10:27:43,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:27:43,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:27:43,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:27:44,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:27:44,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:27:44,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684290513] [2024-02-05 10:27:44,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684290513] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:27:44,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:27:44,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-05 10:27:44,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742876401] [2024-02-05 10:27:44,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:27:44,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-05 10:27:44,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:27:44,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-05 10:27:44,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-02-05 10:27:44,228 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 93 [2024-02-05 10:27:44,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 74 transitions, 197 flow. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 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) [2024-02-05 10:27:44,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:27:44,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 93 [2024-02-05 10:27:44,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:27:49,570 INFO L124 PetriNetUnfolderBase]: 35444/61166 cut-off events. [2024-02-05 10:27:49,570 INFO L125 PetriNetUnfolderBase]: For 8666/8714 co-relation queries the response was YES. [2024-02-05 10:27:49,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120488 conditions, 61166 events. 35444/61166 cut-off events. For 8666/8714 co-relation queries the response was YES. Maximal size of possible extension queue 2899. Compared 598234 event pairs, 25147 based on Foata normal form. 60/45191 useless extension candidates. Maximal degree in co-relation 120473. Up to 49327 conditions per place. [2024-02-05 10:27:50,202 INFO L140 encePairwiseOnDemand]: 86/93 looper letters, 63 selfloop transitions, 10 changer transitions 0/95 dead transitions. [2024-02-05 10:27:50,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 95 transitions, 404 flow [2024-02-05 10:27:50,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-05 10:27:50,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-05 10:27:50,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 188 transitions. [2024-02-05 10:27:50,203 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5053763440860215 [2024-02-05 10:27:50,203 INFO L175 Difference]: Start difference. First operand has 84 places, 74 transitions, 197 flow. Second operand 4 states and 188 transitions. [2024-02-05 10:27:50,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 95 transitions, 404 flow [2024-02-05 10:27:50,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 95 transitions, 398 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-05 10:27:50,206 INFO L231 Difference]: Finished difference. Result has 87 places, 78 transitions, 248 flow [2024-02-05 10:27:50,206 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=248, PETRI_PLACES=87, PETRI_TRANSITIONS=78} [2024-02-05 10:27:50,206 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -12 predicate places. [2024-02-05 10:27:50,207 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 78 transitions, 248 flow [2024-02-05 10:27:50,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 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) [2024-02-05 10:27:50,207 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:27:50,207 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-05 10:27:50,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-05 10:27:50,207 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting P2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 76 more)] === [2024-02-05 10:27:50,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:27:50,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1471377641, now seen corresponding path program 1 times [2024-02-05 10:27:50,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:27:50,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11181959] [2024-02-05 10:27:50,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:27:50,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:27:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:27:50,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:27:50,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:27:50,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11181959] [2024-02-05 10:27:50,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11181959] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:27:50,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:27:50,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-05 10:27:50,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603947632] [2024-02-05 10:27:50,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:27:50,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-05 10:27:50,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:27:50,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-05 10:27:50,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-05 10:27:50,272 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 93 [2024-02-05 10:27:50,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 78 transitions, 248 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) [2024-02-05 10:27:50,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:27:50,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 93 [2024-02-05 10:27:50,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand