./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.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/safe030_tso.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 59af5db6 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/safe030_tso.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/safe030_tso.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-59af5db-m [2024-02-02 09:14:48,486 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 09:14:48,546 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 09:14:48,549 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 09:14:48,551 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 09:14:48,578 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 09:14:48,579 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 09:14:48,579 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 09:14:48,580 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 09:14:48,583 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 09:14:48,583 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 09:14:48,583 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 09:14:48,584 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 09:14:48,585 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 09:14:48,585 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 09:14:48,585 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 09:14:48,586 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 09:14:48,586 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 09:14:48,586 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 09:14:48,586 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 09:14:48,586 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 09:14:48,587 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 09:14:48,587 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 09:14:48,587 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 09:14:48,587 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 09:14:48,587 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 09:14:48,588 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 09:14:48,588 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 09:14:48,588 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 09:14:48,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 09:14:48,589 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 09:14:48,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 09:14:48,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:14:48,590 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 09:14:48,590 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 09:14:48,590 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 09:14:48,590 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 09:14:48,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 09:14:48,591 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 09:14:48,591 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 09:14:48,591 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 09:14:48,591 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 09:14:48,592 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 09:14:48,592 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 09:14:48,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 09:14:48,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 09:14:48,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 09:14:48,839 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 09:14:48,839 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 09:14:48,840 INFO L431 ainManager$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/safe030_tso.yml/witness.yml [2024-02-02 09:14:49,054 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 09:14:49,055 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 09:14:49,056 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.i [2024-02-02 09:14:50,121 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 09:14:50,385 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 09:14:50,387 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.i [2024-02-02 09:14:50,399 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c839cf61d/d11a0b8914144303865aab70585a4cda/FLAGb4f575493 [2024-02-02 09:14:50,411 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c839cf61d/d11a0b8914144303865aab70585a4cda [2024-02-02 09:14:50,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 09:14:50,412 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 09:14:50,415 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 09:14:50,415 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 09:14:50,419 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 09:14:50,419 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:14:49" (1/2) ... [2024-02-02 09:14:50,420 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fd3aac6 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:14:50, skipping insertion in model container [2024-02-02 09:14:50,421 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:14:49" (1/2) ... [2024-02-02 09:14:50,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6c636d0c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:14:50, skipping insertion in model container [2024-02-02 09:14:50,422 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:14:50" (2/2) ... [2024-02-02 09:14:50,423 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fd3aac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:50, skipping insertion in model container [2024-02-02 09:14:50,423 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:14:50" (2/2) ... [2024-02-02 09:14:50,424 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 09:14:50,611 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 09:14:50,615 INFO L101 nessWitnessExtractor]: Location invariant before [L724-L724] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-02 09:14:50,616 INFO L101 nessWitnessExtractor]: Location invariant before [L759-L759] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-02 09:14:50,616 INFO L101 nessWitnessExtractor]: Location invariant before [L737-L737] ((((((((((((0 <= __unbuffered_cnt) && (0 <= y)) && (0 <= z)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && (x == 2)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-02 09:14:50,616 INFO L101 nessWitnessExtractor]: Location invariant before [L755-L755] ((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z == 1)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2) [2024-02-02 09:14:50,616 INFO L101 nessWitnessExtractor]: Location invariant before [L742-L742] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-02 09:14:50,616 INFO L101 nessWitnessExtractor]: Location invariant before [L738-L738] (unsigned long )arg == 0UL [2024-02-02 09:14:50,617 INFO L101 nessWitnessExtractor]: Location invariant before [L726-L726] (unsigned long )arg == 0UL [2024-02-02 09:14:50,617 INFO L101 nessWitnessExtractor]: Location invariant before [L739-L739] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-02 09:14:50,617 INFO L101 nessWitnessExtractor]: Location invariant before [L720-L720] (unsigned long )arg == 0UL [2024-02-02 09:14:50,617 INFO L101 nessWitnessExtractor]: Location invariant before [L735-L735] (unsigned long )arg == 0UL [2024-02-02 09:14:50,617 INFO L101 nessWitnessExtractor]: Location invariant before [L746-L746] (unsigned long )arg == 0UL [2024-02-02 09:14:50,617 INFO L101 nessWitnessExtractor]: Location invariant before [L781-L781] ((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-02 09:14:50,617 INFO L101 nessWitnessExtractor]: Location invariant before [L743-L743] (unsigned long )arg == 0UL [2024-02-02 09:14:50,618 INFO L101 nessWitnessExtractor]: Location invariant before [L751-L751] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-02 09:14:50,618 INFO L101 nessWitnessExtractor]: Location invariant before [L18-L18] ((((expression == 0) && (0 <= expression)) && (expression <= 1)) && (expression == 0 || expression == 1)) && (expression == 1) [2024-02-02 09:14:50,618 INFO L101 nessWitnessExtractor]: Location invariant before [L722-L722] ((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z == 2)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2) [2024-02-02 09:14:50,618 INFO L101 nessWitnessExtractor]: Location invariant before [L744-L744] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-02 09:14:50,618 INFO L101 nessWitnessExtractor]: Location invariant before [L757-L757] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-02 09:14:50,618 INFO L101 nessWitnessExtractor]: Location invariant before [L785-L785] ((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-02 09:14:50,619 INFO L101 nessWitnessExtractor]: Location invariant before [L725-L725] ((((((((((((0 <= __unbuffered_cnt) && (0 <= y)) && (0 <= z)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && (x == 1)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-02 09:14:50,619 INFO L101 nessWitnessExtractor]: Location invariant before [L758-L758] (unsigned long )arg == 0UL [2024-02-02 09:14:50,619 INFO L101 nessWitnessExtractor]: Location invariant before [L756-L756] (unsigned long )arg == 0UL [2024-02-02 09:14:50,619 INFO L101 nessWitnessExtractor]: Location invariant before [L761-L761] (unsigned long )arg == 0UL [2024-02-02 09:14:50,620 INFO L101 nessWitnessExtractor]: Location invariant before [L729-L729] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-02 09:14:50,620 INFO L101 nessWitnessExtractor]: Location invariant before [L750-L750] (unsigned long )arg == 0UL [2024-02-02 09:14:50,620 INFO L101 nessWitnessExtractor]: Location invariant before [L753-L753] (unsigned long )arg == 0UL [2024-02-02 09:14:50,620 INFO L101 nessWitnessExtractor]: Location invariant before [L730-L730] (((((((((((((((0 <= x) && (0 <= y)) && (0 <= z)) && (1 <= __unbuffered_cnt)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-02 09:14:50,620 INFO L101 nessWitnessExtractor]: Location invariant before [L754-L754] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-02 09:14:50,620 INFO L101 nessWitnessExtractor]: Location invariant before [L727-L727] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-02 09:14:50,620 INFO L101 nessWitnessExtractor]: Location invariant before [L736-L736] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-02 09:14:50,620 INFO L101 nessWitnessExtractor]: Location invariant before [L775-L775] (((((__unbuffered_cnt == 0) && (main$tmp_guard0 == (_Bool)0)) && (main$tmp_guard1 == (_Bool)0)) && (x == 0)) && (y == 0)) && (z == 0) [2024-02-02 09:14:50,621 INFO L101 nessWitnessExtractor]: Location invariant before [L788-L788] ((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-02 09:14:50,621 INFO L101 nessWitnessExtractor]: Location invariant before [L752-L752] ((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (z <= 2)) && (z <= 127)) && (y == 2)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-02 09:14:50,621 INFO L101 nessWitnessExtractor]: Location invariant before [L787-L787] ((((((((0 <= __unbuffered_cnt) && (0 <= z)) && (z <= 2)) && (z <= 127)) && (x == 2)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (y == 2 || (((0 <= y && y <= 2) && y <= 127) && ((y == 0 || y == 1) || y == 2)))) && ((z == 0 || z == 1) || z == 2) [2024-02-02 09:14:50,621 INFO L101 nessWitnessExtractor]: Location invariant before [L721-L721] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-02 09:14:50,621 INFO L101 nessWitnessExtractor]: Location invariant before [L740-L740] ((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (z <= 2)) && (z <= 127)) && (y == 1)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-02 09:14:50,622 INFO L101 nessWitnessExtractor]: Location invariant before [L723-L723] (unsigned long )arg == 0UL [2024-02-02 09:14:50,622 INFO L101 nessWitnessExtractor]: Location invariant before [L741-L741] (unsigned long )arg == 0UL [2024-02-02 09:14:50,623 INFO L101 nessWitnessExtractor]: Location invariant before [L745-L745] (((((((((((((((0 <= x) && (0 <= y)) && (0 <= z)) && (1 <= __unbuffered_cnt)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-02 09:14:50,623 INFO L101 nessWitnessExtractor]: Location invariant before [L782-L782] ((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-02 09:14:50,623 INFO L101 nessWitnessExtractor]: Location invariant before [L731-L731] (unsigned long )arg == 0UL [2024-02-02 09:14:50,624 INFO L101 nessWitnessExtractor]: Location invariant before [L728-L728] (unsigned long )arg == 0UL [2024-02-02 09:14:50,624 INFO L101 nessWitnessExtractor]: Location invariant before [L760-L760] (((((((((((((((0 <= x) && (0 <= y)) && (0 <= z)) && (1 <= __unbuffered_cnt)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-02 09:14:50,663 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-02 09:14:50,811 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/safe030_tso.i[945,958] [2024-02-02 09:14:50,937 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:14:50,949 INFO L202 MainTranslator]: Completed pre-run [2024-02-02 09:14:50,958 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.i[945,958] [2024-02-02 09:14:50,958 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_assert(int expression) { if (!expression) { ERROR: {reach_error();abort();} }; return; } 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 [2024-02-02 09:14:51,097 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:14:51,122 INFO L206 MainTranslator]: Completed translation [2024-02-02 09:14:51,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:51 WrapperNode [2024-02-02 09:14:51,124 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 09:14:51,125 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 09:14:51,125 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 09:14:51,126 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 09:14:51,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:51" (1/1) ... [2024-02-02 09:14:51,160 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:51" (1/1) ... [2024-02-02 09:14:51,191 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2024-02-02 09:14:51,193 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 09:14:51,194 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 09:14:51,194 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 09:14:51,194 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 09:14:51,202 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:51" (1/1) ... [2024-02-02 09:14:51,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:51" (1/1) ... [2024-02-02 09:14:51,205 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:51" (1/1) ... [2024-02-02 09:14:51,218 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]. [2024-02-02 09:14:51,218 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:51" (1/1) ... [2024-02-02 09:14:51,219 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:51" (1/1) ... [2024-02-02 09:14:51,227 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:51" (1/1) ... [2024-02-02 09:14:51,228 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:51" (1/1) ... [2024-02-02 09:14:51,230 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:51" (1/1) ... [2024-02-02 09:14:51,231 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:51" (1/1) ... [2024-02-02 09:14:51,234 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 09:14:51,235 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 09:14:51,235 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 09:14:51,235 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 09:14:51,236 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:51" (1/1) ... [2024-02-02 09:14:51,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:14:51,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 09:14:51,283 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) [2024-02-02 09:14:51,305 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 [2024-02-02 09:14:51,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 09:14:51,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 09:14:51,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 09:14:51,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-02 09:14:51,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-02 09:14:51,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 09:14:51,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 09:14:51,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 09:14:51,334 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-02-02 09:14:51,334 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-02-02 09:14:51,334 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-02-02 09:14:51,334 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-02-02 09:14:51,334 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-02-02 09:14:51,334 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-02-02 09:14:51,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 09:14:51,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 09:14:51,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 09:14:51,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-02 09:14:51,335 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-02 09:14:51,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 09:14:51,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 09:14:51,337 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-02 09:14:51,447 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 09:14:51,450 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 09:14:51,968 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 09:14:51,968 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 09:14:52,158 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 09:14:52,158 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-02 09:14:52,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:14:52 BoogieIcfgContainer [2024-02-02 09:14:52,159 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 09:14:52,161 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 09:14:52,161 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 09:14:52,163 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 09:14:52,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:14:49" (1/4) ... [2024-02-02 09:14:52,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eab5deb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:14:52, skipping insertion in model container [2024-02-02 09:14:52,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:14:50" (2/4) ... [2024-02-02 09:14:52,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eab5deb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:14:52, skipping insertion in model container [2024-02-02 09:14:52,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:14:51" (3/4) ... [2024-02-02 09:14:52,166 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eab5deb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:14:52, skipping insertion in model container [2024-02-02 09:14:52,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:14:52" (4/4) ... [2024-02-02 09:14:52,167 INFO L112 eAbstractionObserver]: Analyzing ICFG safe030_tso.i [2024-02-02 09:14:52,180 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 09:14:52,181 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 43 error locations. [2024-02-02 09:14:52,181 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 09:14:52,262 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-02 09:14:52,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 93 transitions, 198 flow [2024-02-02 09:14:52,339 INFO L124 PetriNetUnfolderBase]: 1/90 cut-off events. [2024-02-02 09:14:52,339 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:14:52,344 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 365 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. [2024-02-02 09:14:52,344 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 93 transitions, 198 flow [2024-02-02 09:14:52,371 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 90 transitions, 189 flow [2024-02-02 09:14:52,383 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:14:52,388 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;@4227a433, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:14:52,389 INFO L358 AbstractCegarLoop]: Starting to check reachability of 82 error locations. [2024-02-02 09:14:52,391 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:14:52,391 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-02 09:14:52,391 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:14:52,391 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:14:52,392 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-02 09:14:52,392 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-02 09:14:52,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:14:52,399 INFO L85 PathProgramCache]: Analyzing trace with hash 12721, now seen corresponding path program 1 times [2024-02-02 09:14:52,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:14:52,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044640274] [2024-02-02 09:14:52,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:14:52,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:14:52,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:14:52,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:14:52,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:14:52,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044640274] [2024-02-02 09:14:52,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044640274] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:14:52,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:14:52,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:14:52,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402084741] [2024-02-02 09:14:52,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:14:52,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:14:52,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:14:52,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:14:52,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:14:52,792 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 93 [2024-02-02 09:14:52,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 90 transitions, 189 flow. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-02-02 09:14:52,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:14:52,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 93 [2024-02-02 09:14:52,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:14:57,747 INFO L124 PetriNetUnfolderBase]: 28887/45073 cut-off events. [2024-02-02 09:14:57,748 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2024-02-02 09:14:57,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85345 conditions, 45073 events. 28887/45073 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 2177. Compared 385827 event pairs, 22247 based on Foata normal form. 1000/27468 useless extension candidates. Maximal degree in co-relation 85332. Up to 39969 conditions per place. [2024-02-02 09:14:58,105 INFO L140 encePairwiseOnDemand]: 74/93 looper letters, 52 selfloop transitions, 4 changer transitions 0/89 dead transitions. [2024-02-02 09:14:58,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 89 transitions, 305 flow [2024-02-02 09:14:58,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:14:58,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:14:58,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 183 transitions. [2024-02-02 09:14:58,116 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6559139784946236 [2024-02-02 09:14:58,117 INFO L175 Difference]: Start difference. First operand has 99 places, 90 transitions, 189 flow. Second operand 3 states and 183 transitions. [2024-02-02 09:14:58,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 89 transitions, 305 flow [2024-02-02 09:14:58,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 89 transitions, 300 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-02 09:14:58,123 INFO L231 Difference]: Finished difference. Result has 87 places, 80 transitions, 188 flow [2024-02-02 09:14:58,124 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=188, PETRI_PLACES=87, PETRI_TRANSITIONS=80} [2024-02-02 09:14:58,128 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -12 predicate places. [2024-02-02 09:14:58,130 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 80 transitions, 188 flow [2024-02-02 09:14:58,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-02-02 09:14:58,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:14:58,131 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-02 09:14:58,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 09:14:58,136 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-02 09:14:58,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:14:58,137 INFO L85 PathProgramCache]: Analyzing trace with hash 379474478, now seen corresponding path program 1 times [2024-02-02 09:14:58,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:14:58,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113502007] [2024-02-02 09:14:58,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:14:58,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:14:58,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:14:58,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:14:58,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:14:58,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113502007] [2024-02-02 09:14:58,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113502007] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:14:58,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:14:58,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:14:58,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093953550] [2024-02-02 09:14:58,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:14:58,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:14:58,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:14:58,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:14:58,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:14:58,269 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 93 [2024-02-02 09:14:58,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 80 transitions, 188 flow. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 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) [2024-02-02 09:14:58,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:14:58,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 93 [2024-02-02 09:14:58,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:15:03,042 INFO L124 PetriNetUnfolderBase]: 31811/49124 cut-off events. [2024-02-02 09:15:03,042 INFO L125 PetriNetUnfolderBase]: For 4670/4715 co-relation queries the response was YES. [2024-02-02 09:15:03,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99104 conditions, 49124 events. 31811/49124 cut-off events. For 4670/4715 co-relation queries the response was YES. Maximal size of possible extension queue 2289. Compared 416786 event pairs, 23235 based on Foata normal form. 4456/38296 useless extension candidates. Maximal degree in co-relation 99091. Up to 41132 conditions per place. [2024-02-02 09:15:03,378 INFO L140 encePairwiseOnDemand]: 86/93 looper letters, 80 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2024-02-02 09:15:03,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 109 transitions, 428 flow [2024-02-02 09:15:03,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:15:03,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:15:03,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 206 transitions. [2024-02-02 09:15:03,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.553763440860215 [2024-02-02 09:15:03,384 INFO L175 Difference]: Start difference. First operand has 87 places, 80 transitions, 188 flow. Second operand 4 states and 206 transitions. [2024-02-02 09:15:03,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 109 transitions, 428 flow [2024-02-02 09:15:03,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 109 transitions, 422 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-02 09:15:03,388 INFO L231 Difference]: Finished difference. Result has 84 places, 75 transitions, 178 flow [2024-02-02 09:15:03,388 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=178, PETRI_PLACES=84, PETRI_TRANSITIONS=75} [2024-02-02 09:15:03,389 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -15 predicate places. [2024-02-02 09:15:03,389 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 75 transitions, 178 flow [2024-02-02 09:15:03,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 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) [2024-02-02 09:15:03,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:15:03,389 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-02 09:15:03,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-02 09:15:03,390 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-02 09:15:03,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:15:03,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1121192628, now seen corresponding path program 1 times [2024-02-02 09:15:03,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:15:03,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98934623] [2024-02-02 09:15:03,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:15:03,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:15:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:15:03,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:15:03,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:15:03,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98934623] [2024-02-02 09:15:03,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98934623] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:15:03,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:15:03,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:15:03,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220585155] [2024-02-02 09:15:03,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:15:03,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-02 09:15:03,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:15:03,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-02 09:15:03,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-02-02 09:15:03,648 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 93 [2024-02-02 09:15:03,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 75 transitions, 178 flow. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 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) [2024-02-02 09:15:03,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:15:03,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 93 [2024-02-02 09:15:03,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:15:09,640 INFO L124 PetriNetUnfolderBase]: 43753/66741 cut-off events. [2024-02-02 09:15:09,641 INFO L125 PetriNetUnfolderBase]: For 7414/7431 co-relation queries the response was YES. [2024-02-02 09:15:09,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135848 conditions, 66741 events. 43753/66741 cut-off events. For 7414/7431 co-relation queries the response was YES. Maximal size of possible extension queue 3013. Compared 570007 event pairs, 33737 based on Foata normal form. 27/47553 useless extension candidates. Maximal degree in co-relation 135834. Up to 60317 conditions per place. [2024-02-02 09:15:10,332 INFO L140 encePairwiseOnDemand]: 87/93 looper letters, 65 selfloop transitions, 7 changer transitions 0/95 dead transitions. [2024-02-02 09:15:10,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 95 transitions, 376 flow [2024-02-02 09:15:10,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:15:10,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:15:10,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 177 transitions. [2024-02-02 09:15:10,334 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47580645161290325 [2024-02-02 09:15:10,334 INFO L175 Difference]: Start difference. First operand has 84 places, 75 transitions, 178 flow. Second operand 4 states and 177 transitions. [2024-02-02 09:15:10,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 95 transitions, 376 flow [2024-02-02 09:15:10,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 95 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:15:10,338 INFO L231 Difference]: Finished difference. Result has 87 places, 78 transitions, 211 flow [2024-02-02 09:15:10,338 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=211, PETRI_PLACES=87, PETRI_TRANSITIONS=78} [2024-02-02 09:15:10,340 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -12 predicate places. [2024-02-02 09:15:10,340 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 78 transitions, 211 flow [2024-02-02 09:15:10,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 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) [2024-02-02 09:15:10,340 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:15:10,341 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:15:10,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-02 09:15:10,341 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-02 09:15:10,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:15:10,342 INFO L85 PathProgramCache]: Analyzing trace with hash -398420837, now seen corresponding path program 1 times [2024-02-02 09:15:10,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:15:10,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167630592] [2024-02-02 09:15:10,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:15:10,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:15:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:15:10,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:15:10,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:15:10,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167630592] [2024-02-02 09:15:10,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167630592] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:15:10,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:15:10,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:15:10,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706878442] [2024-02-02 09:15:10,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:15:10,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:15:10,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:15:10,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:15:10,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:15:10,451 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 93 [2024-02-02 09:15:10,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 78 transitions, 211 flow. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2024-02-02 09:15:10,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:15:10,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 93 [2024-02-02 09:15:10,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:15:15,707 INFO L124 PetriNetUnfolderBase]: 33740/55134 cut-off events. [2024-02-02 09:15:15,708 INFO L125 PetriNetUnfolderBase]: For 6464/6536 co-relation queries the response was YES. [2024-02-02 09:15:15,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109791 conditions, 55134 events. 33740/55134 cut-off events. For 6464/6536 co-relation queries the response was YES. Maximal size of possible extension queue 2608. Compared 506856 event pairs, 12063 based on Foata normal form. 4888/43020 useless extension candidates. Maximal degree in co-relation 109775. Up to 44012 conditions per place. [2024-02-02 09:15:16,125 INFO L140 encePairwiseOnDemand]: 86/93 looper letters, 89 selfloop transitions, 2 changer transitions 0/114 dead transitions. [2024-02-02 09:15:16,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 114 transitions, 497 flow [2024-02-02 09:15:16,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:15:16,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:15:16,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 212 transitions. [2024-02-02 09:15:16,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5698924731182796 [2024-02-02 09:15:16,130 INFO L175 Difference]: Start difference. First operand has 87 places, 78 transitions, 211 flow. Second operand 4 states and 212 transitions. [2024-02-02 09:15:16,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 114 transitions, 497 flow [2024-02-02 09:15:16,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 114 transitions, 477 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:15:16,133 INFO L231 Difference]: Finished difference. Result has 83 places, 73 transitions, 193 flow [2024-02-02 09:15:16,134 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=193, PETRI_PLACES=83, PETRI_TRANSITIONS=73} [2024-02-02 09:15:16,134 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -16 predicate places. [2024-02-02 09:15:16,134 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 73 transitions, 193 flow [2024-02-02 09:15:16,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2024-02-02 09:15:16,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:15:16,135 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:15:16,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-02 09:15:16,135 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P0Err4ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-02 09:15:16,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:15:16,136 INFO L85 PathProgramCache]: Analyzing trace with hash 570690991, now seen corresponding path program 1 times [2024-02-02 09:15:16,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:15:16,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100602731] [2024-02-02 09:15:16,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:15:16,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:15:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:15:16,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:15:16,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:15:16,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100602731] [2024-02-02 09:15:16,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100602731] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:15:16,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:15:16,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-02 09:15:16,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770644262] [2024-02-02 09:15:16,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:15:16,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-02-02 09:15:16,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:15:16,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-02-02 09:15:16,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-02-02 09:15:16,355 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 93 [2024-02-02 09:15:16,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 73 transitions, 193 flow. Second operand has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 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) [2024-02-02 09:15:16,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:15:16,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 93 [2024-02-02 09:15:16,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:15:22,502 INFO L124 PetriNetUnfolderBase]: 43423/66230 cut-off events. [2024-02-02 09:15:22,503 INFO L125 PetriNetUnfolderBase]: For 8334/8385 co-relation queries the response was YES. [2024-02-02 09:15:22,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137009 conditions, 66230 events. 43423/66230 cut-off events. For 8334/8385 co-relation queries the response was YES. Maximal size of possible extension queue 3055. Compared 565301 event pairs, 31123 based on Foata normal form. 34/47112 useless extension candidates. Maximal degree in co-relation 136994. Up to 59781 conditions per place. [2024-02-02 09:15:23,001 INFO L140 encePairwiseOnDemand]: 84/93 looper letters, 74 selfloop transitions, 10 changer transitions 0/102 dead transitions. [2024-02-02 09:15:23,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 102 transitions, 442 flow [2024-02-02 09:15:23,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-02 09:15:23,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-02 09:15:23,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 222 transitions. [2024-02-02 09:15:23,002 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4774193548387097 [2024-02-02 09:15:23,002 INFO L175 Difference]: Start difference. First operand has 83 places, 73 transitions, 193 flow. Second operand 5 states and 222 transitions. [2024-02-02 09:15:23,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 102 transitions, 442 flow [2024-02-02 09:15:23,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 102 transitions, 433 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:15:23,008 INFO L231 Difference]: Finished difference. Result has 86 places, 76 transitions, 236 flow [2024-02-02 09:15:23,008 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=236, PETRI_PLACES=86, PETRI_TRANSITIONS=76} [2024-02-02 09:15:23,010 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -13 predicate places. [2024-02-02 09:15:23,011 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 76 transitions, 236 flow [2024-02-02 09:15:23,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 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) [2024-02-02 09:15:23,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:15:23,011 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:15:23,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-02 09:15:23,011 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting P1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-02 09:15:23,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:15:23,012 INFO L85 PathProgramCache]: Analyzing trace with hash 533856405, now seen corresponding path program 1 times [2024-02-02 09:15:23,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:15:23,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799480490] [2024-02-02 09:15:23,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:15:23,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:15:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:15:23,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:15:23,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:15:23,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799480490] [2024-02-02 09:15:23,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799480490] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:15:23,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:15:23,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:15:23,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742433167] [2024-02-02 09:15:23,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:15:23,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-02 09:15:23,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:15:23,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-02 09:15:23,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-02-02 09:15:23,215 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 93 [2024-02-02 09:15:23,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 76 transitions, 236 flow. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 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) [2024-02-02 09:15:23,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:15:23,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 93 [2024-02-02 09:15:23,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand