./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.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/safe017_tso.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/safe017_tso.i ./goblint.2024-01-24_13-31-21.files/SV-COMP24_unreach-call/safe017_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-d8006e4-m [2024-02-05 10:27:47,598 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-05 10:27:47,665 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-05 10:27:47,670 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-05 10:27:47,671 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-05 10:27:47,693 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-05 10:27:47,694 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-05 10:27:47,694 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-05 10:27:47,695 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-05 10:27:47,698 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-05 10:27:47,698 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-05 10:27:47,698 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-05 10:27:47,699 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-05 10:27:47,700 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-05 10:27:47,700 INFO L153 SettingsManager]: * Use SBE=true [2024-02-05 10:27:47,701 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-05 10:27:47,701 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-05 10:27:47,701 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-05 10:27:47,701 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-05 10:27:47,702 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-05 10:27:47,702 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-05 10:27:47,702 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-05 10:27:47,702 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-05 10:27:47,702 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-05 10:27:47,703 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-05 10:27:47,703 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-05 10:27:47,703 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-05 10:27:47,703 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-05 10:27:47,704 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-05 10:27:47,704 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-05 10:27:47,705 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-05 10:27:47,705 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-05 10:27:47,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-05 10:27:47,705 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-05 10:27:47,705 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-05 10:27:47,706 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-05 10:27:47,706 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-05 10:27:47,706 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-05 10:27:47,706 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-05 10:27:47,706 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-05 10:27:47,706 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-05 10:27:47,707 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-05 10:27:47,707 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-05 10:27:47,707 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-05 10:27:47,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-05 10:27:47,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-05 10:27:47,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-05 10:27:47,968 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-05 10:27:47,969 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-05 10:27:47,969 INFO L431 ainManager$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/safe017_tso.yml/witness.yml [2024-02-05 10:27:48,180 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-05 10:27:48,181 INFO L274 PluginConnector]: CDTParser initialized [2024-02-05 10:27:48,181 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.i [2024-02-05 10:27:49,136 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-05 10:27:49,327 INFO L384 CDTParser]: Found 1 translation units. [2024-02-05 10:27:49,328 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_tso.i [2024-02-05 10:27:49,339 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/363f70a6a/b4e481b56ea945eda20de63f89540c12/FLAG02610fe36 [2024-02-05 10:27:49,354 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/363f70a6a/b4e481b56ea945eda20de63f89540c12 [2024-02-05 10:27:49,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-05 10:27:49,356 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-05 10:27:49,356 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-05 10:27:49,357 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-05 10:27:49,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-05 10:27:49,363 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 05.02 10:27:48" (1/2) ... [2024-02-05 10:27:49,363 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39420668 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:27:49, skipping insertion in model container [2024-02-05 10:27:49,363 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 05.02 10:27:48" (1/2) ... [2024-02-05 10:27:49,364 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@33436f60 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:27:49, skipping insertion in model container [2024-02-05 10:27:49,364 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 10:27:49" (2/2) ... [2024-02-05 10:27:49,365 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39420668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:27:49, skipping insertion in model container [2024-02-05 10:27:49,365 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 10:27:49" (2/2) ... [2024-02-05 10:27:49,365 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-05 10:27:49,635 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-05 10:27:49,636 INFO L101 nessWitnessExtractor]: Location invariant before [L741-L741] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 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)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:49,637 INFO L101 nessWitnessExtractor]: Location invariant before [L737-L737] ((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p2_EAX)) && (0 <= y)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (y <= 2)) && (y <= 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)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:49,637 INFO L101 nessWitnessExtractor]: Location invariant before [L752-L752] ((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 2)) && (x <= 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)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((x == 0 || x == 1) || x == 2) [2024-02-05 10:27:49,637 INFO L101 nessWitnessExtractor]: Location invariant before [L18-L18] expression == 1 [2024-02-05 10:27:49,637 INFO L101 nessWitnessExtractor]: Location invariant before [L720-L720] (unsigned long )arg == 0UL [2024-02-05 10:27:49,637 INFO L101 nessWitnessExtractor]: Location invariant before [L742-L742] (((((((((((((((0 <= __unbuffered_p2_EAX) && (0 <= x)) && (0 <= y)) && (1 <= __unbuffered_cnt)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 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)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:49,637 INFO L101 nessWitnessExtractor]: Location invariant before [L731-L731] (unsigned long )arg == 0UL [2024-02-05 10:27:49,637 INFO L101 nessWitnessExtractor]: Location invariant before [L784-L784] ((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p2_EAX)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 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)))) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2) [2024-02-05 10:27:49,637 INFO L101 nessWitnessExtractor]: Location invariant before [L754-L754] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 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)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:49,638 INFO L101 nessWitnessExtractor]: Location invariant before [L739-L739] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 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)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:49,638 INFO L101 nessWitnessExtractor]: Location invariant before [L750-L750] (unsigned long )arg == 0UL [2024-02-05 10:27:49,638 INFO L101 nessWitnessExtractor]: Location invariant before [L753-L753] (unsigned long )arg == 0UL [2024-02-05 10:27:49,638 INFO L101 nessWitnessExtractor]: Location invariant before [L778-L778] ((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:49,638 INFO L101 nessWitnessExtractor]: Location invariant before [L738-L738] (unsigned long )arg == 0UL [2024-02-05 10:27:49,638 INFO L101 nessWitnessExtractor]: Location invariant before [L736-L736] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 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)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:49,638 INFO L101 nessWitnessExtractor]: Location invariant before [L18-L18] expression == 0 [2024-02-05 10:27:49,638 INFO L101 nessWitnessExtractor]: Location invariant before [L758-L758] (unsigned long )arg == 0UL [2024-02-05 10:27:49,639 INFO L101 nessWitnessExtractor]: Location invariant before [L729-L729] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 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)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:49,639 INFO L101 nessWitnessExtractor]: Location invariant before [L730-L730] (((((((((((((((0 <= __unbuffered_p2_EAX) && (0 <= x)) && (0 <= y)) && (1 <= __unbuffered_cnt)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 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)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:49,639 INFO L101 nessWitnessExtractor]: Location invariant before [L728-L728] (unsigned long )arg == 0UL [2024-02-05 10:27:49,639 INFO L101 nessWitnessExtractor]: Location invariant before [L782-L782] ((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:49,639 INFO L101 nessWitnessExtractor]: Location invariant before [L772-L772] (((((__unbuffered_cnt == 0) && (__unbuffered_p2_EAX == 0)) && (main$tmp_guard0 == (_Bool)0)) && (main$tmp_guard1 == (_Bool)0)) && (x == 0)) && (y == 0) [2024-02-05 10:27:49,640 INFO L101 nessWitnessExtractor]: Location invariant before [L751-L751] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 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)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:49,640 INFO L101 nessWitnessExtractor]: Location invariant before [L743-L743] (unsigned long )arg == 0UL [2024-02-05 10:27:49,640 INFO L101 nessWitnessExtractor]: Location invariant before [L740-L740] (unsigned long )arg == 0UL [2024-02-05 10:27:49,640 INFO L101 nessWitnessExtractor]: Location invariant before [L779-L779] ((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:49,640 INFO L101 nessWitnessExtractor]: Location invariant before [L747-L747] (unsigned long )arg == 0UL [2024-02-05 10:27:49,640 INFO L101 nessWitnessExtractor]: Location invariant after [L18-L18] expression == 1 [2024-02-05 10:27:49,640 INFO L101 nessWitnessExtractor]: Location invariant before [L723-L723] (unsigned long )arg == 0UL [2024-02-05 10:27:49,641 INFO L101 nessWitnessExtractor]: Location invariant before [L726-L726] (unsigned long )arg == 0UL [2024-02-05 10:27:49,641 INFO L101 nessWitnessExtractor]: Location invariant after [L18-L18] expression == 0 [2024-02-05 10:27:49,641 INFO L101 nessWitnessExtractor]: Location invariant before [L18-L18] ((0 <= expression) && (expression <= 1)) && (expression == 0 || expression == 1) [2024-02-05 10:27:49,641 INFO L101 nessWitnessExtractor]: Location invariant before [L724-L724] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 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)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:49,641 INFO L101 nessWitnessExtractor]: Location invariant before [L735-L735] (unsigned long )arg == 0UL [2024-02-05 10:27:49,641 INFO L101 nessWitnessExtractor]: Location invariant before [L727-L727] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 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)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:49,641 INFO L101 nessWitnessExtractor]: Location invariant before [L722-L722] ((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 2)) && (x <= 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)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((x == 0 || x == 1) || x == 2) [2024-02-05 10:27:49,641 INFO L101 nessWitnessExtractor]: Location invariant before [L756-L756] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 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)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:49,642 INFO L101 nessWitnessExtractor]: Location invariant before [L755-L755] (unsigned long )arg == 0UL [2024-02-05 10:27:49,643 INFO L101 nessWitnessExtractor]: Location invariant before [L785-L785] ((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:49,643 INFO L101 nessWitnessExtractor]: Location invariant after [L18-L18] expression == 1 [2024-02-05 10:27:49,643 INFO L101 nessWitnessExtractor]: Location invariant before [L749-L749] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 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)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:49,643 INFO L101 nessWitnessExtractor]: Location invariant before [L748-L748] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 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)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:49,643 INFO L101 nessWitnessExtractor]: Location invariant before [L757-L757] (((((((((((((((0 <= __unbuffered_p2_EAX) && (0 <= x)) && (0 <= y)) && (1 <= __unbuffered_cnt)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 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)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:49,644 INFO L101 nessWitnessExtractor]: Location invariant before [L721-L721] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p2_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 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)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:49,644 INFO L101 nessWitnessExtractor]: Location invariant before [L725-L725] ((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p2_EAX)) && (0 <= y)) && (__unbuffered_p2_EAX <= 2)) && (__unbuffered_p2_EAX <= 127)) && (y <= 2)) && (y <= 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)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:27:49,676 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-02-05 10:27:49,823 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/safe017_tso.i[945,958] [2024-02-05 10:27:49,985 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-05 10:27:49,993 INFO L204 MainTranslator]: Completed pre-run Start Parsing Local [2024-02-05 10:27:50,025 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/safe017_tso.i[945,958] Start Parsing Local Start Parsing Local [2024-02-05 10:27:50,027 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 10:27:50,133 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-05 10:27:50,160 INFO L208 MainTranslator]: Completed translation [2024-02-05 10:27:50,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:27:50 WrapperNode [2024-02-05 10:27:50,161 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-05 10:27:50,162 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-05 10:27:50,162 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-05 10:27:50,163 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-05 10:27:50,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:27:50" (1/1) ... [2024-02-05 10:27:50,211 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:27:50" (1/1) ... [2024-02-05 10:27:50,253 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2024-02-05 10:27:50,254 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-05 10:27:50,254 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-05 10:27:50,255 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-05 10:27:50,255 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-05 10:27:50,263 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:27:50" (1/1) ... [2024-02-05 10:27:50,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:27:50" (1/1) ... [2024-02-05 10:27:50,275 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:27:50" (1/1) ... [2024-02-05 10:27:50,294 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 10:27:50,294 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:27:50" (1/1) ... [2024-02-05 10:27:50,295 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:27:50" (1/1) ... [2024-02-05 10:27:50,305 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:27:50" (1/1) ... [2024-02-05 10:27:50,307 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:27:50" (1/1) ... [2024-02-05 10:27:50,309 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:27:50" (1/1) ... [2024-02-05 10:27:50,310 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:27:50" (1/1) ... [2024-02-05 10:27:50,313 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-05 10:27:50,314 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-05 10:27:50,314 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-05 10:27:50,314 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-05 10:27:50,315 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:27:50" (1/1) ... [2024-02-05 10:27:50,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-05 10:27:50,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-05 10:27:50,341 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 10:27:50,376 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 10:27:50,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-05 10:27:50,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-05 10:27:50,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-05 10:27:50,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-05 10:27:50,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-05 10:27:50,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-05 10:27:50,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-05 10:27:50,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-05 10:27:50,389 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-02-05 10:27:50,389 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-02-05 10:27:50,389 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-02-05 10:27:50,389 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-02-05 10:27:50,390 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-02-05 10:27:50,390 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-02-05 10:27:50,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-05 10:27:50,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-05 10:27:50,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-05 10:27:50,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-05 10:27:50,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-05 10:27:50,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-05 10:27:50,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-05 10:27:50,393 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 10:27:50,510 INFO L244 CfgBuilder]: Building ICFG [2024-02-05 10:27:50,512 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-05 10:27:50,926 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-05 10:27:50,927 INFO L293 CfgBuilder]: Performing block encoding [2024-02-05 10:27:51,134 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-05 10:27:51,135 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-05 10:27:51,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.02 10:27:51 BoogieIcfgContainer [2024-02-05 10:27:51,136 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-05 10:27:51,138 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-05 10:27:51,139 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-05 10:27:51,141 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-05 10:27:51,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 05.02 10:27:48" (1/4) ... [2024-02-05 10:27:51,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e958867 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 05.02 10:27:51, skipping insertion in model container [2024-02-05 10:27:51,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 10:27:49" (2/4) ... [2024-02-05 10:27:51,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e958867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 10:27:51, skipping insertion in model container [2024-02-05 10:27:51,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:27:50" (3/4) ... [2024-02-05 10:27:51,144 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e958867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 10:27:51, skipping insertion in model container [2024-02-05 10:27:51,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.02 10:27:51" (4/4) ... [2024-02-05 10:27:51,145 INFO L112 eAbstractionObserver]: Analyzing ICFG safe017_tso.i [2024-02-05 10:27:51,160 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-05 10:27:51,161 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 43 error locations. [2024-02-05 10:27:51,161 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-05 10:27:51,248 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-05 10:27:51,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 93 transitions, 198 flow [2024-02-05 10:27:51,326 INFO L124 PetriNetUnfolderBase]: 1/90 cut-off events. [2024-02-05 10:27:51,326 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-05 10:27:51,331 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 12. Compared 357 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 10:27:51,331 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 93 transitions, 198 flow [2024-02-05 10:27:51,335 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 90 transitions, 189 flow [2024-02-05 10:27:51,346 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-05 10:27:51,352 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;@56a2add7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-05 10:27:51,352 INFO L358 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2024-02-05 10:27:51,354 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-05 10:27:51,354 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-05 10:27:51,354 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-05 10:27:51,354 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:27:51,355 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-05 10:27:51,355 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 10:27:51,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:27:51,360 INFO L85 PathProgramCache]: Analyzing trace with hash 12574, now seen corresponding path program 1 times [2024-02-05 10:27:51,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:27:51,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326570964] [2024-02-05 10:27:51,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:27:51,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:27:51,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:27:51,753 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 10:27:51,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:27:51,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326570964] [2024-02-05 10:27:51,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326570964] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:27:51,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:27:51,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-05 10:27:51,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621472708] [2024-02-05 10:27:51,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:27:51,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-05 10:27:51,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:27:51,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-05 10:27:51,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-05 10:27:51,797 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 93 [2024-02-05 10:27:51,800 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 10:27:51,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:27:51,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 93 [2024-02-05 10:27:51,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:27:56,127 INFO L124 PetriNetUnfolderBase]: 22659/39974 cut-off events. [2024-02-05 10:27:56,127 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2024-02-05 10:27:56,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71674 conditions, 39974 events. 22659/39974 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 2089. Compared 392054 event pairs, 15647 based on Foata normal form. 720/24551 useless extension candidates. Maximal degree in co-relation 71661. Up to 31373 conditions per place. [2024-02-05 10:27:56,402 INFO L140 encePairwiseOnDemand]: 75/93 looper letters, 52 selfloop transitions, 4 changer transitions 0/92 dead transitions. [2024-02-05 10:27:56,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 92 transitions, 311 flow [2024-02-05 10:27:56,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-05 10:27:56,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-05 10:27:56,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 192 transitions. [2024-02-05 10:27:56,412 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6881720430107527 [2024-02-05 10:27:56,414 INFO L175 Difference]: Start difference. First operand has 99 places, 90 transitions, 189 flow. Second operand 3 states and 192 transitions. [2024-02-05 10:27:56,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 92 transitions, 311 flow [2024-02-05 10:27:56,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 92 transitions, 306 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-05 10:27:56,419 INFO L231 Difference]: Finished difference. Result has 88 places, 81 transitions, 190 flow [2024-02-05 10:27:56,420 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 10:27:56,423 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -11 predicate places. [2024-02-05 10:27:56,423 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 81 transitions, 190 flow [2024-02-05 10:27:56,423 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 10:27:56,424 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:27:56,424 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-05 10:27:56,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-05 10:27:56,424 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 76 more)] === [2024-02-05 10:27:56,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:27:56,425 INFO L85 PathProgramCache]: Analyzing trace with hash 375081523, now seen corresponding path program 1 times [2024-02-05 10:27:56,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:27:56,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075784052] [2024-02-05 10:27:56,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:27:56,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:27:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:27:56,505 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 10:27:56,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:27:56,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075784052] [2024-02-05 10:27:56,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075784052] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:27:56,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:27:56,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-05 10:27:56,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340103218] [2024-02-05 10:27:56,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:27:56,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-05 10:27:56,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:27:56,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-05 10:27:56,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-05 10:27:56,522 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 93 [2024-02-05 10:27:56,522 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 10:27:56,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:27:56,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 93 [2024-02-05 10:27:56,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:28:00,443 INFO L124 PetriNetUnfolderBase]: 24861/43233 cut-off events. [2024-02-05 10:28:00,443 INFO L125 PetriNetUnfolderBase]: For 3878/3878 co-relation queries the response was YES. [2024-02-05 10:28:00,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82679 conditions, 43233 events. 24861/43233 cut-off events. For 3878/3878 co-relation queries the response was YES. Maximal size of possible extension queue 2194. Compared 419885 event pairs, 16415 based on Foata normal form. 3528/33499 useless extension candidates. Maximal degree in co-relation 82666. Up to 32344 conditions per place. [2024-02-05 10:28:00,752 INFO L140 encePairwiseOnDemand]: 86/93 looper letters, 76 selfloop transitions, 2 changer transitions 0/108 dead transitions. [2024-02-05 10:28:00,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 108 transitions, 418 flow [2024-02-05 10:28:00,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-05 10:28:00,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-05 10:28:00,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 214 transitions. [2024-02-05 10:28:00,759 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5752688172043011 [2024-02-05 10:28:00,759 INFO L175 Difference]: Start difference. First operand has 88 places, 81 transitions, 190 flow. Second operand 4 states and 214 transitions. [2024-02-05 10:28:00,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 108 transitions, 418 flow [2024-02-05 10:28:00,761 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 10:28:00,763 INFO L231 Difference]: Finished difference. Result has 85 places, 76 transitions, 180 flow [2024-02-05 10:28:00,763 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 10:28:00,764 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -14 predicate places. [2024-02-05 10:28:00,764 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 76 transitions, 180 flow [2024-02-05 10:28:00,764 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 10:28:00,764 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:28:00,764 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-05 10:28:00,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-05 10:28:00,765 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 76 more)] === [2024-02-05 10:28:00,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:28:00,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1257374240, now seen corresponding path program 1 times [2024-02-05 10:28:00,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:28:00,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582066008] [2024-02-05 10:28:00,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:28:00,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:28:00,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:28:00,936 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 10:28:00,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:28:00,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582066008] [2024-02-05 10:28:00,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582066008] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:28:00,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:28:00,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-05 10:28:00,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068476711] [2024-02-05 10:28:00,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:28:00,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-05 10:28:00,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:28:00,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-05 10:28:00,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-02-05 10:28:00,955 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 93 [2024-02-05 10:28:00,956 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 10:28:00,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:28:00,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 93 [2024-02-05 10:28:00,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:28:06,023 INFO L124 PetriNetUnfolderBase]: 34171/59147 cut-off events. [2024-02-05 10:28:06,023 INFO L125 PetriNetUnfolderBase]: For 5961/5967 co-relation queries the response was YES. [2024-02-05 10:28:06,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113568 conditions, 59147 events. 34171/59147 cut-off events. For 5961/5967 co-relation queries the response was YES. Maximal size of possible extension queue 2948. Compared 585082 event pairs, 23667 based on Foata normal form. 33/41948 useless extension candidates. Maximal degree in co-relation 113554. Up to 47133 conditions per place. [2024-02-05 10:28:06,486 INFO L140 encePairwiseOnDemand]: 87/93 looper letters, 67 selfloop transitions, 7 changer transitions 0/100 dead transitions. [2024-02-05 10:28:06,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 100 transitions, 390 flow [2024-02-05 10:28:06,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-05 10:28:06,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-05 10:28:06,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 191 transitions. [2024-02-05 10:28:06,488 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5134408602150538 [2024-02-05 10:28:06,488 INFO L175 Difference]: Start difference. First operand has 85 places, 76 transitions, 180 flow. Second operand 4 states and 191 transitions. [2024-02-05 10:28:06,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 100 transitions, 390 flow [2024-02-05 10:28:06,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 100 transitions, 386 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-05 10:28:06,492 INFO L231 Difference]: Finished difference. Result has 88 places, 79 transitions, 213 flow [2024-02-05 10:28:06,493 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=213, PETRI_PLACES=88, PETRI_TRANSITIONS=79} [2024-02-05 10:28:06,494 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -11 predicate places. [2024-02-05 10:28:06,494 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 79 transitions, 213 flow [2024-02-05 10:28:06,494 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 10:28:06,494 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:28:06,494 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-02-05 10:28:06,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-05 10:28:06,495 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 76 more)] === [2024-02-05 10:28:06,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:28:06,495 INFO L85 PathProgramCache]: Analyzing trace with hash -325888838, now seen corresponding path program 1 times [2024-02-05 10:28:06,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:28:06,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427055492] [2024-02-05 10:28:06,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:28:06,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:28:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:28:06,586 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 10:28:06,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:28:06,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427055492] [2024-02-05 10:28:06,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427055492] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:28:06,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:28:06,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-05 10:28:06,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892665882] [2024-02-05 10:28:06,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:28:06,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-05 10:28:06,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:28:06,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-05 10:28:06,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-05 10:28:06,605 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 93 [2024-02-05 10:28:06,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 79 transitions, 213 flow. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 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 10:28:06,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:28:06,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 93 [2024-02-05 10:28:06,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:28:10,886 INFO L124 PetriNetUnfolderBase]: 26852/44952 cut-off events. [2024-02-05 10:28:10,886 INFO L125 PetriNetUnfolderBase]: For 5271/5312 co-relation queries the response was YES. [2024-02-05 10:28:11,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88759 conditions, 44952 events. 26852/44952 cut-off events. For 5271/5312 co-relation queries the response was YES. Maximal size of possible extension queue 2278. Compared 421948 event pairs, 8497 based on Foata normal form. 3613/35469 useless extension candidates. Maximal degree in co-relation 88743. Up to 34628 conditions per place. [2024-02-05 10:28:11,169 INFO L140 encePairwiseOnDemand]: 87/93 looper letters, 87 selfloop transitions, 2 changer transitions 0/116 dead transitions. [2024-02-05 10:28:11,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 116 transitions, 497 flow [2024-02-05 10:28:11,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-05 10:28:11,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-05 10:28:11,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 225 transitions. [2024-02-05 10:28:11,171 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6048387096774194 [2024-02-05 10:28:11,171 INFO L175 Difference]: Start difference. First operand has 88 places, 79 transitions, 213 flow. Second operand 4 states and 225 transitions. [2024-02-05 10:28:11,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 116 transitions, 497 flow [2024-02-05 10:28:11,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 116 transitions, 477 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-05 10:28:11,175 INFO L231 Difference]: Finished difference. Result has 85 places, 75 transitions, 197 flow [2024-02-05 10:28:11,175 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=82, 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=197, PETRI_PLACES=85, PETRI_TRANSITIONS=75} [2024-02-05 10:28:11,175 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -14 predicate places. [2024-02-05 10:28:11,176 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 75 transitions, 197 flow [2024-02-05 10:28:11,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 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 10:28:11,176 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:28:11,176 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-05 10:28:11,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-05 10:28:11,176 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 76 more)] === [2024-02-05 10:28:11,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:28:11,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1512618929, now seen corresponding path program 1 times [2024-02-05 10:28:11,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:28:11,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467449963] [2024-02-05 10:28:11,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:28:11,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:28:11,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:28:11,344 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 10:28:11,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:28:11,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467449963] [2024-02-05 10:28:11,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467449963] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:28:11,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:28:11,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-05 10:28:11,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090696646] [2024-02-05 10:28:11,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:28:11,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-05 10:28:11,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:28:11,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-05 10:28:11,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-02-05 10:28:11,373 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 93 [2024-02-05 10:28:11,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 75 transitions, 197 flow. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:28:11,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:28:11,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 93 [2024-02-05 10:28:11,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:28:16,668 INFO L124 PetriNetUnfolderBase]: 36167/62773 cut-off events. [2024-02-05 10:28:16,668 INFO L125 PetriNetUnfolderBase]: For 7500/7541 co-relation queries the response was YES. [2024-02-05 10:28:16,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122085 conditions, 62773 events. 36167/62773 cut-off events. For 7500/7541 co-relation queries the response was YES. Maximal size of possible extension queue 3008. Compared 619232 event pairs, 26701 based on Foata normal form. 55/44438 useless extension candidates. Maximal degree in co-relation 122070. Up to 50349 conditions per place. [2024-02-05 10:28:17,093 INFO L140 encePairwiseOnDemand]: 87/93 looper letters, 62 selfloop transitions, 10 changer transitions 0/96 dead transitions. [2024-02-05 10:28:17,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 96 transitions, 402 flow [2024-02-05 10:28:17,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-05 10:28:17,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-05 10:28:17,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 194 transitions. [2024-02-05 10:28:17,095 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.521505376344086 [2024-02-05 10:28:17,095 INFO L175 Difference]: Start difference. First operand has 85 places, 75 transitions, 197 flow. Second operand 4 states and 194 transitions. [2024-02-05 10:28:17,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 96 transitions, 402 flow [2024-02-05 10:28:17,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 96 transitions, 396 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-05 10:28:17,099 INFO L231 Difference]: Finished difference. Result has 88 places, 79 transitions, 246 flow [2024-02-05 10:28:17,099 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=246, PETRI_PLACES=88, PETRI_TRANSITIONS=79} [2024-02-05 10:28:17,100 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -11 predicate places. [2024-02-05 10:28:17,100 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 79 transitions, 246 flow [2024-02-05 10:28:17,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:28:17,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:28:17,100 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-05 10:28:17,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-05 10:28:17,101 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting P0Err4ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 76 more)] === [2024-02-05 10:28:17,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:28:17,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1450819485, now seen corresponding path program 1 times [2024-02-05 10:28:17,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:28:17,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401282639] [2024-02-05 10:28:17,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:28:17,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:28:17,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:28:17,268 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 10:28:17,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:28:17,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401282639] [2024-02-05 10:28:17,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401282639] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:28:17,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:28:17,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-05 10:28:17,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483762101] [2024-02-05 10:28:17,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:28:17,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-02-05 10:28:17,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:28:17,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-02-05 10:28:17,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-02-05 10:28:17,294 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 93 [2024-02-05 10:28:17,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 79 transitions, 246 flow. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 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 10:28:17,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:28:17,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 93 [2024-02-05 10:28:17,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand