./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe031_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/safe031_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/safe031_tso.i ./goblint.2024-01-24_13-31-21.files/SV-COMP24_unreach-call/safe031_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 10:28:38,358 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-05 10:28:38,426 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-05 10:28:38,431 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-05 10:28:38,432 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-05 10:28:38,457 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-05 10:28:38,457 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-05 10:28:38,458 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-05 10:28:38,458 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-05 10:28:38,461 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-05 10:28:38,462 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-05 10:28:38,462 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-05 10:28:38,463 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-05 10:28:38,464 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-05 10:28:38,464 INFO L153 SettingsManager]: * Use SBE=true [2024-02-05 10:28:38,465 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-05 10:28:38,465 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-05 10:28:38,465 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-05 10:28:38,465 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-05 10:28:38,465 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-05 10:28:38,466 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-05 10:28:38,466 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-05 10:28:38,466 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-05 10:28:38,467 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-05 10:28:38,467 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-05 10:28:38,467 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-05 10:28:38,467 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-05 10:28:38,467 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-05 10:28:38,468 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-05 10:28:38,468 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-05 10:28:38,469 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-05 10:28:38,469 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-05 10:28:38,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-05 10:28:38,470 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-05 10:28:38,470 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-05 10:28:38,470 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-05 10:28:38,470 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-05 10:28:38,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-05 10:28:38,471 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-05 10:28:38,471 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-05 10:28:38,471 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-05 10:28:38,471 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-05 10:28:38,472 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-05 10:28:38,472 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-05 10:28:38,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-05 10:28:38,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-05 10:28:38,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-05 10:28:38,711 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-05 10:28:38,711 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-05 10:28:38,712 INFO L431 ainManager$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/safe031_tso.yml/witness.yml [2024-02-05 10:28:38,925 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-05 10:28:38,926 INFO L274 PluginConnector]: CDTParser initialized [2024-02-05 10:28:38,926 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.i [2024-02-05 10:28:39,885 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-05 10:28:40,160 INFO L384 CDTParser]: Found 1 translation units. [2024-02-05 10:28:40,161 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.i [2024-02-05 10:28:40,175 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9242d5791/e506c5d51fea4b3c881038470e954a73/FLAGcfcbf6f72 [2024-02-05 10:28:40,191 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9242d5791/e506c5d51fea4b3c881038470e954a73 [2024-02-05 10:28:40,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-05 10:28:40,192 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-05 10:28:40,195 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-05 10:28:40,195 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-05 10:28:40,199 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-05 10:28:40,199 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 05.02 10:28:38" (1/2) ... [2024-02-05 10:28:40,200 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73999c6e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:28:40, skipping insertion in model container [2024-02-05 10:28:40,200 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 05.02 10:28:38" (1/2) ... [2024-02-05 10:28:40,202 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@188d3b5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:28:40, skipping insertion in model container [2024-02-05 10:28:40,202 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 10:28:40" (2/2) ... [2024-02-05 10:28:40,203 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73999c6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:28:40, skipping insertion in model container [2024-02-05 10:28:40,203 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 10:28:40" (2/2) ... [2024-02-05 10:28:40,204 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-05 10:28:40,522 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-05 10:28:40,523 INFO L101 nessWitnessExtractor]: Location invariant before [L755-L755] (((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-05 10:28:40,523 INFO L101 nessWitnessExtractor]: Location invariant before [L729-L729] (((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-05 10:28:40,523 INFO L101 nessWitnessExtractor]: Location invariant before [L727-L727] (unsigned long )arg == 0UL [2024-02-05 10:28:40,523 INFO L101 nessWitnessExtractor]: Location invariant before [L734-L734] (((((((((((((((((0 <= __unbuffered_p0_EAX) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (1 <= __unbuffered_cnt)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-05 10:28:40,524 INFO L101 nessWitnessExtractor]: Location invariant before [L739-L739] (unsigned long )arg == 0UL [2024-02-05 10:28:40,524 INFO L101 nessWitnessExtractor]: Location invariant before [L747-L747] (unsigned long )arg == 0UL [2024-02-05 10:28:40,524 INFO L101 nessWitnessExtractor]: Location invariant before [L730-L730] (unsigned long )arg == 0UL [2024-02-05 10:28:40,524 INFO L101 nessWitnessExtractor]: Location invariant before [L760-L760] (unsigned long )arg == 0UL [2024-02-05 10:28:40,524 INFO L101 nessWitnessExtractor]: Location invariant before [L779-L779] ((((((__unbuffered_cnt == 0) && (__unbuffered_p0_EAX == 0)) && (main$tmp_guard0 == (_Bool)0)) && (main$tmp_guard1 == (_Bool)0)) && (x == 0)) && (y == 0)) && (z == 0) [2024-02-05 10:28:40,524 INFO L101 nessWitnessExtractor]: Location invariant before [L749-L749] (((((((((((((((((0 <= __unbuffered_p0_EAX) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (1 <= __unbuffered_cnt)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-05 10:28:40,524 INFO L101 nessWitnessExtractor]: Location invariant before [L786-L786] ((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-05 10:28:40,525 INFO L101 nessWitnessExtractor]: Location invariant before [L789-L789] ((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-05 10:28:40,525 INFO L101 nessWitnessExtractor]: Location invariant before [L758-L758] (((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-05 10:28:40,525 INFO L101 nessWitnessExtractor]: Location invariant after [L18-L18] expression == 1 [2024-02-05 10:28:40,525 INFO L101 nessWitnessExtractor]: Location invariant before [L746-L746] (((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-05 10:28:40,525 INFO L101 nessWitnessExtractor]: Location invariant before [L765-L765] (unsigned long )arg == 0UL [2024-02-05 10:28:40,525 INFO L101 nessWitnessExtractor]: Location invariant before [L728-L728] (((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-05 10:28:40,525 INFO L101 nessWitnessExtractor]: Location invariant before [L732-L732] (unsigned long )arg == 0UL [2024-02-05 10:28:40,526 INFO L101 nessWitnessExtractor]: Location invariant before [L764-L764] (((((((((((((((((0 <= __unbuffered_p0_EAX) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (1 <= __unbuffered_cnt)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-05 10:28:40,526 INFO L101 nessWitnessExtractor]: Location invariant before [L744-L744] ((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= x)) && (0 <= z)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (z <= 2)) && (z <= 127)) && (y == 1)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((z == 0 || z == 1) || z == 2) [2024-02-05 10:28:40,526 INFO L101 nessWitnessExtractor]: Location invariant before [L735-L735] (unsigned long )arg == 0UL [2024-02-05 10:28:40,527 INFO L101 nessWitnessExtractor]: Location invariant before [L748-L748] (((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-05 10:28:40,527 INFO L101 nessWitnessExtractor]: Location invariant after [L18-L18] expression == 0 [2024-02-05 10:28:40,527 INFO L101 nessWitnessExtractor]: Location invariant before [L733-L733] (((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-05 10:28:40,527 INFO L101 nessWitnessExtractor]: Location invariant before [L761-L761] (((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-05 10:28:40,527 INFO L101 nessWitnessExtractor]: Location invariant before [L18-L18] ((0 <= expression) && (expression <= 1)) && (expression == 0 || expression == 1) [2024-02-05 10:28:40,527 INFO L101 nessWitnessExtractor]: Location invariant before [L18-L18] expression == 0 [2024-02-05 10:28:40,528 INFO L101 nessWitnessExtractor]: Location invariant before [L754-L754] (unsigned long )arg == 0UL [2024-02-05 10:28:40,528 INFO L101 nessWitnessExtractor]: Location invariant before [L785-L785] ((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-05 10:28:40,528 INFO L101 nessWitnessExtractor]: Location invariant before [L750-L750] (unsigned long )arg == 0UL [2024-02-05 10:28:40,528 INFO L101 nessWitnessExtractor]: Location invariant before [L756-L756] ((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= x)) && (0 <= z)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (z <= 2)) && (z <= 127)) && (y == 2)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((z == 0 || z == 1) || z == 2) [2024-02-05 10:28:40,528 INFO L101 nessWitnessExtractor]: Location invariant before [L723-L723] (((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-05 10:28:40,528 INFO L101 nessWitnessExtractor]: Location invariant before [L724-L724] ((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (z == 2)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:28:40,528 INFO L101 nessWitnessExtractor]: Location invariant before [L792-L792] ((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-05 10:28:40,529 INFO L101 nessWitnessExtractor]: Location invariant before [L763-L763] (((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-05 10:28:40,529 INFO L101 nessWitnessExtractor]: Location invariant before [L741-L741] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= y)) && (0 <= z)) && (__unbuffered_p0_EAX <= 1)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && (x == 1)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (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) [2024-02-05 10:28:40,529 INFO L101 nessWitnessExtractor]: Location invariant before [L731-L731] (((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-05 10:28:40,530 INFO L101 nessWitnessExtractor]: Location invariant before [L726-L726] (((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-05 10:28:40,531 INFO L101 nessWitnessExtractor]: Location invariant before [L740-L740] (((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-05 10:28:40,531 INFO L101 nessWitnessExtractor]: Location invariant before [L722-L722] (unsigned long )arg == 0UL [2024-02-05 10:28:40,531 INFO L101 nessWitnessExtractor]: Location invariant before [L757-L757] (unsigned long )arg == 0UL [2024-02-05 10:28:40,531 INFO L101 nessWitnessExtractor]: Location invariant before [L745-L745] (unsigned long )arg == 0UL [2024-02-05 10:28:40,531 INFO L101 nessWitnessExtractor]: Location invariant before [L725-L725] (unsigned long )arg == 0UL [2024-02-05 10:28:40,531 INFO L101 nessWitnessExtractor]: Location invariant before [L18-L18] expression == 1 [2024-02-05 10:28:40,531 INFO L101 nessWitnessExtractor]: Location invariant before [L743-L743] (((((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-02-05 10:28:40,532 INFO L101 nessWitnessExtractor]: Location invariant before [L762-L762] (unsigned long )arg == 0UL [2024-02-05 10:28:40,532 INFO L101 nessWitnessExtractor]: Location invariant after [L18-L18] expression == 1 [2024-02-05 10:28:40,532 INFO L101 nessWitnessExtractor]: Location invariant before [L759-L759] ((((((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= x)) && (0 <= y)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (y <= 2)) && (y <= 127)) && (z == 1)) && ((unsigned long )arg == 0UL)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && ((y == 0 || y == 1) || y == 2) [2024-02-05 10:28:40,532 INFO L101 nessWitnessExtractor]: Location invariant before [L742-L742] (unsigned long )arg == 0UL [2024-02-05 10:28:40,532 INFO L101 nessWitnessExtractor]: Location invariant before [L791-L791] ((((((((((0 <= __unbuffered_cnt) && (0 <= __unbuffered_p0_EAX)) && (0 <= x)) && (__unbuffered_p0_EAX <= 1)) && (x <= 1)) && (y == 2)) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (x == 0 || x == 1)) && (z == 2 || (((0 <= z && z <= 2) && z <= 127) && ((z == 0 || z == 1) || z == 2))) [2024-02-05 10:28:40,585 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-02-05 10:28:40,743 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/safe031_tso.i[945,958] [2024-02-05 10:28:40,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-05 10:28:40,933 INFO L204 MainTranslator]: Completed pre-run Start Parsing Local [2024-02-05 10:28:40,965 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/safe031_tso.i[945,958] Start Parsing Local Start Parsing Local [2024-02-05 10:28:40,967 WARN L424 MainDispatcher]: Unable to annotate ; with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-05 10:28:41,091 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-05 10:28:41,114 INFO L208 MainTranslator]: Completed translation [2024-02-05 10:28:41,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:28:41 WrapperNode [2024-02-05 10:28:41,115 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-05 10:28:41,115 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-05 10:28:41,115 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-05 10:28:41,116 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-05 10:28:41,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:28:41" (1/1) ... [2024-02-05 10:28:41,155 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:28:41" (1/1) ... [2024-02-05 10:28:41,181 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 78 [2024-02-05 10:28:41,186 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-05 10:28:41,186 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-05 10:28:41,187 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-05 10:28:41,187 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-05 10:28:41,195 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:28:41" (1/1) ... [2024-02-05 10:28:41,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:28:41" (1/1) ... [2024-02-05 10:28:41,212 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:28:41" (1/1) ... [2024-02-05 10:28:41,228 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 10:28:41,229 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:28:41" (1/1) ... [2024-02-05 10:28:41,229 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:28:41" (1/1) ... [2024-02-05 10:28:41,237 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:28:41" (1/1) ... [2024-02-05 10:28:41,239 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:28:41" (1/1) ... [2024-02-05 10:28:41,241 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:28:41" (1/1) ... [2024-02-05 10:28:41,242 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:28:41" (1/1) ... [2024-02-05 10:28:41,245 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-05 10:28:41,246 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-05 10:28:41,246 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-05 10:28:41,246 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-05 10:28:41,247 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:28:41" (1/1) ... [2024-02-05 10:28:41,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-05 10:28:41,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-05 10:28:41,295 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 10:28:41,312 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 10:28:41,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-05 10:28:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-05 10:28:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-05 10:28:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-05 10:28:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-05 10:28:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-05 10:28:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-05 10:28:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-05 10:28:41,340 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-02-05 10:28:41,340 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-02-05 10:28:41,340 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-02-05 10:28:41,341 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-02-05 10:28:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-02-05 10:28:41,341 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-02-05 10:28:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-05 10:28:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-05 10:28:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-05 10:28:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-05 10:28:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-05 10:28:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-05 10:28:41,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-05 10:28:41,344 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 10:28:41,448 INFO L244 CfgBuilder]: Building ICFG [2024-02-05 10:28:41,449 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-05 10:28:41,946 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-05 10:28:41,946 INFO L293 CfgBuilder]: Performing block encoding [2024-02-05 10:28:42,107 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-05 10:28:42,107 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-05 10:28:42,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.02 10:28:42 BoogieIcfgContainer [2024-02-05 10:28:42,109 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-05 10:28:42,111 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-05 10:28:42,111 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-05 10:28:42,114 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-05 10:28:42,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 05.02 10:28:38" (1/4) ... [2024-02-05 10:28:42,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b712f4 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 05.02 10:28:42, skipping insertion in model container [2024-02-05 10:28:42,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 10:28:40" (2/4) ... [2024-02-05 10:28:42,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b712f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 10:28:42, skipping insertion in model container [2024-02-05 10:28:42,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:28:41" (3/4) ... [2024-02-05 10:28:42,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b712f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 10:28:42, skipping insertion in model container [2024-02-05 10:28:42,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.02 10:28:42" (4/4) ... [2024-02-05 10:28:42,117 INFO L112 eAbstractionObserver]: Analyzing ICFG safe031_tso.i [2024-02-05 10:28:42,130 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-05 10:28:42,131 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2024-02-05 10:28:42,131 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-05 10:28:42,229 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-05 10:28:42,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 102 transitions, 216 flow [2024-02-05 10:28:42,312 INFO L124 PetriNetUnfolderBase]: 1/99 cut-off events. [2024-02-05 10:28:42,312 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-05 10:28:42,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 99 events. 1/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 409 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2024-02-05 10:28:42,318 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 102 transitions, 216 flow [2024-02-05 10:28:42,322 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 99 transitions, 207 flow [2024-02-05 10:28:42,329 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-05 10:28:42,333 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;@56f66ab9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-05 10:28:42,333 INFO L358 AbstractCegarLoop]: Starting to check reachability of 89 error locations. [2024-02-05 10:28:42,335 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-05 10:28:42,335 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-05 10:28:42,335 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-05 10:28:42,335 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:28:42,336 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-05 10:28:42,337 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 86 more)] === [2024-02-05 10:28:42,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:28:42,341 INFO L85 PathProgramCache]: Analyzing trace with hash 12704, now seen corresponding path program 1 times [2024-02-05 10:28:42,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:28:42,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971110661] [2024-02-05 10:28:42,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:28:42,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:28:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:28:42,696 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 10:28:42,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:28:42,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971110661] [2024-02-05 10:28:42,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971110661] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:28:42,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:28:42,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-05 10:28:42,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311899087] [2024-02-05 10:28:42,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:28:42,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-05 10:28:42,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:28:42,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-05 10:28:42,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-05 10:28:42,738 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 102 [2024-02-05 10:28:42,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 99 transitions, 207 flow. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 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) [2024-02-05 10:28:42,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:28:42,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 102 [2024-02-05 10:28:42,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:28:48,900 INFO L124 PetriNetUnfolderBase]: 34927/59783 cut-off events. [2024-02-05 10:28:48,901 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2024-02-05 10:28:49,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108383 conditions, 59783 events. 34927/59783 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 2727. Compared 586462 event pairs, 27399 based on Foata normal form. 1080/36059 useless extension candidates. Maximal degree in co-relation 108370. Up to 48253 conditions per place. [2024-02-05 10:28:49,576 INFO L140 encePairwiseOnDemand]: 83/102 looper letters, 54 selfloop transitions, 4 changer transitions 0/98 dead transitions. [2024-02-05 10:28:49,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 98 transitions, 327 flow [2024-02-05 10:28:49,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-05 10:28:49,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-05 10:28:49,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 206 transitions. [2024-02-05 10:28:49,590 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.673202614379085 [2024-02-05 10:28:49,592 INFO L175 Difference]: Start difference. First operand has 108 places, 99 transitions, 207 flow. Second operand 3 states and 206 transitions. [2024-02-05 10:28:49,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 98 transitions, 327 flow [2024-02-05 10:28:49,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 98 transitions, 322 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-05 10:28:49,615 INFO L231 Difference]: Finished difference. Result has 96 places, 89 transitions, 206 flow [2024-02-05 10:28:49,618 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=96, PETRI_TRANSITIONS=89} [2024-02-05 10:28:49,620 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -12 predicate places. [2024-02-05 10:28:49,621 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 89 transitions, 206 flow [2024-02-05 10:28:49,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 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) [2024-02-05 10:28:49,621 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:28:49,621 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-05 10:28:49,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-05 10:28:49,622 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 86 more)] === [2024-02-05 10:28:49,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:28:49,624 INFO L85 PathProgramCache]: Analyzing trace with hash 378993849, now seen corresponding path program 1 times [2024-02-05 10:28:49,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:28:49,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536262013] [2024-02-05 10:28:49,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:28:49,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:28:49,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:28:49,736 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 10:28:49,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:28:49,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536262013] [2024-02-05 10:28:49,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536262013] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:28:49,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:28:49,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-05 10:28:49,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178668084] [2024-02-05 10:28:49,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:28:49,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-05 10:28:49,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:28:49,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-05 10:28:49,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-05 10:28:49,756 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 102 [2024-02-05 10:28:49,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 89 transitions, 206 flow. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:28:49,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:28:49,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 102 [2024-02-05 10:28:49,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:28:56,782 INFO L124 PetriNetUnfolderBase]: 37851/63762 cut-off events. [2024-02-05 10:28:56,782 INFO L125 PetriNetUnfolderBase]: For 5379/5379 co-relation queries the response was YES. [2024-02-05 10:28:56,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122914 conditions, 63762 events. 37851/63762 cut-off events. For 5379/5379 co-relation queries the response was YES. Maximal size of possible extension queue 2849. Compared 618608 event pairs, 28387 based on Foata normal form. 5578/48550 useless extension candidates. Maximal degree in co-relation 122901. Up to 49416 conditions per place. [2024-02-05 10:28:57,155 INFO L140 encePairwiseOnDemand]: 94/102 looper letters, 82 selfloop transitions, 2 changer transitions 0/117 dead transitions. [2024-02-05 10:28:57,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 117 transitions, 448 flow [2024-02-05 10:28:57,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-05 10:28:57,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-05 10:28:57,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 233 transitions. [2024-02-05 10:28:57,162 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.571078431372549 [2024-02-05 10:28:57,162 INFO L175 Difference]: Start difference. First operand has 96 places, 89 transitions, 206 flow. Second operand 4 states and 233 transitions. [2024-02-05 10:28:57,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 117 transitions, 448 flow [2024-02-05 10:28:57,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 117 transitions, 442 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-05 10:28:57,166 INFO L231 Difference]: Finished difference. Result has 92 places, 83 transitions, 194 flow [2024-02-05 10:28:57,166 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=194, PETRI_PLACES=92, PETRI_TRANSITIONS=83} [2024-02-05 10:28:57,167 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -16 predicate places. [2024-02-05 10:28:57,167 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 83 transitions, 194 flow [2024-02-05 10:28:57,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:28:57,167 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:28:57,168 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-05 10:28:57,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-05 10:28:57,168 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 86 more)] === [2024-02-05 10:28:57,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:28:57,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1136092101, now seen corresponding path program 1 times [2024-02-05 10:28:57,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:28:57,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035729599] [2024-02-05 10:28:57,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:28:57,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:28:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:28:57,406 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 10:28:57,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:28:57,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035729599] [2024-02-05 10:28:57,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035729599] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:28:57,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:28:57,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-05 10:28:57,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359674907] [2024-02-05 10:28:57,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:28:57,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-05 10:28:57,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:28:57,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-05 10:28:57,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-02-05 10:28:57,436 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 102 [2024-02-05 10:28:57,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 83 transitions, 194 flow. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:28:57,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:28:57,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 102 [2024-02-05 10:28:57,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:29:05,488 INFO L124 PetriNetUnfolderBase]: 52813/88144 cut-off events. [2024-02-05 10:29:05,488 INFO L125 PetriNetUnfolderBase]: For 8666/8681 co-relation queries the response was YES. [2024-02-05 10:29:05,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171009 conditions, 88144 events. 52813/88144 cut-off events. For 8666/8681 co-relation queries the response was YES. Maximal size of possible extension queue 3782. Compared 865419 event pairs, 41465 based on Foata normal form. 27/61482 useless extension candidates. Maximal degree in co-relation 170995. Up to 72743 conditions per place. [2024-02-05 10:29:06,303 INFO L140 encePairwiseOnDemand]: 96/102 looper letters, 68 selfloop transitions, 7 changer transitions 0/103 dead transitions. [2024-02-05 10:29:06,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 103 transitions, 398 flow [2024-02-05 10:29:06,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-05 10:29:06,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-05 10:29:06,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 200 transitions. [2024-02-05 10:29:06,306 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49019607843137253 [2024-02-05 10:29:06,306 INFO L175 Difference]: Start difference. First operand has 92 places, 83 transitions, 194 flow. Second operand 4 states and 200 transitions. [2024-02-05 10:29:06,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 103 transitions, 398 flow [2024-02-05 10:29:06,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 103 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-05 10:29:06,311 INFO L231 Difference]: Finished difference. Result has 95 places, 86 transitions, 227 flow [2024-02-05 10:29:06,311 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=227, PETRI_PLACES=95, PETRI_TRANSITIONS=86} [2024-02-05 10:29:06,313 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -13 predicate places. [2024-02-05 10:29:06,313 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 86 transitions, 227 flow [2024-02-05 10:29:06,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:29:06,313 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:29:06,314 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-02-05 10:29:06,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-05 10:29:06,314 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 86 more)] === [2024-02-05 10:29:06,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:29:06,315 INFO L85 PathProgramCache]: Analyzing trace with hash -859166522, now seen corresponding path program 1 times [2024-02-05 10:29:06,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:29:06,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561206142] [2024-02-05 10:29:06,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:29:06,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:29:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:29:06,394 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 10:29:06,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:29:06,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561206142] [2024-02-05 10:29:06,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561206142] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:29:06,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:29:06,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-05 10:29:06,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467019670] [2024-02-05 10:29:06,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:29:06,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-05 10:29:06,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:29:06,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-05 10:29:06,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-05 10:29:06,423 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 102 [2024-02-05 10:29:06,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 86 transitions, 227 flow. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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 10:29:06,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:29:06,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 102 [2024-02-05 10:29:06,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand