./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/safe030_tso.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fced0e87 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/safe030_tso.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.extract-columns-fced0e8-m [2024-01-31 16:04:11,161 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-31 16:04:11,210 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-31 16:04:11,215 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-31 16:04:11,216 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-31 16:04:11,233 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-31 16:04:11,234 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-31 16:04:11,234 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-31 16:04:11,235 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-31 16:04:11,238 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-31 16:04:11,238 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-31 16:04:11,239 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-31 16:04:11,240 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-31 16:04:11,241 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-31 16:04:11,241 INFO L153 SettingsManager]: * Use SBE=true [2024-01-31 16:04:11,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-31 16:04:11,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-31 16:04:11,242 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-31 16:04:11,242 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-31 16:04:11,242 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-31 16:04:11,242 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-31 16:04:11,243 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-31 16:04:11,243 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-31 16:04:11,243 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-31 16:04:11,243 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-31 16:04:11,244 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-31 16:04:11,244 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-31 16:04:11,244 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-31 16:04:11,245 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-31 16:04:11,245 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-31 16:04:11,246 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-31 16:04:11,246 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-31 16:04:11,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:04:11,246 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-31 16:04:11,247 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-31 16:04:11,247 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-31 16:04:11,247 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-31 16:04:11,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-31 16:04:11,247 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-31 16:04:11,248 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-31 16:04:11,248 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-31 16:04:11,248 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-31 16:04:11,248 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-31 16:04:11,248 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-31 16:04:11,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-31 16:04:11,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-31 16:04:11,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-31 16:04:11,812 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-31 16:04:11,812 INFO L274 PluginConnector]: CDTParser initialized [2024-01-31 16:04:11,814 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.i [2024-01-31 16:04:13,175 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-31 16:04:13,469 INFO L384 CDTParser]: Found 1 translation units. [2024-01-31 16:04:13,469 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.i [2024-01-31 16:04:13,518 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a33013f9/1028a68e80ff48cfbd372ab98b628e76/FLAGe3cfbc732 [2024-01-31 16:04:13,537 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a33013f9/1028a68e80ff48cfbd372ab98b628e76 [2024-01-31 16:04:13,540 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-31 16:04:13,541 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-31 16:04:13,544 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/safe030_tso.yml/witness.yml [2024-01-31 16:04:13,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-31 16:04:13,800 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-31 16:04:13,803 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-31 16:04:13,803 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-31 16:04:13,807 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-31 16:04:13,808 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:04:13" (1/2) ... [2024-01-31 16:04:13,809 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eaad82a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:04:13, skipping insertion in model container [2024-01-31 16:04:13,809 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:04:13" (1/2) ... [2024-01-31 16:04:13,810 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@52774136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:04:13, skipping insertion in model container [2024-01-31 16:04:13,811 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:04:13" (2/2) ... [2024-01-31 16:04:13,811 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eaad82a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:04:13, skipping insertion in model container [2024-01-31 16:04:13,811 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:04:13" (2/2) ... [2024-01-31 16:04:13,811 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-31 16:04:14,056 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-31 16:04:14,058 INFO L98 nessWitnessExtractor]: Location invariant before [L735-L735] (unsigned long )arg == 0UL [2024-01-31 16:04:14,058 INFO L98 nessWitnessExtractor]: Location invariant before [L756-L756] (unsigned long )arg == 0UL [2024-01-31 16:04:14,058 INFO L98 nessWitnessExtractor]: Location invariant before [L721-L721] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-31 16:04:14,058 INFO L98 nessWitnessExtractor]: Location invariant before [L752-L752] ((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (z <= 2)) && (z <= 127)) && (y == 2)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-31 16:04:14,059 INFO L98 nessWitnessExtractor]: Location invariant before [L720-L720] (unsigned long )arg == 0UL [2024-01-31 16:04:14,059 INFO L98 nessWitnessExtractor]: Location invariant before [L760-L760] (((((((((((((((0 <= x) && (0 <= y)) && (0 <= z)) && (1 <= __unbuffered_cnt)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-31 16:04:14,059 INFO L98 nessWitnessExtractor]: Location invariant before [L787-L787] ((((((((0 <= __unbuffered_cnt) && (0 <= z)) && (z <= 2)) && (z <= 127)) && (x == 2)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && (y == 2 || (((0 <= y && y <= 2) && y <= 127) && ((y == 0 || y == 1) || y == 2)))) && ((z == 0 || z == 1) || z == 2) [2024-01-31 16:04:14,059 INFO L98 nessWitnessExtractor]: Location invariant before [L18-L18] expression == 1 [2024-01-31 16:04:14,059 INFO L98 nessWitnessExtractor]: Location invariant before [L782-L782] ((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-31 16:04:14,059 INFO L98 nessWitnessExtractor]: Location invariant before [L781-L781] ((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-31 16:04:14,060 INFO L98 nessWitnessExtractor]: Location invariant before [L758-L758] (unsigned long )arg == 0UL [2024-01-31 16:04:14,060 INFO L98 nessWitnessExtractor]: Location invariant before [L759-L759] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-31 16:04:14,060 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L18] expression == 1 [2024-01-31 16:04:14,060 INFO L98 nessWitnessExtractor]: Location invariant before [L751-L751] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-31 16:04:14,060 INFO L98 nessWitnessExtractor]: Location invariant before [L724-L724] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-31 16:04:14,060 INFO L98 nessWitnessExtractor]: Location invariant before [L757-L757] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-31 16:04:14,061 INFO L98 nessWitnessExtractor]: Location invariant before [L745-L745] (((((((((((((((0 <= x) && (0 <= y)) && (0 <= z)) && (1 <= __unbuffered_cnt)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-31 16:04:14,061 INFO L98 nessWitnessExtractor]: Location invariant before [L761-L761] (unsigned long )arg == 0UL [2024-01-31 16:04:14,061 INFO L98 nessWitnessExtractor]: Location invariant before [L740-L740] ((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (z <= 2)) && (z <= 127)) && (y == 1)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-31 16:04:14,061 INFO L98 nessWitnessExtractor]: Location invariant before [L736-L736] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-31 16:04:14,061 INFO L98 nessWitnessExtractor]: Location invariant before [L739-L739] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-31 16:04:14,061 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L18] expression == 0 [2024-01-31 16:04:14,061 INFO L98 nessWitnessExtractor]: Location invariant before [L744-L744] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-31 16:04:14,062 INFO L98 nessWitnessExtractor]: Location invariant before [L743-L743] (unsigned long )arg == 0UL [2024-01-31 16:04:14,062 INFO L98 nessWitnessExtractor]: Location invariant before [L722-L722] ((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z == 2)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-31 16:04:14,062 INFO L98 nessWitnessExtractor]: Location invariant before [L728-L728] (unsigned long )arg == 0UL [2024-01-31 16:04:14,062 INFO L98 nessWitnessExtractor]: Location invariant before [L754-L754] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-31 16:04:14,062 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L18] expression == 1 [2024-01-31 16:04:14,062 INFO L98 nessWitnessExtractor]: Location invariant before [L738-L738] (unsigned long )arg == 0UL [2024-01-31 16:04:14,062 INFO L98 nessWitnessExtractor]: Location invariant before [L788-L788] ((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-31 16:04:14,063 INFO L98 nessWitnessExtractor]: Location invariant before [L741-L741] (unsigned long )arg == 0UL [2024-01-31 16:04:14,063 INFO L98 nessWitnessExtractor]: Location invariant before [L731-L731] (unsigned long )arg == 0UL [2024-01-31 16:04:14,063 INFO L98 nessWitnessExtractor]: Location invariant before [L725-L725] ((((((((((((0 <= __unbuffered_cnt) && (0 <= y)) && (0 <= z)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && (x == 1)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-31 16:04:14,063 INFO L98 nessWitnessExtractor]: Location invariant before [L746-L746] (unsigned long )arg == 0UL [2024-01-31 16:04:14,063 INFO L98 nessWitnessExtractor]: Location invariant before [L755-L755] ((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z == 1)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2) [2024-01-31 16:04:14,063 INFO L98 nessWitnessExtractor]: Location invariant before [L742-L742] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-31 16:04:14,063 INFO L98 nessWitnessExtractor]: Location invariant before [L750-L750] (unsigned long )arg == 0UL [2024-01-31 16:04:14,064 INFO L98 nessWitnessExtractor]: Location invariant before [L729-L729] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-31 16:04:14,065 INFO L98 nessWitnessExtractor]: Location invariant before [L753-L753] (unsigned long )arg == 0UL [2024-01-31 16:04:14,065 INFO L98 nessWitnessExtractor]: Location invariant before [L737-L737] ((((((((((((0 <= __unbuffered_cnt) && (0 <= y)) && (0 <= z)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && (x == 2)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-31 16:04:14,066 INFO L98 nessWitnessExtractor]: Location invariant before [L723-L723] (unsigned long )arg == 0UL [2024-01-31 16:04:14,066 INFO L98 nessWitnessExtractor]: Location invariant before [L730-L730] (((((((((((((((0 <= x) && (0 <= y)) && (0 <= z)) && (1 <= __unbuffered_cnt)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-31 16:04:14,066 INFO L98 nessWitnessExtractor]: Location invariant before [L727-L727] (((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && ((unsigned long )arg == 0UL)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-31 16:04:14,066 INFO L98 nessWitnessExtractor]: Location invariant before [L18-L18] expression == 0 [2024-01-31 16:04:14,066 INFO L98 nessWitnessExtractor]: Location invariant before [L726-L726] (unsigned long )arg == 0UL [2024-01-31 16:04:14,067 INFO L98 nessWitnessExtractor]: Location invariant before [L18-L18] ((0 <= expression) && (expression <= 1)) && (expression == 0 || expression == 1) [2024-01-31 16:04:14,067 INFO L98 nessWitnessExtractor]: Location invariant before [L785-L785] ((((((((((((((0 <= __unbuffered_cnt) && (0 <= x)) && (0 <= y)) && (0 <= z)) && (x <= 2)) && (x <= 127)) && (y <= 2)) && (y <= 127)) && (z <= 2)) && (z <= 127)) && (main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1)) && (main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)) && ((z == 0 || z == 1) || z == 2) [2024-01-31 16:04:14,067 INFO L98 nessWitnessExtractor]: Location invariant before [L775-L775] (((((__unbuffered_cnt == 0) && (main$tmp_guard0 == (_Bool)0)) && (main$tmp_guard1 == (_Bool)0)) && (x == 0)) && (y == 0)) && (z == 0) [2024-01-31 16:04:14,116 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-01-31 16:04:14,290 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.i[945,958] [2024-01-31 16:04:14,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:04:14,440 INFO L204 MainTranslator]: Completed pre-run Start Parsing Local [2024-01-31 16:04:14,491 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.i[945,958] Start Parsing Local Start Parsing Local [2024-01-31 16:04:14,492 WARN L424 MainDispatcher]: Unable to annotate ; with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-31 16:04:14,645 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:04:14,691 INFO L208 MainTranslator]: Completed translation [2024-01-31 16:04:14,693 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:04:14 WrapperNode [2024-01-31 16:04:14,694 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-31 16:04:14,695 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-31 16:04:14,695 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-31 16:04:14,696 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-31 16:04:14,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:04:14" (1/1) ... [2024-01-31 16:04:14,739 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:04:14" (1/1) ... [2024-01-31 16:04:14,762 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2024-01-31 16:04:14,766 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-31 16:04:14,767 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-31 16:04:14,767 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-31 16:04:14,767 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-31 16:04:14,776 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:04:14" (1/1) ... [2024-01-31 16:04:14,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:04:14" (1/1) ... [2024-01-31 16:04:14,804 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:04:14" (1/1) ... [2024-01-31 16:04:14,821 INFO L175 MemorySlicer]: Split 5 memory accesses to 4 slices as follows [2, 1, 1, 1]. 40 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-01-31 16:04:14,826 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:04:14" (1/1) ... [2024-01-31 16:04:14,826 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:04:14" (1/1) ... [2024-01-31 16:04:14,837 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:04:14" (1/1) ... [2024-01-31 16:04:14,851 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:04:14" (1/1) ... [2024-01-31 16:04:14,853 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:04:14" (1/1) ... [2024-01-31 16:04:14,860 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:04:14" (1/1) ... [2024-01-31 16:04:14,869 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-31 16:04:14,870 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-31 16:04:14,870 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-31 16:04:14,870 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-31 16:04:14,871 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:04:14" (1/1) ... [2024-01-31 16:04:14,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:04:14,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 16:04:14,951 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-31 16:04:14,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-31 16:04:14,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-31 16:04:14,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-31 16:04:14,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-31 16:04:14,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-31 16:04:14,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-31 16:04:14,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-31 16:04:14,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-31 16:04:14,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-31 16:04:14,987 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-01-31 16:04:14,988 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-01-31 16:04:14,988 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-01-31 16:04:14,988 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-01-31 16:04:14,988 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-01-31 16:04:14,989 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-01-31 16:04:14,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-31 16:04:14,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-31 16:04:14,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-31 16:04:14,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-31 16:04:14,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-31 16:04:14,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-31 16:04:14,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-31 16:04:14,991 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-31 16:04:15,108 INFO L244 CfgBuilder]: Building ICFG [2024-01-31 16:04:15,110 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-31 16:04:15,546 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-31 16:04:15,546 INFO L293 CfgBuilder]: Performing block encoding [2024-01-31 16:04:15,771 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-31 16:04:15,771 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-31 16:04:15,773 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:04:15 BoogieIcfgContainer [2024-01-31 16:04:15,773 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-31 16:04:15,775 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-31 16:04:15,775 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-31 16:04:15,779 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-31 16:04:15,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:04:13" (1/4) ... [2024-01-31 16:04:15,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa873af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:04:15, skipping insertion in model container [2024-01-31 16:04:15,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:04:13" (2/4) ... [2024-01-31 16:04:15,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa873af and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 04:04:15, skipping insertion in model container [2024-01-31 16:04:15,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:04:14" (3/4) ... [2024-01-31 16:04:15,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa873af and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 04:04:15, skipping insertion in model container [2024-01-31 16:04:15,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:04:15" (4/4) ... [2024-01-31 16:04:15,782 INFO L112 eAbstractionObserver]: Analyzing ICFG safe030_tso.i [2024-01-31 16:04:15,797 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-31 16:04:15,797 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2024-01-31 16:04:15,797 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-31 16:04:15,889 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-31 16:04:15,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 98 transitions, 208 flow [2024-01-31 16:04:15,980 INFO L124 PetriNetUnfolderBase]: 1/95 cut-off events. [2024-01-31 16:04:15,980 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:04:15,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 95 events. 1/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 403 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2024-01-31 16:04:15,987 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 98 transitions, 208 flow [2024-01-31 16:04:15,991 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 95 transitions, 199 flow [2024-01-31 16:04:16,004 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 16:04:16,011 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;@6e680a24, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 16:04:16,011 INFO L358 AbstractCegarLoop]: Starting to check reachability of 85 error locations. [2024-01-31 16:04:16,013 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 16:04:16,013 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-31 16:04:16,014 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:04:16,014 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:04:16,014 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-31 16:04:16,015 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 82 more)] === [2024-01-31 16:04:16,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:04:16,069 INFO L85 PathProgramCache]: Analyzing trace with hash 12371, now seen corresponding path program 1 times [2024-01-31 16:04:16,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:04:16,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228895052] [2024-01-31 16:04:16,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:04:16,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:04:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:04:16,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:04:16,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:04:16,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228895052] [2024-01-31 16:04:16,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228895052] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:04:16,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:04:16,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-31 16:04:16,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481115790] [2024-01-31 16:04:16,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:04:16,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:04:16,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:04:16,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:04:16,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:04:16,506 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 98 [2024-01-31 16:04:16,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 95 transitions, 199 flow. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:04:16,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:04:16,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 98 [2024-01-31 16:04:16,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:04:22,382 INFO L124 PetriNetUnfolderBase]: 28887/49533 cut-off events. [2024-01-31 16:04:22,391 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2024-01-31 16:04:22,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89805 conditions, 49533 events. 28887/49533 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 2372. Compared 478044 event pairs, 22247 based on Foata normal form. 900/29978 useless extension candidates. Maximal degree in co-relation 89792. Up to 39969 conditions per place. [2024-01-31 16:04:23,001 INFO L140 encePairwiseOnDemand]: 79/98 looper letters, 52 selfloop transitions, 4 changer transitions 0/94 dead transitions. [2024-01-31 16:04:23,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 94 transitions, 315 flow [2024-01-31 16:04:23,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 16:04:23,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 16:04:23,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 198 transitions. [2024-01-31 16:04:23,015 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.673469387755102 [2024-01-31 16:04:23,017 INFO L175 Difference]: Start difference. First operand has 104 places, 95 transitions, 199 flow. Second operand 3 states and 198 transitions. [2024-01-31 16:04:23,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 94 transitions, 315 flow [2024-01-31 16:04:23,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 94 transitions, 310 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-31 16:04:23,030 INFO L231 Difference]: Finished difference. Result has 92 places, 85 transitions, 198 flow [2024-01-31 16:04:23,032 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=92, PETRI_TRANSITIONS=85} [2024-01-31 16:04:23,042 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -12 predicate places. [2024-01-31 16:04:23,042 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 85 transitions, 198 flow [2024-01-31 16:04:23,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:04:23,043 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:04:23,043 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-31 16:04:23,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-31 16:04:23,043 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 82 more)] === [2024-01-31 16:04:23,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:04:23,044 INFO L85 PathProgramCache]: Analyzing trace with hash 369059544, now seen corresponding path program 1 times [2024-01-31 16:04:23,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:04:23,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558387398] [2024-01-31 16:04:23,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:04:23,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:04:23,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:04:23,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:04:23,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:04:23,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558387398] [2024-01-31 16:04:23,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558387398] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:04:23,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:04:23,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:04:23,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211087738] [2024-01-31 16:04:23,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:04:23,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:04:23,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:04:23,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:04:23,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:04:23,178 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 98 [2024-01-31 16:04:23,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 85 transitions, 198 flow. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:04:23,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:04:23,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 98 [2024-01-31 16:04:23,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:04:29,206 INFO L124 PetriNetUnfolderBase]: 31811/53674 cut-off events. [2024-01-31 16:04:29,207 INFO L125 PetriNetUnfolderBase]: For 4670/4715 co-relation queries the response was YES. [2024-01-31 16:04:29,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103654 conditions, 53674 events. 31811/53674 cut-off events. For 4670/4715 co-relation queries the response was YES. Maximal size of possible extension queue 2511. Compared 512424 event pairs, 23235 based on Foata normal form. 4456/40955 useless extension candidates. Maximal degree in co-relation 103641. Up to 41132 conditions per place. [2024-01-31 16:04:29,642 INFO L140 encePairwiseOnDemand]: 91/98 looper letters, 80 selfloop transitions, 2 changer transitions 0/114 dead transitions. [2024-01-31 16:04:29,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 114 transitions, 438 flow [2024-01-31 16:04:29,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 16:04:29,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 16:04:29,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 226 transitions. [2024-01-31 16:04:29,645 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.576530612244898 [2024-01-31 16:04:29,645 INFO L175 Difference]: Start difference. First operand has 92 places, 85 transitions, 198 flow. Second operand 4 states and 226 transitions. [2024-01-31 16:04:29,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 114 transitions, 438 flow [2024-01-31 16:04:29,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 114 transitions, 432 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-31 16:04:29,648 INFO L231 Difference]: Finished difference. Result has 89 places, 80 transitions, 188 flow [2024-01-31 16:04:29,648 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=188, PETRI_PLACES=89, PETRI_TRANSITIONS=80} [2024-01-31 16:04:29,649 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -15 predicate places. [2024-01-31 16:04:29,649 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 80 transitions, 188 flow [2024-01-31 16:04:29,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:04:29,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:04:29,649 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-31 16:04:29,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-31 16:04:29,650 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 82 more)] === [2024-01-31 16:04:29,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:04:29,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1444055570, now seen corresponding path program 1 times [2024-01-31 16:04:29,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:04:29,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622642813] [2024-01-31 16:04:29,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:04:29,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:04:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:04:29,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:04:29,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:04:29,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622642813] [2024-01-31 16:04:29,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622642813] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:04:29,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:04:29,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:04:29,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718215106] [2024-01-31 16:04:29,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:04:29,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-31 16:04:29,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:04:29,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-31 16:04:29,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-31 16:04:29,853 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 98 [2024-01-31 16:04:29,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 80 transitions, 188 flow. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:04:29,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:04:29,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 98 [2024-01-31 16:04:29,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:04:37,519 INFO L124 PetriNetUnfolderBase]: 43753/73411 cut-off events. [2024-01-31 16:04:37,519 INFO L125 PetriNetUnfolderBase]: For 7414/7431 co-relation queries the response was YES. [2024-01-31 16:04:37,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142518 conditions, 73411 events. 43753/73411 cut-off events. For 7414/7431 co-relation queries the response was YES. Maximal size of possible extension queue 3321. Compared 715787 event pairs, 33737 based on Foata normal form. 27/51370 useless extension candidates. Maximal degree in co-relation 142504. Up to 60317 conditions per place. [2024-01-31 16:04:38,014 INFO L140 encePairwiseOnDemand]: 92/98 looper letters, 65 selfloop transitions, 7 changer transitions 0/100 dead transitions. [2024-01-31 16:04:38,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 100 transitions, 386 flow [2024-01-31 16:04:38,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 16:04:38,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 16:04:38,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 197 transitions. [2024-01-31 16:04:38,016 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5025510204081632 [2024-01-31 16:04:38,016 INFO L175 Difference]: Start difference. First operand has 89 places, 80 transitions, 188 flow. Second operand 4 states and 197 transitions. [2024-01-31 16:04:38,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 100 transitions, 386 flow [2024-01-31 16:04:38,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 100 transitions, 382 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 16:04:38,019 INFO L231 Difference]: Finished difference. Result has 92 places, 83 transitions, 221 flow [2024-01-31 16:04:38,019 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=221, PETRI_PLACES=92, PETRI_TRANSITIONS=83} [2024-01-31 16:04:38,020 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -12 predicate places. [2024-01-31 16:04:38,021 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 83 transitions, 221 flow [2024-01-31 16:04:38,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:04:38,021 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:04:38,021 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:04:38,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-31 16:04:38,021 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 82 more)] === [2024-01-31 16:04:38,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:04:38,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1816790570, now seen corresponding path program 1 times [2024-01-31 16:04:38,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:04:38,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627941804] [2024-01-31 16:04:38,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:04:38,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:04:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:04:38,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:04:38,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:04:38,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627941804] [2024-01-31 16:04:38,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627941804] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:04:38,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:04:38,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:04:38,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480898924] [2024-01-31 16:04:38,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:04:38,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:04:38,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:04:38,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:04:38,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:04:38,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 98 [2024-01-31 16:04:38,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 83 transitions, 221 flow. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:04:38,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:04:38,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 98 [2024-01-31 16:04:38,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:04:43,644 INFO L124 PetriNetUnfolderBase]: 33743/55309 cut-off events. [2024-01-31 16:04:43,644 INFO L125 PetriNetUnfolderBase]: For 6538/6593 co-relation queries the response was YES. [2024-01-31 16:04:43,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109969 conditions, 55309 events. 33743/55309 cut-off events. For 6538/6593 co-relation queries the response was YES. Maximal size of possible extension queue 2724. Compared 507280 event pairs, 23136 based on Foata normal form. 4887/42869 useless extension candidates. Maximal degree in co-relation 109953. Up to 44012 conditions per place. [2024-01-31 16:04:44,059 INFO L140 encePairwiseOnDemand]: 91/98 looper letters, 89 selfloop transitions, 2 changer transitions 0/119 dead transitions. [2024-01-31 16:04:44,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 119 transitions, 507 flow [2024-01-31 16:04:44,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 16:04:44,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 16:04:44,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 232 transitions. [2024-01-31 16:04:44,061 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5918367346938775 [2024-01-31 16:04:44,061 INFO L175 Difference]: Start difference. First operand has 92 places, 83 transitions, 221 flow. Second operand 4 states and 232 transitions. [2024-01-31 16:04:44,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 119 transitions, 507 flow [2024-01-31 16:04:44,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 119 transitions, 487 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 16:04:44,071 INFO L231 Difference]: Finished difference. Result has 88 places, 78 transitions, 203 flow [2024-01-31 16:04:44,071 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=203, PETRI_PLACES=88, PETRI_TRANSITIONS=78} [2024-01-31 16:04:44,072 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -16 predicate places. [2024-01-31 16:04:44,072 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 78 transitions, 203 flow [2024-01-31 16:04:44,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:04:44,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:04:44,073 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:04:44,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-31 16:04:44,073 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 82 more)] === [2024-01-31 16:04:44,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:04:44,073 INFO L85 PathProgramCache]: Analyzing trace with hash -485932346, now seen corresponding path program 1 times [2024-01-31 16:04:44,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:04:44,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449178591] [2024-01-31 16:04:44,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:04:44,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:04:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:04:44,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:04:44,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:04:44,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449178591] [2024-01-31 16:04:44,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449178591] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:04:44,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:04:44,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:04:44,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969306700] [2024-01-31 16:04:44,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:04:44,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-31 16:04:44,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:04:44,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-31 16:04:44,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-31 16:04:44,250 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 98 [2024-01-31 16:04:44,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 78 transitions, 203 flow. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:04:44,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:04:44,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 98 [2024-01-31 16:04:44,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand