./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-ext/03_incdec-pthread.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/03_incdec-pthread.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-ext/03_incdec-pthread.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/03_incdec-pthread.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 16:01:09,170 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-31 16:01:09,216 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-31 16:01:09,219 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-31 16:01:09,219 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-31 16:01:09,234 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-31 16:01:09,235 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-31 16:01:09,235 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-31 16:01:09,236 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-31 16:01:09,236 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-31 16:01:09,236 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-31 16:01:09,236 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-31 16:01:09,237 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-31 16:01:09,237 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-31 16:01:09,238 INFO L153 SettingsManager]: * Use SBE=true [2024-01-31 16:01:09,238 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-31 16:01:09,238 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-31 16:01:09,238 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-31 16:01:09,239 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-31 16:01:09,239 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-31 16:01:09,239 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-31 16:01:09,240 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-31 16:01:09,240 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-31 16:01:09,240 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-31 16:01:09,241 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-31 16:01:09,241 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-31 16:01:09,241 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-31 16:01:09,241 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-31 16:01:09,242 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-31 16:01:09,242 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-31 16:01:09,242 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-31 16:01:09,242 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-31 16:01:09,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:01:09,243 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-31 16:01:09,243 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-31 16:01:09,243 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-31 16:01:09,244 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-31 16:01:09,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-31 16:01:09,244 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-31 16:01:09,244 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-31 16:01:09,244 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-31 16:01:09,245 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-31 16:01:09,245 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-31 16:01:09,245 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-31 16:01:09,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-31 16:01:09,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-31 16:01:09,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-31 16:01:09,472 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-31 16:01:09,472 INFO L274 PluginConnector]: CDTParser initialized [2024-01-31 16:01:09,473 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/03_incdec-pthread.i [2024-01-31 16:01:10,799 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-31 16:01:11,250 INFO L384 CDTParser]: Found 1 translation units. [2024-01-31 16:01:11,251 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/03_incdec-pthread.i [2024-01-31 16:01:11,283 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad8f9e20d/e0644f87dbc8432a834b29b6a4fbf7cd/FLAG45335d43d [2024-01-31 16:01:11,338 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad8f9e20d/e0644f87dbc8432a834b29b6a4fbf7cd [2024-01-31 16:01:11,341 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-31 16:01:11,342 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-31 16:01:11,343 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/03_incdec-pthread.yml/witness.yml [2024-01-31 16:01:11,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-31 16:01:11,488 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-31 16:01:11,490 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-31 16:01:11,490 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-31 16:01:11,495 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-31 16:01:11,496 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:01:11" (1/2) ... [2024-01-31 16:01:11,499 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@633efdae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:01:11, skipping insertion in model container [2024-01-31 16:01:11,499 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:01:11" (1/2) ... [2024-01-31 16:01:11,500 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@68066a44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:01:11, skipping insertion in model container [2024-01-31 16:01:11,501 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:01:11" (2/2) ... [2024-01-31 16:01:11,501 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@633efdae and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:11, skipping insertion in model container [2024-01-31 16:01:11,501 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:01:11" (2/2) ... [2024-01-31 16:01:11,502 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-31 16:01:11,585 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-31 16:01:11,586 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] ((((1U <= dec_v) && (1U <= (unsigned int )value)) && ((unsigned int )inc_flag == 0U)) && (dec_v != 0U)) && ((unsigned int )value != 0U) [2024-01-31 16:01:11,586 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] ((((1U <= (unsigned int )value) && (inc_v <= 4294967294U)) && ((unsigned int )inc_flag == 1U)) && (inc_v != 4294967295U)) && ((unsigned int )value != 0U) [2024-01-31 16:01:11,587 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] (1U <= dec_v) && (dec_v != 0U) [2024-01-31 16:01:11,587 INFO L98 nessWitnessExtractor]: Location invariant before [L720-L720] ((unsigned long )arg == 0UL) && (r != 0) [2024-01-31 16:01:11,587 INFO L98 nessWitnessExtractor]: Location invariant after [L700-L700] (inc_v <= 4294967294U) && (inc_v != 4294967295U) [2024-01-31 16:01:11,587 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] (((inc_v <= 4294967294U) && ((unsigned int )value <= 4294967294U)) && (inc_v != 4294967295U)) && ((unsigned int )value != 4294967295U) [2024-01-31 16:01:11,588 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] (1U <= dec_v) && (dec_v != 0U) [2024-01-31 16:01:11,591 INFO L98 nessWitnessExtractor]: Location invariant after [L700-L700] (((inc_v <= 4294967294U) && ((unsigned int )value <= 4294967294U)) && ((unsigned int )dec_flag == 0U)) && (inc_v != 4294967295U) [2024-01-31 16:01:11,591 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] (inc_v <= 4294967294U) && (inc_v != 4294967295U) [2024-01-31 16:01:11,591 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] (unsigned int )value == 0U [2024-01-31 16:01:11,591 INFO L98 nessWitnessExtractor]: Location invariant before [L722-L722] (unsigned long )arg == 0UL [2024-01-31 16:01:11,592 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] (1U <= dec_v) && (dec_v != 0U) [2024-01-31 16:01:11,592 INFO L98 nessWitnessExtractor]: Location invariant after [L720-L720] ((unsigned long )arg == 0UL) && (r != 0) [2024-01-31 16:01:11,592 INFO L98 nessWitnessExtractor]: Location invariant before [L720-L720] (unsigned long )arg == 0UL [2024-01-31 16:01:11,592 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] (inc_v <= 4294967294U) && (inc_v != 4294967295U) [2024-01-31 16:01:11,592 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] (1U <= dec_v) && (dec_v != 0U) [2024-01-31 16:01:11,593 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (0U == inc_v) && (inc_v == 0U) [2024-01-31 16:01:11,593 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] ((((1U <= dec_v) && ((unsigned int )value <= 4294967294U)) && ((unsigned int )dec_flag == 1U)) && (dec_v != 0U)) && ((unsigned int )value != 4294967295U) [2024-01-31 16:01:11,593 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] (inc_v <= 4294967294U) && (inc_v != 4294967295U) [2024-01-31 16:01:11,593 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] ((0U == inc_v) && (inc_v == 0U)) && ((unsigned int )value == 4294967295U) [2024-01-31 16:01:11,593 INFO L98 nessWitnessExtractor]: Location invariant before [L721-L721] (r == 0) && ((unsigned long )arg == 0UL) [2024-01-31 16:01:11,594 INFO L98 nessWitnessExtractor]: Location invariant before [L719-L719] (unsigned long )arg == 0UL [2024-01-31 16:01:11,594 INFO L98 nessWitnessExtractor]: Location invariant after [L714-L714] ((((1U <= dec_v) && (1U <= (unsigned int )value)) && ((unsigned int )inc_flag == 0U)) && (dec_v != 0U)) && ((unsigned int )value != 0U) [2024-01-31 16:01:11,594 INFO L98 nessWitnessExtractor]: Location invariant before [L697-L697] ((((unsigned int )value <= 4294967294U) && (0U == inc_v)) && (inc_v == 0U)) && ((unsigned int )value != 4294967295U) [2024-01-31 16:01:11,594 INFO L98 nessWitnessExtractor]: Location invariant before [L712-L712] (((1U <= dec_v) && (1U <= (unsigned int )value)) && (dec_v != 0U)) && ((unsigned int )value != 0U) [2024-01-31 16:01:11,595 INFO L98 nessWitnessExtractor]: Location invariant before [L711-L711] (1U <= (unsigned int )value) && ((unsigned int )value != 0U) [2024-01-31 16:01:11,595 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (0U == inc_v) && (inc_v == 0U) [2024-01-31 16:01:11,595 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] (inc_v <= 4294967294U) && (inc_v != 4294967295U) [2024-01-31 16:01:11,595 INFO L98 nessWitnessExtractor]: Location invariant before [L695-L695] (0U == inc_v) && (inc_v == 0U) [2024-01-31 16:01:11,595 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] (((inc_v <= 4294967294U) && ((unsigned int )value <= 4294967294U)) && ((unsigned int )dec_flag == 0U)) && (inc_v != 4294967295U) [2024-01-31 16:01:11,595 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] (1U <= dec_v) && (dec_v != 0U) [2024-01-31 16:01:11,595 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] (inc_v <= 4294967294U) && (inc_v != 4294967295U) [2024-01-31 16:01:11,596 INFO L98 nessWitnessExtractor]: Location invariant after [L714-L714] (1U <= dec_v) && (dec_v != 0U) [2024-01-31 16:01:11,596 INFO L98 nessWitnessExtractor]: Location invariant after [L719-L719] (unsigned long )arg == 0UL [2024-01-31 16:01:11,640 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-01-31 16:01:11,930 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-ext/03_incdec-pthread.i[30745,30758] [2024-01-31 16:01:11,937 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-ext/03_incdec-pthread.i[31120,31133] [2024-01-31 16:01:11,944 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:01:11,957 INFO L204 MainTranslator]: Completed pre-run 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 16:01:12,052 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-ext/03_incdec-pthread.i[30745,30758] Start Parsing Local Start Parsing Local [2024-01-31 16:01:12,073 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 [2024-01-31 16:01:12,091 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-ext/03_incdec-pthread.i[31120,31133] Start Parsing Local Start Parsing Local [2024-01-31 16:01:12,093 WARN L424 MainDispatcher]: Unable to annotate ; with a witness entry Start Parsing Local Start Parsing Local [2024-01-31 16:01:12,095 WARN L424 MainDispatcher]: Unable to annotate int with a witness entry [2024-01-31 16:01:12,095 WARN L424 MainDispatcher]: Unable to annotate r = __VERIFIER_nondet_int() with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-31 16:01:12,099 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:01:12,148 INFO L208 MainTranslator]: Completed translation [2024-01-31 16:01:12,149 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:12 WrapperNode [2024-01-31 16:01:12,149 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-31 16:01:12,151 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-31 16:01:12,151 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-31 16:01:12,151 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-31 16:01:12,157 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 04:01:12" (1/1) ... [2024-01-31 16:01:12,180 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 04:01:12" (1/1) ... [2024-01-31 16:01:12,210 INFO L138 Inliner]: procedures = 165, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 124 [2024-01-31 16:01:12,211 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-31 16:01:12,212 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-31 16:01:12,212 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-31 16:01:12,212 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-31 16:01:12,222 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 04:01:12" (1/1) ... [2024-01-31 16:01:12,222 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 04:01:12" (1/1) ... [2024-01-31 16:01:12,235 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 04:01:12" (1/1) ... [2024-01-31 16:01:12,258 INFO L175 MemorySlicer]: Split 8 memory accesses to 3 slices as follows [2, 5, 1]. 63 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 1 writes are split as follows [0, 0, 1]. [2024-01-31 16:01:12,259 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 04:01:12" (1/1) ... [2024-01-31 16:01:12,259 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 04:01:12" (1/1) ... [2024-01-31 16:01:12,281 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 04:01:12" (1/1) ... [2024-01-31 16:01:12,287 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 04:01:12" (1/1) ... [2024-01-31 16:01:12,288 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 04:01:12" (1/1) ... [2024-01-31 16:01:12,289 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 04:01:12" (1/1) ... [2024-01-31 16:01:12,291 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-31 16:01:12,292 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-31 16:01:12,292 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-31 16:01:12,292 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-31 16:01:12,293 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 04:01:12" (1/1) ... [2024-01-31 16:01:12,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:01:12,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 16:01:12,327 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 16:01:12,340 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 16:01:12,368 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-01-31 16:01:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-01-31 16:01:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-31 16:01:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-31 16:01:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-31 16:01:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-31 16:01:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-31 16:01:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-31 16:01:12,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-31 16:01:12,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-31 16:01:12,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-31 16:01:12,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-31 16:01:12,370 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-31 16:01:12,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-31 16:01:12,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-31 16:01:12,371 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 16:01:12,464 INFO L244 CfgBuilder]: Building ICFG [2024-01-31 16:01:12,471 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-31 16:01:12,839 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-31 16:01:12,839 INFO L293 CfgBuilder]: Performing block encoding [2024-01-31 16:01:12,959 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-31 16:01:12,972 INFO L320 CfgBuilder]: Removed 1 assume(true) statements. [2024-01-31 16:01:12,973 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:01:12 BoogieIcfgContainer [2024-01-31 16:01:12,973 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-31 16:01:12,975 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-31 16:01:12,975 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-31 16:01:12,978 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-31 16:01:12,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:01:11" (1/4) ... [2024-01-31 16:01:12,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44128138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:01:12, skipping insertion in model container [2024-01-31 16:01:12,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:01:11" (2/4) ... [2024-01-31 16:01:12,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44128138 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 04:01:12, skipping insertion in model container [2024-01-31 16:01:12,988 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 04:01:12" (3/4) ... [2024-01-31 16:01:12,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44128138 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 04:01:12, skipping insertion in model container [2024-01-31 16:01:12,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:01:12" (4/4) ... [2024-01-31 16:01:12,989 INFO L112 eAbstractionObserver]: Analyzing ICFG 03_incdec-pthread.i [2024-01-31 16:01:13,019 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-31 16:01:13,020 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2024-01-31 16:01:13,021 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-31 16:01:13,101 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-31 16:01:13,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 93 transitions, 190 flow [2024-01-31 16:01:13,177 INFO L124 PetriNetUnfolderBase]: 5/95 cut-off events. [2024-01-31 16:01:13,177 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:01:13,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 95 events. 5/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 253 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2024-01-31 16:01:13,181 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 93 transitions, 190 flow [2024-01-31 16:01:13,184 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 93 transitions, 190 flow [2024-01-31 16:01:13,198 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 16:01:13,205 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;@50e59c11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 16:01:13,205 INFO L358 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2024-01-31 16:01:13,208 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 16:01:13,208 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-01-31 16:01:13,208 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:01:13,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:01:13,209 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-31 16:01:13,210 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (and 52 more)] === [2024-01-31 16:01:13,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:01:13,213 INFO L85 PathProgramCache]: Analyzing trace with hash 327377420, now seen corresponding path program 1 times [2024-01-31 16:01:13,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:01:13,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380304444] [2024-01-31 16:01:13,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:01:13,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:01:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:01:13,558 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 16:01:13,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:01:13,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380304444] [2024-01-31 16:01:13,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380304444] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:01:13,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:01:13,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:01:13,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216051306] [2024-01-31 16:01:13,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:01:13,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:01:13,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:01:13,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:01:13,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:01:13,603 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 93 [2024-01-31 16:01:13,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 93 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 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 16:01:13,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:01:13,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 93 [2024-01-31 16:01:13,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:01:13,705 INFO L124 PetriNetUnfolderBase]: 51/297 cut-off events. [2024-01-31 16:01:13,705 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:01:13,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 421 conditions, 297 events. 51/297 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1514 event pairs, 0 based on Foata normal form. 9/249 useless extension candidates. Maximal degree in co-relation 409. Up to 114 conditions per place. [2024-01-31 16:01:13,708 INFO L140 encePairwiseOnDemand]: 86/93 looper letters, 29 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2024-01-31 16:01:13,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 91 transitions, 248 flow [2024-01-31 16:01:13,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 16:01:13,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 16:01:13,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 278 transitions. [2024-01-31 16:01:13,718 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7473118279569892 [2024-01-31 16:01:13,720 INFO L175 Difference]: Start difference. First operand has 91 places, 93 transitions, 190 flow. Second operand 4 states and 278 transitions. [2024-01-31 16:01:13,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 91 transitions, 248 flow [2024-01-31 16:01:13,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 91 transitions, 248 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-31 16:01:13,725 INFO L231 Difference]: Finished difference. Result has 91 places, 88 transitions, 184 flow [2024-01-31 16:01:13,727 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=184, PETRI_PLACES=91, PETRI_TRANSITIONS=88} [2024-01-31 16:01:13,730 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 0 predicate places. [2024-01-31 16:01:13,730 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 88 transitions, 184 flow [2024-01-31 16:01:13,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 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 16:01:13,731 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:01:13,731 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-31 16:01:13,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-31 16:01:13,731 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (and 52 more)] === [2024-01-31 16:01:13,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:01:13,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1558765831, now seen corresponding path program 1 times [2024-01-31 16:01:13,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:01:13,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912479825] [2024-01-31 16:01:13,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:01:13,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:01:13,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-31 16:01:13,746 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-31 16:01:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-31 16:01:13,767 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-31 16:01:13,768 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-31 16:01:13,769 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 55 remaining) [2024-01-31 16:01:13,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 55 remaining) [2024-01-31 16:01:13,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 55 remaining) [2024-01-31 16:01:13,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 55 remaining) [2024-01-31 16:01:13,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 55 remaining) [2024-01-31 16:01:13,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 55 remaining) [2024-01-31 16:01:13,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 55 remaining) [2024-01-31 16:01:13,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 55 remaining) [2024-01-31 16:01:13,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 55 remaining) [2024-01-31 16:01:13,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 55 remaining) [2024-01-31 16:01:13,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 55 remaining) [2024-01-31 16:01:13,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 55 remaining) [2024-01-31 16:01:13,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 55 remaining) [2024-01-31 16:01:13,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 55 remaining) [2024-01-31 16:01:13,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 55 remaining) [2024-01-31 16:01:13,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 55 remaining) [2024-01-31 16:01:13,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 55 remaining) [2024-01-31 16:01:13,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 55 remaining) [2024-01-31 16:01:13,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 55 remaining) [2024-01-31 16:01:13,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 55 remaining) [2024-01-31 16:01:13,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 55 remaining) [2024-01-31 16:01:13,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 55 remaining) [2024-01-31 16:01:13,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONERROR_FUNCTION (32 of 55 remaining) [2024-01-31 16:01:13,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 55 remaining) [2024-01-31 16:01:13,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 55 remaining) [2024-01-31 16:01:13,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONERROR_FUNCTION (29 of 55 remaining) [2024-01-31 16:01:13,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 55 remaining) [2024-01-31 16:01:13,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 55 remaining) [2024-01-31 16:01:13,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 55 remaining) [2024-01-31 16:01:13,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 55 remaining) [2024-01-31 16:01:13,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 55 remaining) [2024-01-31 16:01:13,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 55 remaining) [2024-01-31 16:01:13,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 55 remaining) [2024-01-31 16:01:13,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 55 remaining) [2024-01-31 16:01:13,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 55 remaining) [2024-01-31 16:01:13,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 55 remaining) [2024-01-31 16:01:13,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 55 remaining) [2024-01-31 16:01:13,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 55 remaining) [2024-01-31 16:01:13,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 55 remaining) [2024-01-31 16:01:13,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 55 remaining) [2024-01-31 16:01:13,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 55 remaining) [2024-01-31 16:01:13,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 55 remaining) [2024-01-31 16:01:13,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 55 remaining) [2024-01-31 16:01:13,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 55 remaining) [2024-01-31 16:01:13,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 55 remaining) [2024-01-31 16:01:13,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 55 remaining) [2024-01-31 16:01:13,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 55 remaining) [2024-01-31 16:01:13,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 55 remaining) [2024-01-31 16:01:13,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 55 remaining) [2024-01-31 16:01:13,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONERROR_FUNCTION (5 of 55 remaining) [2024-01-31 16:01:13,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 55 remaining) [2024-01-31 16:01:13,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 55 remaining) [2024-01-31 16:01:13,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONERROR_FUNCTION (2 of 55 remaining) [2024-01-31 16:01:13,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 55 remaining) [2024-01-31 16:01:13,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 55 remaining) [2024-01-31 16:01:13,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-31 16:01:13,780 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-01-31 16:01:13,786 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-31 16:01:13,786 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-31 16:01:13,801 INFO L503 ceAbstractionStarter]: Automizer considered 25 witness invariants [2024-01-31 16:01:13,802 INFO L504 ceAbstractionStarter]: WitnessConsidered=25 [2024-01-31 16:01:13,802 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:01:13 BasicIcfg [2024-01-31 16:01:13,802 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-31 16:01:13,803 INFO L158 Benchmark]: Toolchain (without parser) took 2315.47ms. Allocated memory is still 151.0MB. Free memory was 120.1MB in the beginning and 71.3MB in the end (delta: 48.8MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2024-01-31 16:01:13,803 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 125.8MB. Free memory was 86.0MB in the beginning and 85.8MB in the end (delta: 131.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:01:13,804 INFO L158 Benchmark]: Witness Parser took 0.11ms. Allocated memory is still 151.0MB. Free memory was 123.4MB in the beginning and 123.4MB in the end (delta: 18.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:01:13,804 INFO L158 Benchmark]: CACSL2BoogieTranslator took 659.35ms. Allocated memory is still 151.0MB. Free memory was 120.1MB in the beginning and 86.5MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-01-31 16:01:13,804 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.51ms. Allocated memory is still 151.0MB. Free memory was 86.5MB in the beginning and 84.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-31 16:01:13,805 INFO L158 Benchmark]: Boogie Preprocessor took 79.58ms. Allocated memory is still 151.0MB. Free memory was 84.3MB in the beginning and 81.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-31 16:01:13,805 INFO L158 Benchmark]: RCFGBuilder took 681.29ms. Allocated memory is still 151.0MB. Free memory was 81.2MB in the beginning and 49.7MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-01-31 16:01:13,805 INFO L158 Benchmark]: TraceAbstraction took 827.63ms. Allocated memory is still 151.0MB. Free memory was 48.8MB in the beginning and 71.3MB in the end (delta: -22.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:01:13,807 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 125.8MB. Free memory was 86.0MB in the beginning and 85.8MB in the end (delta: 131.0kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.11ms. Allocated memory is still 151.0MB. Free memory was 123.4MB in the beginning and 123.4MB in the end (delta: 18.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 659.35ms. Allocated memory is still 151.0MB. Free memory was 120.1MB in the beginning and 86.5MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.51ms. Allocated memory is still 151.0MB. Free memory was 86.5MB in the beginning and 84.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.58ms. Allocated memory is still 151.0MB. Free memory was 84.3MB in the beginning and 81.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 681.29ms. Allocated memory is still 151.0MB. Free memory was 81.2MB in the beginning and 49.7MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 827.63ms. Allocated memory is still 151.0MB. Free memory was 48.8MB in the beginning and 71.3MB in the end (delta: -22.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 720]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L686] 0 volatile unsigned value = 0; [L687] 0 pthread_mutex_t m = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L687] 0 pthread_mutex_t m = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L687] 0 pthread_mutex_t m = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L687] 0 pthread_mutex_t m = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L687] 0 pthread_mutex_t m = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L687] 0 pthread_mutex_t m = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L688] 0 volatile unsigned inc_flag = 0; [L689] 0 volatile unsigned dec_flag = 0; [L725] 0 pthread_t t; VAL [dec_flag=0, inc_flag=0, m={3:0}, t={5:0}, value=0] [L726] COND TRUE 0 1 [L726] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [dec_flag=0, inc_flag=0, m={3:0}, t={5:0}, value=0] [L719] 1 int r = __VERIFIER_nondet_int(); [L720] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, dec_flag=0, inc_flag=0, m={3:0}, r=0, value=0] [L720] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]],BinaryExpression[COMPNEQ,IdentifierExpression[r],IntegerLiteral[0]]]]] VAL [arg={0:0}, arg={0:0}, dec_flag=0, inc_flag=0, m={3:0}, r=0, value=0] - UnprovableResult [Line: 720]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 726]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 172 locations, 55 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 70 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 62 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-01-31 16:01:13,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE