./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c --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/popl20-bad-threaded-sum-2.wvr.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/weaver/popl20-bad-threaded-sum-2.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-bad-threaded-sum-2.wvr.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 16:10:31,298 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-31 16:10:31,369 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-31 16:10:31,373 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-31 16:10:31,374 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-31 16:10:31,388 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-31 16:10:31,388 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-31 16:10:31,388 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-31 16:10:31,389 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-31 16:10:31,389 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-31 16:10:31,389 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-31 16:10:31,389 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-31 16:10:31,390 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-31 16:10:31,390 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-31 16:10:31,390 INFO L153 SettingsManager]: * Use SBE=true [2024-01-31 16:10:31,391 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-31 16:10:31,391 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-31 16:10:31,391 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-31 16:10:31,391 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-31 16:10:31,391 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-31 16:10:31,392 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-31 16:10:31,395 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-31 16:10:31,395 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-31 16:10:31,395 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-31 16:10:31,398 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-31 16:10:31,398 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-31 16:10:31,398 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-31 16:10:31,399 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-31 16:10:31,399 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-31 16:10:31,399 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-31 16:10:31,400 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-31 16:10:31,400 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-31 16:10:31,400 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:10:31,401 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-31 16:10:31,401 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-31 16:10:31,401 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-31 16:10:31,401 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-31 16:10:31,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-31 16:10:31,401 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-31 16:10:31,402 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-31 16:10:31,402 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-31 16:10:31,402 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-31 16:10:31,402 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-31 16:10:31,402 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-31 16:10:31,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-31 16:10:31,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-31 16:10:31,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-31 16:10:31,641 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-31 16:10:31,642 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-31 16:10:31,642 INFO L431 ainManager$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/popl20-bad-threaded-sum-2.wvr.yml/witness.yml [2024-01-31 16:10:31,713 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-31 16:10:31,713 INFO L274 PluginConnector]: CDTParser initialized [2024-01-31 16:10:31,714 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c [2024-01-31 16:10:32,701 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-31 16:10:32,865 INFO L384 CDTParser]: Found 1 translation units. [2024-01-31 16:10:32,866 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c [2024-01-31 16:10:32,871 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ca88b7c3/695dd98b070f4b189c87877c236f524a/FLAG3354dcd11 [2024-01-31 16:10:32,886 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ca88b7c3/695dd98b070f4b189c87877c236f524a [2024-01-31 16:10:32,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-31 16:10:32,888 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-31 16:10:32,888 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-31 16:10:32,889 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-31 16:10:32,893 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-31 16:10:32,894 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:10:31" (1/2) ... [2024-01-31 16:10:32,895 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cfd856a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:10:32, skipping insertion in model container [2024-01-31 16:10:32,895 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:10:31" (1/2) ... [2024-01-31 16:10:32,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@764cc922 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:10:32, skipping insertion in model container [2024-01-31 16:10:32,897 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:10:32" (2/2) ... [2024-01-31 16:10:32,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cfd856a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:10:32, skipping insertion in model container [2024-01-31 16:10:32,897 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:10:32" (2/2) ... [2024-01-31 16:10:32,898 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-31 16:10:32,925 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-31 16:10:32,926 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] (unsigned long )_argptr == 0UL [2024-01-31 16:10:32,926 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (unsigned long )_argptr == 0UL [2024-01-31 16:10:32,926 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] (unsigned long )_argptr == 0UL [2024-01-31 16:10:32,926 INFO L98 nessWitnessExtractor]: Location invariant before [L75-L75] (unsigned long )_argptr == 0UL [2024-01-31 16:10:32,926 INFO L98 nessWitnessExtractor]: Location invariant before [L83-L83] ((m == 0U) && (T == 0U)) && (S == 0U) [2024-01-31 16:10:32,926 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] (s == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-31 16:10:32,926 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-01-31 16:10:32,927 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-31 16:10:32,927 INFO L98 nessWitnessExtractor]: Location invariant after [L42-L42] (s == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-31 16:10:32,927 INFO L98 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-01-31 16:10:32,927 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] m == 0U [2024-01-31 16:10:32,927 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (unsigned long )_argptr == 0UL [2024-01-31 16:10:32,927 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-01-31 16:10:32,927 INFO L98 nessWitnessExtractor]: Location invariant before [L82-L82] (((t == 0U) && (m == 0U)) && (T == 0U)) && (S == 0U) [2024-01-31 16:10:32,927 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] (unsigned long )_argptr == 0UL [2024-01-31 16:10:32,927 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] (unsigned long )_argptr == 0UL [2024-01-31 16:10:32,927 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] ((1U <= s) && ((unsigned long )_argptr == 0UL)) && (s != 0U) [2024-01-31 16:10:32,927 INFO L98 nessWitnessExtractor]: Location invariant after [L61-L61] (unsigned long )_argptr == 0UL [2024-01-31 16:10:32,927 INFO L98 nessWitnessExtractor]: Loop invariant at [L44-L44] (unsigned long )_argptr == 0UL [2024-01-31 16:10:32,928 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (s == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-31 16:10:32,928 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-31 16:10:32,928 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-01-31 16:10:32,928 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-01-31 16:10:32,928 INFO L98 nessWitnessExtractor]: Location invariant before [L84-L84] (m == 0U) && (T == 0U) [2024-01-31 16:10:32,928 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] (unsigned long )_argptr == 0UL [2024-01-31 16:10:32,928 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] ((1U <= s) && (m == 0U)) && (s != 0U) [2024-01-31 16:10:32,928 INFO L98 nessWitnessExtractor]: Location invariant before [L60-L60] (unsigned long )_argptr == 0UL [2024-01-31 16:10:32,928 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] ((s <= 4294967294U) && ((unsigned long )_argptr == 0UL)) && (s != 4294967295U) [2024-01-31 16:10:32,928 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (s <= 4294967294U) && ((unsigned long )_argptr == 0UL) [2024-01-31 16:10:32,928 INFO L98 nessWitnessExtractor]: Location invariant before [L46-L46] (unsigned long )_argptr == 0UL [2024-01-31 16:10:32,929 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (unsigned long )_argptr == 0UL [2024-01-31 16:10:32,929 INFO L98 nessWitnessExtractor]: Location invariant before [L72-L72] (unsigned long )_argptr == 0UL [2024-01-31 16:10:32,929 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-31 16:10:32,929 INFO L98 nessWitnessExtractor]: Location invariant before [L81-L81] ((((s == 0U) && (t == 0U)) && (m == 0U)) && (T == 0U)) && (S == 0U) [2024-01-31 16:10:32,929 INFO L98 nessWitnessExtractor]: Loop invariant at [L63-L63] (unsigned long )_argptr == 0UL [2024-01-31 16:10:32,951 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-01-31 16:10:33,096 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c[2502,2515] [2024-01-31 16:10:33,099 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:10:33,105 INFO L204 MainTranslator]: Completed pre-run Start Parsing Local [2024-01-31 16:10:33,129 WARN L424 MainDispatcher]: Unable to annotate _Bool with a witness entry [2024-01-31 16:10:33,129 WARN L424 MainDispatcher]: Unable to annotate cond = s > 0 || t > 0 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 [2024-01-31 16:10:33,136 WARN L424 MainDispatcher]: Unable to annotate _Bool with a witness entry [2024-01-31 16:10:33,136 WARN L424 MainDispatcher]: Unable to annotate cond = t > 0 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 [2024-01-31 16:10:33,148 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c[2502,2515] [2024-01-31 16:10:33,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:10:33,160 INFO L208 MainTranslator]: Completed translation [2024-01-31 16:10:33,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:10:33 WrapperNode [2024-01-31 16:10:33,164 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-31 16:10:33,166 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-31 16:10:33,166 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-31 16:10:33,166 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-31 16:10:33,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:10:33" (1/1) ... [2024-01-31 16:10:33,186 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:10:33" (1/1) ... [2024-01-31 16:10:33,213 INFO L138 Inliner]: procedures = 21, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2024-01-31 16:10:33,213 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-31 16:10:33,214 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-31 16:10:33,215 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-31 16:10:33,216 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-31 16:10:33,224 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:10:33" (1/1) ... [2024-01-31 16:10:33,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:10:33" (1/1) ... [2024-01-31 16:10:33,235 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:10:33" (1/1) ... [2024-01-31 16:10:33,255 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-01-31 16:10:33,256 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:10:33" (1/1) ... [2024-01-31 16:10:33,256 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:10:33" (1/1) ... [2024-01-31 16:10:33,273 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:10:33" (1/1) ... [2024-01-31 16:10:33,276 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:10:33" (1/1) ... [2024-01-31 16:10:33,276 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:10:33" (1/1) ... [2024-01-31 16:10:33,277 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:10:33" (1/1) ... [2024-01-31 16:10:33,279 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-31 16:10:33,280 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-31 16:10:33,280 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-31 16:10:33,280 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-31 16:10:33,280 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:10:33" (1/1) ... [2024-01-31 16:10:33,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:10:33,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 16:10:33,341 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-31 16:10:33,342 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 16:10:33,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-31 16:10:33,400 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-31 16:10:33,400 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-31 16:10:33,401 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-31 16:10:33,401 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-31 16:10:33,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-31 16:10:33,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-31 16:10:33,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-31 16:10:33,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-31 16:10:33,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-31 16:10:33,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-31 16:10:33,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-31 16:10:33,414 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-31 16:10:33,414 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-31 16:10:33,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-31 16:10:33,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-31 16:10:33,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-31 16:10:33,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-31 16:10:33,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-31 16:10:33,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-31 16:10:33,416 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 16:10:33,493 INFO L244 CfgBuilder]: Building ICFG [2024-01-31 16:10:33,495 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-31 16:10:33,733 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-31 16:10:33,733 INFO L293 CfgBuilder]: Performing block encoding [2024-01-31 16:10:33,852 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-31 16:10:33,852 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-01-31 16:10:33,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:10:33 BoogieIcfgContainer [2024-01-31 16:10:33,852 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-31 16:10:33,854 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-31 16:10:33,854 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-31 16:10:33,856 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-31 16:10:33,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:10:31" (1/4) ... [2024-01-31 16:10:33,857 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76cfb068 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 04:10:33, skipping insertion in model container [2024-01-31 16:10:33,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:10:32" (2/4) ... [2024-01-31 16:10:33,857 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76cfb068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:10:33, skipping insertion in model container [2024-01-31 16:10:33,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:10:33" (3/4) ... [2024-01-31 16:10:33,858 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76cfb068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:10:33, skipping insertion in model container [2024-01-31 16:10:33,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:10:33" (4/4) ... [2024-01-31 16:10:33,859 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-threaded-sum-2.wvr.c [2024-01-31 16:10:33,876 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-31 16:10:33,876 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2024-01-31 16:10:33,876 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-31 16:10:33,947 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-31 16:10:33,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 76 transitions, 166 flow [2024-01-31 16:10:34,017 INFO L124 PetriNetUnfolderBase]: 4/74 cut-off events. [2024-01-31 16:10:34,018 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-31 16:10:34,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 74 events. 4/74 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 179 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2024-01-31 16:10:34,023 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 76 transitions, 166 flow [2024-01-31 16:10:34,027 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 73 transitions, 158 flow [2024-01-31 16:10:34,039 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 16:10:34,046 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;@7436fdb8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 16:10:34,047 INFO L358 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2024-01-31 16:10:34,048 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 16:10:34,049 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-31 16:10:34,049 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:10:34,049 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:10:34,049 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-31 16:10:34,050 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-31 16:10:34,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:10:34,054 INFO L85 PathProgramCache]: Analyzing trace with hash 11749, now seen corresponding path program 1 times [2024-01-31 16:10:34,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:10:34,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816075421] [2024-01-31 16:10:34,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:10:34,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:10:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:10:34,501 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 16:10:34,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:10:34,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816075421] [2024-01-31 16:10:34,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816075421] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:10:34,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:10:34,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-31 16:10:34,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915676465] [2024-01-31 16:10:34,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:10:34,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:10:34,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:10:34,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:10:34,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:10:34,546 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 76 [2024-01-31 16:10:34,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 73 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 16:10:34,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:10:34,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 76 [2024-01-31 16:10:34,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:10:34,713 INFO L124 PetriNetUnfolderBase]: 222/505 cut-off events. [2024-01-31 16:10:34,713 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-01-31 16:10:34,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 928 conditions, 505 events. 222/505 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3139 event pairs, 186 based on Foata normal form. 36/321 useless extension candidates. Maximal degree in co-relation 810. Up to 393 conditions per place. [2024-01-31 16:10:34,720 INFO L140 encePairwiseOnDemand]: 64/76 looper letters, 33 selfloop transitions, 2 changer transitions 0/63 dead transitions. [2024-01-31 16:10:34,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 63 transitions, 208 flow [2024-01-31 16:10:34,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 16:10:34,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 16:10:34,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 135 transitions. [2024-01-31 16:10:34,731 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5921052631578947 [2024-01-31 16:10:34,732 INFO L175 Difference]: Start difference. First operand has 76 places, 73 transitions, 158 flow. Second operand 3 states and 135 transitions. [2024-01-31 16:10:34,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 63 transitions, 208 flow [2024-01-31 16:10:34,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 63 transitions, 200 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-31 16:10:34,742 INFO L231 Difference]: Finished difference. Result has 66 places, 63 transitions, 134 flow [2024-01-31 16:10:34,743 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=66, PETRI_TRANSITIONS=63} [2024-01-31 16:10:34,746 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -10 predicate places. [2024-01-31 16:10:34,746 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 63 transitions, 134 flow [2024-01-31 16:10:34,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 16:10:34,746 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:10:34,747 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-31 16:10:34,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-31 16:10:34,748 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-31 16:10:34,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:10:34,750 INFO L85 PathProgramCache]: Analyzing trace with hash 364568, now seen corresponding path program 1 times [2024-01-31 16:10:34,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:10:34,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574527487] [2024-01-31 16:10:34,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:10:34,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:10:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:10:34,808 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 16:10:34,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:10:34,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574527487] [2024-01-31 16:10:34,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574527487] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:10:34,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:10:34,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-31 16:10:34,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413217868] [2024-01-31 16:10:34,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:10:34,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:10:34,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:10:34,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:10:34,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:10:34,824 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 76 [2024-01-31 16:10:34,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 63 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 16:10:34,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:10:34,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 76 [2024-01-31 16:10:34,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:10:34,929 INFO L124 PetriNetUnfolderBase]: 222/504 cut-off events. [2024-01-31 16:10:34,929 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:10:34,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 909 conditions, 504 events. 222/504 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3158 event pairs, 186 based on Foata normal form. 0/285 useless extension candidates. Maximal degree in co-relation 900. Up to 391 conditions per place. [2024-01-31 16:10:34,935 INFO L140 encePairwiseOnDemand]: 73/76 looper letters, 32 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2024-01-31 16:10:34,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 62 transitions, 200 flow [2024-01-31 16:10:34,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 16:10:34,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 16:10:34,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2024-01-31 16:10:34,940 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5614035087719298 [2024-01-31 16:10:34,940 INFO L175 Difference]: Start difference. First operand has 66 places, 63 transitions, 134 flow. Second operand 3 states and 128 transitions. [2024-01-31 16:10:34,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 62 transitions, 200 flow [2024-01-31 16:10:34,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 62 transitions, 196 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 16:10:34,942 INFO L231 Difference]: Finished difference. Result has 65 places, 62 transitions, 132 flow [2024-01-31 16:10:34,942 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=65, PETRI_TRANSITIONS=62} [2024-01-31 16:10:34,943 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -11 predicate places. [2024-01-31 16:10:34,943 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 62 transitions, 132 flow [2024-01-31 16:10:34,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 16:10:34,943 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:10:34,944 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-31 16:10:34,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-31 16:10:34,944 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-31 16:10:34,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:10:34,944 INFO L85 PathProgramCache]: Analyzing trace with hash 11301959, now seen corresponding path program 1 times [2024-01-31 16:10:34,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:10:34,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633968502] [2024-01-31 16:10:34,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:10:34,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:10:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:10:35,010 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 16:10:35,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:10:35,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633968502] [2024-01-31 16:10:35,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633968502] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:10:35,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:10:35,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-31 16:10:35,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398609228] [2024-01-31 16:10:35,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:10:35,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:10:35,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:10:35,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:10:35,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:10:35,021 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 76 [2024-01-31 16:10:35,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 62 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 16:10:35,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:10:35,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 76 [2024-01-31 16:10:35,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:10:35,101 INFO L124 PetriNetUnfolderBase]: 222/503 cut-off events. [2024-01-31 16:10:35,102 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:10:35,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 907 conditions, 503 events. 222/503 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3116 event pairs, 186 based on Foata normal form. 0/285 useless extension candidates. Maximal degree in co-relation 896. Up to 389 conditions per place. [2024-01-31 16:10:35,104 INFO L140 encePairwiseOnDemand]: 73/76 looper letters, 31 selfloop transitions, 2 changer transitions 0/61 dead transitions. [2024-01-31 16:10:35,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 61 transitions, 196 flow [2024-01-31 16:10:35,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 16:10:35,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 16:10:35,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 130 transitions. [2024-01-31 16:10:35,105 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5701754385964912 [2024-01-31 16:10:35,105 INFO L175 Difference]: Start difference. First operand has 65 places, 62 transitions, 132 flow. Second operand 3 states and 130 transitions. [2024-01-31 16:10:35,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 61 transitions, 196 flow [2024-01-31 16:10:35,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 61 transitions, 192 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 16:10:35,107 INFO L231 Difference]: Finished difference. Result has 64 places, 61 transitions, 130 flow [2024-01-31 16:10:35,107 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=64, PETRI_TRANSITIONS=61} [2024-01-31 16:10:35,108 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -12 predicate places. [2024-01-31 16:10:35,108 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 61 transitions, 130 flow [2024-01-31 16:10:35,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 16:10:35,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:10:35,108 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-31 16:10:35,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-31 16:10:35,108 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-31 16:10:35,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:10:35,109 INFO L85 PathProgramCache]: Analyzing trace with hash 350361128, now seen corresponding path program 1 times [2024-01-31 16:10:35,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:10:35,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031643480] [2024-01-31 16:10:35,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:10:35,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:10:35,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:10:35,145 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 16:10:35,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:10:35,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031643480] [2024-01-31 16:10:35,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031643480] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:10:35,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:10:35,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-31 16:10:35,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999168617] [2024-01-31 16:10:35,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:10:35,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:10:35,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:10:35,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:10:35,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:10:35,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 76 [2024-01-31 16:10:35,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 61 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 16:10:35,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:10:35,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 76 [2024-01-31 16:10:35,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:10:35,239 INFO L124 PetriNetUnfolderBase]: 222/502 cut-off events. [2024-01-31 16:10:35,240 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:10:35,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 905 conditions, 502 events. 222/502 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3135 event pairs, 186 based on Foata normal form. 0/285 useless extension candidates. Maximal degree in co-relation 892. Up to 387 conditions per place. [2024-01-31 16:10:35,242 INFO L140 encePairwiseOnDemand]: 73/76 looper letters, 30 selfloop transitions, 2 changer transitions 0/60 dead transitions. [2024-01-31 16:10:35,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 60 transitions, 192 flow [2024-01-31 16:10:35,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 16:10:35,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 16:10:35,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 132 transitions. [2024-01-31 16:10:35,243 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5789473684210527 [2024-01-31 16:10:35,243 INFO L175 Difference]: Start difference. First operand has 64 places, 61 transitions, 130 flow. Second operand 3 states and 132 transitions. [2024-01-31 16:10:35,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 60 transitions, 192 flow [2024-01-31 16:10:35,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 60 transitions, 188 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 16:10:35,246 INFO L231 Difference]: Finished difference. Result has 63 places, 60 transitions, 128 flow [2024-01-31 16:10:35,248 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=63, PETRI_TRANSITIONS=60} [2024-01-31 16:10:35,248 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -13 predicate places. [2024-01-31 16:10:35,248 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 60 transitions, 128 flow [2024-01-31 16:10:35,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 16:10:35,249 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:10:35,249 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-31 16:10:35,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-31 16:10:35,249 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-31 16:10:35,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:10:35,249 INFO L85 PathProgramCache]: Analyzing trace with hash -2023706580, now seen corresponding path program 1 times [2024-01-31 16:10:35,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:10:35,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639897992] [2024-01-31 16:10:35,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:10:35,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:10:35,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-31 16:10:35,267 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-31 16:10:35,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-31 16:10:35,289 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-31 16:10:35,290 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-31 16:10:35,290 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 59 remaining) [2024-01-31 16:10:35,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 59 remaining) [2024-01-31 16:10:35,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 59 remaining) [2024-01-31 16:10:35,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 59 remaining) [2024-01-31 16:10:35,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 59 remaining) [2024-01-31 16:10:35,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 59 remaining) [2024-01-31 16:10:35,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 59 remaining) [2024-01-31 16:10:35,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 59 remaining) [2024-01-31 16:10:35,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 59 remaining) [2024-01-31 16:10:35,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 59 remaining) [2024-01-31 16:10:35,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 59 remaining) [2024-01-31 16:10:35,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 59 remaining) [2024-01-31 16:10:35,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 59 remaining) [2024-01-31 16:10:35,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 59 remaining) [2024-01-31 16:10:35,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 59 remaining) [2024-01-31 16:10:35,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 59 remaining) [2024-01-31 16:10:35,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 59 remaining) [2024-01-31 16:10:35,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 59 remaining) [2024-01-31 16:10:35,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 59 remaining) [2024-01-31 16:10:35,295 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 59 remaining) [2024-01-31 16:10:35,295 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 59 remaining) [2024-01-31 16:10:35,297 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 59 remaining) [2024-01-31 16:10:35,297 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 59 remaining) [2024-01-31 16:10:35,298 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 59 remaining) [2024-01-31 16:10:35,298 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 59 remaining) [2024-01-31 16:10:35,298 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 59 remaining) [2024-01-31 16:10:35,298 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 59 remaining) [2024-01-31 16:10:35,298 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 59 remaining) [2024-01-31 16:10:35,298 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 59 remaining) [2024-01-31 16:10:35,298 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 59 remaining) [2024-01-31 16:10:35,299 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 59 remaining) [2024-01-31 16:10:35,299 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (27 of 59 remaining) [2024-01-31 16:10:35,299 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 59 remaining) [2024-01-31 16:10:35,299 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 59 remaining) [2024-01-31 16:10:35,299 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 59 remaining) [2024-01-31 16:10:35,299 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 59 remaining) [2024-01-31 16:10:35,300 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 59 remaining) [2024-01-31 16:10:35,300 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 59 remaining) [2024-01-31 16:10:35,300 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 59 remaining) [2024-01-31 16:10:35,300 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 59 remaining) [2024-01-31 16:10:35,300 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 59 remaining) [2024-01-31 16:10:35,300 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 59 remaining) [2024-01-31 16:10:35,300 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 59 remaining) [2024-01-31 16:10:35,301 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 59 remaining) [2024-01-31 16:10:35,301 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 59 remaining) [2024-01-31 16:10:35,301 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 59 remaining) [2024-01-31 16:10:35,301 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 59 remaining) [2024-01-31 16:10:35,301 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 59 remaining) [2024-01-31 16:10:35,301 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 59 remaining) [2024-01-31 16:10:35,302 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 59 remaining) [2024-01-31 16:10:35,302 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 59 remaining) [2024-01-31 16:10:35,302 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 59 remaining) [2024-01-31 16:10:35,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 59 remaining) [2024-01-31 16:10:35,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 59 remaining) [2024-01-31 16:10:35,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 59 remaining) [2024-01-31 16:10:35,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 59 remaining) [2024-01-31 16:10:35,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 59 remaining) [2024-01-31 16:10:35,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 59 remaining) [2024-01-31 16:10:35,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 59 remaining) [2024-01-31 16:10:35,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-31 16:10:35,306 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-01-31 16:10:35,311 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-31 16:10:35,311 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-31 16:10:35,325 INFO L503 ceAbstractionStarter]: Automizer considered 31 witness invariants [2024-01-31 16:10:35,326 INFO L504 ceAbstractionStarter]: WitnessConsidered=31 [2024-01-31 16:10:35,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:10:35 BasicIcfg [2024-01-31 16:10:35,327 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-31 16:10:35,330 INFO L158 Benchmark]: Toolchain (without parser) took 2440.05ms. Allocated memory was 153.1MB in the beginning and 205.5MB in the end (delta: 52.4MB). Free memory was 108.9MB in the beginning and 99.8MB in the end (delta: 9.1MB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. [2024-01-31 16:10:35,331 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 100.7MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:10:35,331 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 100.7MB. Free memory is still 66.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:10:35,331 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.75ms. Allocated memory is still 153.1MB. Free memory was 108.9MB in the beginning and 91.3MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-01-31 16:10:35,331 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.17ms. Allocated memory is still 153.1MB. Free memory was 91.3MB in the beginning and 89.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-31 16:10:35,331 INFO L158 Benchmark]: Boogie Preprocessor took 64.51ms. Allocated memory is still 153.1MB. Free memory was 89.5MB in the beginning and 87.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-31 16:10:35,332 INFO L158 Benchmark]: RCFGBuilder took 573.02ms. Allocated memory is still 153.1MB. Free memory was 87.2MB in the beginning and 84.5MB in the end (delta: 2.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-01-31 16:10:35,332 INFO L158 Benchmark]: TraceAbstraction took 1473.38ms. Allocated memory was 153.1MB in the beginning and 205.5MB in the end (delta: 52.4MB). Free memory was 84.5MB in the beginning and 99.8MB in the end (delta: -15.3MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2024-01-31 16:10:35,333 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.13ms. Allocated memory is still 100.7MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 100.7MB. Free memory is still 66.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 276.75ms. Allocated memory is still 153.1MB. Free memory was 108.9MB in the beginning and 91.3MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.17ms. Allocated memory is still 153.1MB. Free memory was 91.3MB in the beginning and 89.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.51ms. Allocated memory is still 153.1MB. Free memory was 89.5MB in the beginning and 87.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 573.02ms. Allocated memory is still 153.1MB. Free memory was 87.2MB in the beginning and 84.5MB in the end (delta: 2.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1473.38ms. Allocated memory was 153.1MB in the beginning and 205.5MB in the end (delta: 52.4MB). Free memory was 84.5MB in the beginning and 99.8MB in the end (delta: -15.3MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 86]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L38] unsigned int s, t, m, T, S; [L79] pthread_t t1, t2; VAL [S=0, T=0, m=0, s=0, t1={5:0}, t2={3:0}, t=0] [L81] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[s],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[t],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[m],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[T],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[S],IntegerLiteral[0U]]]]] [L81] s = __VERIFIER_nondet_uint() [L82] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[t],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[m],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[T],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[S],IntegerLiteral[0U]]]]] [L82] t = __VERIFIER_nondet_uint() [L83] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[m],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[T],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[S],IntegerLiteral[0U]]]]] [L83] S = s VAL [S=0, T=0, m=0, s=0, t1={5:0}, t2={3:0}] [L84] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[m],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[T],IntegerLiteral[0U]]]]] [L84] T = t VAL [S=0, T=49, m=0, s=0, t1={5:0}, t2={3:0}, t=49] [L86] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[1U],IdentifierExpression[s]],BinaryExpression[COMPEQ,IdentifierExpression[m],IntegerLiteral[0U]]],BinaryExpression[COMPNEQ,IdentifierExpression[s],IntegerLiteral[0U]]]]] VAL [S=0, T=49, m=0, s=0, t1={5:0}, t2={3:0}, t=49] - UnprovableResult [Line: 41]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 48]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 50]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 51]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 53]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 75]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 72]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 82]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 83]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 84]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 89]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 95]: 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: 90]: 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. - UnprovableResult [Line: 89]: 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 5 procedures, 124 locations, 59 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: 1.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 270 IncrementalHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 12 mSDtfsCounter, 270 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 146 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 16:10:35,528 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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