./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-multiply-verify.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-more-multiply-verify.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 76401ed0 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-more-multiply-verify.wvr.c ./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-more-multiply-verify.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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-76401ed-m [2024-06-20 18:14:45,735 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-20 18:14:45,798 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-20 18:14:45,802 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-20 18:14:45,802 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-20 18:14:45,830 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-20 18:14:45,831 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-20 18:14:45,831 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-20 18:14:45,832 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-20 18:14:45,835 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-20 18:14:45,835 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-20 18:14:45,835 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-20 18:14:45,836 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-20 18:14:45,837 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-20 18:14:45,837 INFO L153 SettingsManager]: * Use SBE=true [2024-06-20 18:14:45,843 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-20 18:14:45,843 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-20 18:14:45,843 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-20 18:14:45,843 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-20 18:14:45,843 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-20 18:14:45,844 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-20 18:14:45,844 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-20 18:14:45,844 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-20 18:14:45,844 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-20 18:14:45,844 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-20 18:14:45,845 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-20 18:14:45,845 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-20 18:14:45,845 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-20 18:14:45,846 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-20 18:14:45,846 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-20 18:14:45,847 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-20 18:14:45,847 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-20 18:14:45,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 18:14:45,847 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-20 18:14:45,847 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-20 18:14:45,847 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-20 18:14:45,848 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-20 18:14:45,848 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-20 18:14:45,848 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-20 18:14:45,848 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-20 18:14:45,848 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-20 18:14:45,849 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-20 18:14:45,849 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-20 18:14:45,849 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-20 18:14:46,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-20 18:14:46,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-20 18:14:46,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-20 18:14:46,060 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-20 18:14:46,061 INFO L274 PluginConnector]: CDTParser initialized [2024-06-20 18:14:46,062 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-multiply-verify.wvr.c [2024-06-20 18:14:47,059 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-20 18:14:47,216 INFO L384 CDTParser]: Found 1 translation units. [2024-06-20 18:14:47,217 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-multiply-verify.wvr.c [2024-06-20 18:14:47,222 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52a2880a3/85dc4889f3494eee8b5e6d7ba5940936/FLAG945d32298 [2024-06-20 18:14:47,232 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52a2880a3/85dc4889f3494eee8b5e6d7ba5940936 [2024-06-20 18:14:47,234 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-20 18:14:47,236 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-20 18:14:47,238 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-more-multiply-verify.wvr.yml/witness.yml [2024-06-20 18:14:47,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-20 18:14:47,313 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-20 18:14:47,314 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-20 18:14:47,314 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-20 18:14:47,318 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-20 18:14:47,319 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 06:14:47" (1/2) ... [2024-06-20 18:14:47,320 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ff75085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:14:47, skipping insertion in model container [2024-06-20 18:14:47,320 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 06:14:47" (1/2) ... [2024-06-20 18:14:47,321 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5a912873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:14:47, skipping insertion in model container [2024-06-20 18:14:47,323 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:14:47" (2/2) ... [2024-06-20 18:14:47,323 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ff75085 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:14:47, skipping insertion in model container [2024-06-20 18:14:47,324 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:14:47" (2/2) ... [2024-06-20 18:14:47,324 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-20 18:14:47,340 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-20 18:14:47,342 INFO L97 edCorrectnessWitness]: Location invariant before [L104-L104] ! multithreaded || ((((((((((((((((((((((((((((((((2147483648LL + (long long )A) + (long long )n >= 0LL && (2147483648LL + (long long )A) + (long long )start >= 0LL) && (2147483648LL + (long long )A) + (long long )end >= 0LL) && (2147483648LL + (long long )B) + (long long )n >= 0LL) && (2147483648LL + (long long )B) + (long long )start >= 0LL) && (2147483648LL + (long long )B) + (long long )end >= 0LL) && (4294967296LL + (long long )n) + (long long )start >= 0LL) && (4294967296LL + (long long )end) + (long long )n >= 0LL) && (4294967296LL + (long long )end) + (long long )start >= 0LL) && (4294967295LL - (long long )A) + (long long )B >= 0LL) && (4294967295LL - (long long )n) + (long long )start >= 0LL) && (6442450943LL - (long long )A) + (long long )n >= 0LL) && (6442450943LL - (long long )A) + (long long )start >= 0LL) && (6442450943LL - (long long )A) + (long long )end >= 0LL) && (6442450943LL - (long long )B) + (long long )n >= 0LL) && (6442450943LL - (long long )B) + (long long )start >= 0LL) && (6442450943LL - (long long )B) + (long long )end >= 0LL) && (long long )A + (long long )B >= 0LL) && (2147483647LL + (long long )A) - (long long )n >= 0LL) && (2147483647LL + (long long )A) - (long long )start >= 0LL) && (2147483647LL + (long long )B) - (long long )n >= 0LL) && (2147483647LL + (long long )B) - (long long )start >= 0LL) && (4294967295LL + (long long )A) - (long long )B >= 0LL) && (4294967295LL + (long long )n) - (long long )start >= 0LL) && (4294967295LL + (long long )end) - (long long )n >= 0LL) && (4294967294LL - (long long )n) - (long long )start >= 0LL) && (6442450942LL - (long long )A) - (long long )n >= 0LL) && (6442450942LL - (long long )A) - (long long )start >= 0LL) && (6442450942LL - (long long )B) - (long long )n >= 0LL) && (6442450942LL - (long long )B) - (long long )start >= 0LL) && (8589934590LL - (long long )A) - (long long )B >= 0LL) && (long long )end - (long long )start >= 0LL) [2024-06-20 18:14:47,342 INFO L97 edCorrectnessWitness]: Location invariant before [L103-L103] ! multithreaded || ((((((((((((((((((((((((((((((((2147483648LL + (long long )A) + (long long )n >= 0LL && (2147483648LL + (long long )A) + (long long )start >= 0LL) && (2147483648LL + (long long )A) + (long long )end >= 0LL) && (2147483648LL + (long long )B) + (long long )n >= 0LL) && (2147483648LL + (long long )B) + (long long )start >= 0LL) && (2147483648LL + (long long )B) + (long long )end >= 0LL) && (4294967296LL + (long long )n) + (long long )start >= 0LL) && (4294967296LL + (long long )end) + (long long )n >= 0LL) && (4294967296LL + (long long )end) + (long long )start >= 0LL) && (4294967295LL - (long long )A) + (long long )B >= 0LL) && (4294967295LL - (long long )n) + (long long )start >= 0LL) && (6442450943LL - (long long )A) + (long long )n >= 0LL) && (6442450943LL - (long long )A) + (long long )start >= 0LL) && (6442450943LL - (long long )A) + (long long )end >= 0LL) && (6442450943LL - (long long )B) + (long long )n >= 0LL) && (6442450943LL - (long long )B) + (long long )start >= 0LL) && (6442450943LL - (long long )B) + (long long )end >= 0LL) && (long long )A + (long long )B >= 0LL) && (2147483647LL + (long long )A) - (long long )n >= 0LL) && (2147483647LL + (long long )A) - (long long )start >= 0LL) && (2147483647LL + (long long )B) - (long long )n >= 0LL) && (2147483647LL + (long long )B) - (long long )start >= 0LL) && (4294967295LL + (long long )A) - (long long )B >= 0LL) && (4294967295LL + (long long )n) - (long long )start >= 0LL) && (4294967295LL + (long long )end) - (long long )n >= 0LL) && (4294967294LL - (long long )n) - (long long )start >= 0LL) && (6442450942LL - (long long )A) - (long long )n >= 0LL) && (6442450942LL - (long long )A) - (long long )start >= 0LL) && (6442450942LL - (long long )B) - (long long )n >= 0LL) && (6442450942LL - (long long )B) - (long long )start >= 0LL) && (8589934590LL - (long long )A) - (long long )B >= 0LL) && (long long )end - (long long )start >= 0LL) [2024-06-20 18:14:47,342 INFO L97 edCorrectnessWitness]: Location invariant before [L105-L105] ! multithreaded || ((((((((((((((((((((((((((((((((2147483648LL + (long long )A) + (long long )n >= 0LL && (2147483648LL + (long long )A) + (long long )start >= 0LL) && (2147483648LL + (long long )A) + (long long )end >= 0LL) && (2147483648LL + (long long )B) + (long long )n >= 0LL) && (2147483648LL + (long long )B) + (long long )start >= 0LL) && (2147483648LL + (long long )B) + (long long )end >= 0LL) && (4294967296LL + (long long )n) + (long long )start >= 0LL) && (4294967296LL + (long long )end) + (long long )n >= 0LL) && (4294967296LL + (long long )end) + (long long )start >= 0LL) && (4294967295LL - (long long )A) + (long long )B >= 0LL) && (4294967295LL - (long long )n) + (long long )start >= 0LL) && (6442450943LL - (long long )A) + (long long )n >= 0LL) && (6442450943LL - (long long )A) + (long long )start >= 0LL) && (6442450943LL - (long long )A) + (long long )end >= 0LL) && (6442450943LL - (long long )B) + (long long )n >= 0LL) && (6442450943LL - (long long )B) + (long long )start >= 0LL) && (6442450943LL - (long long )B) + (long long )end >= 0LL) && (long long )A + (long long )B >= 0LL) && (2147483647LL + (long long )A) - (long long )n >= 0LL) && (2147483647LL + (long long )A) - (long long )start >= 0LL) && (2147483647LL + (long long )B) - (long long )n >= 0LL) && (2147483647LL + (long long )B) - (long long )start >= 0LL) && (4294967295LL + (long long )A) - (long long )B >= 0LL) && (4294967295LL + (long long )n) - (long long )start >= 0LL) && (4294967295LL + (long long )end) - (long long )n >= 0LL) && (4294967294LL - (long long )n) - (long long )start >= 0LL) && (6442450942LL - (long long )A) - (long long )n >= 0LL) && (6442450942LL - (long long )A) - (long long )start >= 0LL) && (6442450942LL - (long long )B) - (long long )n >= 0LL) && (6442450942LL - (long long )B) - (long long )start >= 0LL) && (8589934590LL - (long long )A) - (long long )B >= 0LL) && (long long )end - (long long )start >= 0LL) [2024-06-20 18:14:47,342 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-20 18:14:47,342 INFO L106 edCorrectnessWitness]: ghost_update [L102-L102] multithreaded = 1; [2024-06-20 18:14:47,362 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-20 18:14:47,520 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 18:14:47,526 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-20 18:14:47,612 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 18:14:47,632 INFO L206 MainTranslator]: Completed translation [2024-06-20 18:14:47,636 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:14:47 WrapperNode [2024-06-20 18:14:47,636 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-20 18:14:47,637 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-20 18:14:47,638 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-20 18:14:47,638 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-20 18:14:47,644 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 20.06 06:14:47" (1/1) ... [2024-06-20 18:14:47,659 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 20.06 06:14:47" (1/1) ... [2024-06-20 18:14:47,693 INFO L138 Inliner]: procedures = 25, calls = 36, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 179 [2024-06-20 18:14:47,694 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-20 18:14:47,695 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-20 18:14:47,695 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-20 18:14:47,695 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-20 18:14:47,703 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:14:47" (1/1) ... [2024-06-20 18:14:47,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:14:47" (1/1) ... [2024-06-20 18:14:47,706 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:14:47" (1/1) ... [2024-06-20 18:14:47,722 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-06-20 18:14:47,722 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:14:47" (1/1) ... [2024-06-20 18:14:47,722 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:14:47" (1/1) ... [2024-06-20 18:14:47,729 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:14:47" (1/1) ... [2024-06-20 18:14:47,731 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:14:47" (1/1) ... [2024-06-20 18:14:47,733 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:14:47" (1/1) ... [2024-06-20 18:14:47,735 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:14:47" (1/1) ... [2024-06-20 18:14:47,738 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-20 18:14:47,738 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-20 18:14:47,738 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-20 18:14:47,739 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-20 18:14:47,739 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:14:47" (1/1) ... [2024-06-20 18:14:47,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 18:14:47,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-20 18:14:47,770 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) [2024-06-20 18:14:47,775 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 [2024-06-20 18:14:47,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-20 18:14:47,823 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-20 18:14:47,823 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-20 18:14:47,823 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-20 18:14:47,823 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-20 18:14:47,823 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-20 18:14:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-20 18:14:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-20 18:14:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-20 18:14:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-20 18:14:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-20 18:14:47,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-20 18:14:47,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-20 18:14:47,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-20 18:14:47,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-20 18:14:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-20 18:14:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-20 18:14:47,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-20 18:14:47,829 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-20 18:14:47,929 INFO L244 CfgBuilder]: Building ICFG [2024-06-20 18:14:47,931 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-20 18:14:48,314 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-20 18:14:48,314 INFO L293 CfgBuilder]: Performing block encoding [2024-06-20 18:14:48,486 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-20 18:14:48,486 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-06-20 18:14:48,486 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 06:14:48 BoogieIcfgContainer [2024-06-20 18:14:48,487 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-20 18:14:48,489 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-20 18:14:48,489 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-20 18:14:48,491 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-20 18:14:48,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.06 06:14:47" (1/4) ... [2024-06-20 18:14:48,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be22cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 06:14:48, skipping insertion in model container [2024-06-20 18:14:48,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:14:47" (2/4) ... [2024-06-20 18:14:48,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be22cdc and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.06 06:14:48, skipping insertion in model container [2024-06-20 18:14:48,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:14:47" (3/4) ... [2024-06-20 18:14:48,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be22cdc and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.06 06:14:48, skipping insertion in model container [2024-06-20 18:14:48,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 06:14:48" (4/4) ... [2024-06-20 18:14:48,494 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-multiply-verify.wvr.c [2024-06-20 18:14:48,507 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-20 18:14:48,507 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-20 18:14:48,507 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-20 18:14:48,548 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-06-20 18:14:48,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 40 transitions, 101 flow [2024-06-20 18:14:48,601 INFO L124 PetriNetUnfolderBase]: 3/37 cut-off events. [2024-06-20 18:14:48,601 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-20 18:14:48,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 37 events. 3/37 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 57 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2024-06-20 18:14:48,606 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 40 transitions, 101 flow [2024-06-20 18:14:48,609 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 34 transitions, 80 flow [2024-06-20 18:14:48,622 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-20 18:14:48,629 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;@4344521e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-20 18:14:48,629 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-20 18:14:48,634 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-20 18:14:48,634 INFO L124 PetriNetUnfolderBase]: 1/7 cut-off events. [2024-06-20 18:14:48,634 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-20 18:14:48,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:14:48,635 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-20 18:14:48,636 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:14:48,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:14:48,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1898309848, now seen corresponding path program 1 times [2024-06-20 18:14:48,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:14:48,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221189004] [2024-06-20 18:14:48,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:14:48,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:14:48,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:14:49,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:14:49,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:14:49,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221189004] [2024-06-20 18:14:49,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221189004] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:14:49,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:14:49,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-20 18:14:49,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700844924] [2024-06-20 18:14:49,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:14:49,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-20 18:14:49,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:14:49,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-20 18:14:49,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-20 18:14:49,375 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 40 [2024-06-20 18:14:49,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 34 transitions, 80 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-06-20 18:14:49,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:14:49,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 40 [2024-06-20 18:14:49,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:14:49,650 INFO L124 PetriNetUnfolderBase]: 863/1391 cut-off events. [2024-06-20 18:14:49,650 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2024-06-20 18:14:49,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2780 conditions, 1391 events. 863/1391 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 6036 event pairs, 692 based on Foata normal form. 51/1384 useless extension candidates. Maximal degree in co-relation 2322. Up to 1135 conditions per place. [2024-06-20 18:14:49,661 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 25 selfloop transitions, 2 changer transitions 16/50 dead transitions. [2024-06-20 18:14:49,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 50 transitions, 207 flow [2024-06-20 18:14:49,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-20 18:14:49,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-20 18:14:49,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 89 transitions. [2024-06-20 18:14:49,672 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.55625 [2024-06-20 18:14:49,673 INFO L175 Difference]: Start difference. First operand has 41 places, 34 transitions, 80 flow. Second operand 4 states and 89 transitions. [2024-06-20 18:14:49,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 50 transitions, 207 flow [2024-06-20 18:14:49,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 50 transitions, 197 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-20 18:14:49,680 INFO L231 Difference]: Finished difference. Result has 42 places, 34 transitions, 95 flow [2024-06-20 18:14:49,682 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=95, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2024-06-20 18:14:49,685 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2024-06-20 18:14:49,686 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 34 transitions, 95 flow [2024-06-20 18:14:49,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-06-20 18:14:49,686 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:14:49,686 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:14:49,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-20 18:14:49,686 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:14:49,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:14:49,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1245122588, now seen corresponding path program 1 times [2024-06-20 18:14:49,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:14:49,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837115426] [2024-06-20 18:14:49,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:14:49,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:14:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:14:49,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:14:49,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:14:49,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837115426] [2024-06-20 18:14:49,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837115426] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-20 18:14:49,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163423355] [2024-06-20 18:14:49,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:14:49,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-20 18:14:49,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-20 18:14:49,997 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-20 18:14:50,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-20 18:14:50,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:14:50,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 15 conjunts are in the unsatisfiable core [2024-06-20 18:14:50,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-20 18:14:50,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:14:50,182 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-20 18:14:50,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:14:50,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163423355] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-20 18:14:50,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-20 18:14:50,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2024-06-20 18:14:50,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592339436] [2024-06-20 18:14:50,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-20 18:14:50,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-20 18:14:50,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:14:50,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-20 18:14:50,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-06-20 18:14:50,436 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 40 [2024-06-20 18:14:50,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 95 flow. Second operand has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 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) [2024-06-20 18:14:50,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:14:50,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 40 [2024-06-20 18:14:50,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:14:50,639 INFO L124 PetriNetUnfolderBase]: 733/1259 cut-off events. [2024-06-20 18:14:50,639 INFO L125 PetriNetUnfolderBase]: For 256/256 co-relation queries the response was YES. [2024-06-20 18:14:50,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2707 conditions, 1259 events. 733/1259 cut-off events. For 256/256 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 5824 event pairs, 586 based on Foata normal form. 185/1418 useless extension candidates. Maximal degree in co-relation 2695. Up to 734 conditions per place. [2024-06-20 18:14:50,641 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 0 selfloop transitions, 0 changer transitions 51/51 dead transitions. [2024-06-20 18:14:50,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 51 transitions, 224 flow [2024-06-20 18:14:50,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-20 18:14:50,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-20 18:14:50,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 111 transitions. [2024-06-20 18:14:50,643 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4625 [2024-06-20 18:14:50,643 INFO L175 Difference]: Start difference. First operand has 42 places, 34 transitions, 95 flow. Second operand 6 states and 111 transitions. [2024-06-20 18:14:50,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 51 transitions, 224 flow [2024-06-20 18:14:50,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 51 transitions, 220 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-06-20 18:14:50,645 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2024-06-20 18:14:50,645 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2024-06-20 18:14:50,645 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 0 predicate places. [2024-06-20 18:14:50,646 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2024-06-20 18:14:50,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 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) [2024-06-20 18:14:50,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-20 18:14:50,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-20 18:14:50,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-20 18:14:50,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-20 18:14:50,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-20 18:14:50,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-20 18:14:50,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-06-20 18:14:50,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-20 18:14:50,862 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-06-20 18:14:50,864 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-20 18:14:50,864 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-20 18:14:50,867 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-20 18:14:50,868 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-20 18:14:50,868 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.06 06:14:50 BasicIcfg [2024-06-20 18:14:50,868 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-20 18:14:50,869 INFO L158 Benchmark]: Toolchain (without parser) took 3555.48ms. Allocated memory was 163.6MB in the beginning and 205.5MB in the end (delta: 41.9MB). Free memory was 107.1MB in the beginning and 141.9MB in the end (delta: -34.8MB). Peak memory consumption was 103.7MB. Max. memory is 16.1GB. [2024-06-20 18:14:50,869 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 163.6MB. Free memory is still 129.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 18:14:50,869 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 163.6MB. Free memory is still 110.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 18:14:50,869 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.56ms. Allocated memory is still 163.6MB. Free memory was 106.9MB in the beginning and 89.3MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-06-20 18:14:50,870 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.52ms. Allocated memory is still 163.6MB. Free memory was 89.3MB in the beginning and 85.7MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-20 18:14:50,870 INFO L158 Benchmark]: Boogie Preprocessor took 43.25ms. Allocated memory is still 163.6MB. Free memory was 85.7MB in the beginning and 82.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-20 18:14:50,870 INFO L158 Benchmark]: RCFGBuilder took 748.25ms. Allocated memory is still 163.6MB. Free memory was 82.7MB in the beginning and 102.7MB in the end (delta: -20.0MB). Peak memory consumption was 46.2MB. Max. memory is 16.1GB. [2024-06-20 18:14:50,871 INFO L158 Benchmark]: TraceAbstraction took 2379.74ms. Allocated memory was 163.6MB in the beginning and 205.5MB in the end (delta: 41.9MB). Free memory was 101.8MB in the beginning and 141.9MB in the end (delta: -40.1MB). Peak memory consumption was 95.3MB. Max. memory is 16.1GB. [2024-06-20 18:14:50,872 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 163.6MB. Free memory is still 129.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.14ms. Allocated memory is still 163.6MB. Free memory is still 110.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.56ms. Allocated memory is still 163.6MB. Free memory was 106.9MB in the beginning and 89.3MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.52ms. Allocated memory is still 163.6MB. Free memory was 89.3MB in the beginning and 85.7MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.25ms. Allocated memory is still 163.6MB. Free memory was 85.7MB in the beginning and 82.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 748.25ms. Allocated memory is still 163.6MB. Free memory was 82.7MB in the beginning and 102.7MB in the end (delta: -20.0MB). Peak memory consumption was 46.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2379.74ms. Allocated memory was 163.6MB in the beginning and 205.5MB in the end (delta: 41.9MB). Free memory was 101.8MB in the beginning and 141.9MB in the end (delta: -40.1MB). Peak memory consumption was 95.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 103]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 104]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 105]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 59 locations, 6 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: 2.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 84 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 75 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 221 IncrementalHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 4 mSDtfsCounter, 221 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=1, InterpolantAutomatonStates: 10, 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, 1.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 460 SizeOfPredicates, 3 NumberOfNonLiveVariables, 88 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-20 18:14:50,912 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 Result: TRUE