./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-horseshoe.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-horseshoe.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version bcb38a6f 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-horseshoe.wvr.c ./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-horseshoe.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-bcb38a6-m [2024-06-03 21:02:05,693 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-03 21:02:05,754 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-03 21:02:05,758 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-03 21:02:05,759 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-03 21:02:05,785 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-03 21:02:05,785 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-03 21:02:05,785 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-03 21:02:05,786 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-03 21:02:05,789 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-03 21:02:05,789 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-03 21:02:05,790 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-03 21:02:05,790 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-03 21:02:05,791 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-03 21:02:05,792 INFO L153 SettingsManager]: * Use SBE=true [2024-06-03 21:02:05,792 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-03 21:02:05,792 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-03 21:02:05,792 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-03 21:02:05,792 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-03 21:02:05,793 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-03 21:02:05,793 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-03 21:02:05,793 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-03 21:02:05,793 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-03 21:02:05,794 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-03 21:02:05,794 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-03 21:02:05,794 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-03 21:02:05,794 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-03 21:02:05,794 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-03 21:02:05,795 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-03 21:02:05,795 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-03 21:02:05,796 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-03 21:02:05,796 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-03 21:02:05,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 21:02:05,796 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-03 21:02:05,796 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-03 21:02:05,797 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-03 21:02:05,797 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-03 21:02:05,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-03 21:02:05,797 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-03 21:02:05,797 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-03 21:02:05,797 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-03 21:02:05,798 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-03 21:02:05,798 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-03 21:02:05,798 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-03 21:02:06,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-03 21:02:06,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-03 21:02:06,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-03 21:02:06,052 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-03 21:02:06,052 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-03 21:02:06,053 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-horseshoe.wvr.yml/witness.yml [2024-06-03 21:02:06,123 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-03 21:02:06,123 INFO L274 PluginConnector]: CDTParser initialized [2024-06-03 21:02:06,125 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-horseshoe.wvr.c [2024-06-03 21:02:07,111 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-03 21:02:07,283 INFO L384 CDTParser]: Found 1 translation units. [2024-06-03 21:02:07,284 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-horseshoe.wvr.c [2024-06-03 21:02:07,291 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd2c481d5/a58726eddf2b4bb8af79ae65188e3fc6/FLAG6dea7ae07 [2024-06-03 21:02:07,305 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd2c481d5/a58726eddf2b4bb8af79ae65188e3fc6 [2024-06-03 21:02:07,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-03 21:02:07,306 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-03 21:02:07,309 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-03 21:02:07,309 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-03 21:02:07,313 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-03 21:02:07,313 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 09:02:06" (1/2) ... [2024-06-03 21:02:07,314 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b3f8a0e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:02:07, skipping insertion in model container [2024-06-03 21:02:07,314 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 09:02:06" (1/2) ... [2024-06-03 21:02:07,316 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@34c63914 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:02:07, skipping insertion in model container [2024-06-03 21:02:07,317 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 09:02:07" (2/2) ... [2024-06-03 21:02:07,318 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b3f8a0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:02:07, skipping insertion in model container [2024-06-03 21:02:07,318 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 09:02:07" (2/2) ... [2024-06-03 21:02:07,318 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-03 21:02:07,334 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-03 21:02:07,335 INFO L97 edCorrectnessWitness]: Location invariant before [L121-L121] ! multithreaded || (((((((((((((((((((((((((((((((((4294967296LL + (long long )q1_front) + (long long )q2_front >= 0LL && (4294967296LL + (long long )q1_front) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )q2_back) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )n1) + (long long )q1_front >= 0LL) && (4294967296LL + (long long )n1) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )n1) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )n1) + (long long )n2 >= 0LL) && (4294967296LL + (long long )n2) + (long long )q1_front >= 0LL) && (4294967296LL + (long long )n2) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )n2) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )N) + (long long )q1_front >= 0LL) && (4294967296LL + (long long )N) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )N) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )N) + (long long )n1 >= 0LL) && (4294967296LL + (long long )N) + (long long )n2 >= 0LL) && (4294967295LL - (long long )n1) + (long long )q1_front >= 0LL) && (4294967295LL - (long long )n1) + (long long )q2_front >= 0LL) && (4294967295LL - (long long )n1) + (long long )q2_back >= 0LL) && (4294967295LL - (long long )n1) + (long long )n2 >= 0LL) && (4294967295LL - (long long )n2) + (long long )q1_front >= 0LL) && (4294967295LL - (long long )n2) + (long long )q2_front >= 0LL) && (4294967295LL - (long long )n2) + (long long )q2_back >= 0LL) && (4294967295LL - (long long )N) + (long long )q1_front >= 0LL) && (4294967295LL - (long long )N) + (long long )q2_front >= 0LL) && (4294967295LL - (long long )N) + (long long )q2_back >= 0LL) && (4294967295LL - (long long )N) + (long long )n1 >= 0LL) && (4294967295LL - (long long )N) + (long long )n2 >= 0LL) && (4294967295LL + (long long )n1) - (long long )n2 >= 0LL) && (4294967295LL + (long long )N) - (long long )n1 >= 0LL) && (4294967295LL + (long long )N) - (long long )n2 >= 0LL) && (4294967294LL - (long long )n1) - (long long )n2 >= 0LL) && (4294967294LL - (long long )N) - (long long )n1 >= 0LL) && (4294967294LL - (long long )N) - (long long )n2 >= 0LL) [2024-06-03 21:02:07,335 INFO L97 edCorrectnessWitness]: Location invariant before [L120-L120] ! multithreaded || (((((((((((((((((((((((((((((((((4294967296LL + (long long )q1_front) + (long long )q2_front >= 0LL && (4294967296LL + (long long )q1_front) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )q2_back) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )n1) + (long long )q1_front >= 0LL) && (4294967296LL + (long long )n1) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )n1) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )n1) + (long long )n2 >= 0LL) && (4294967296LL + (long long )n2) + (long long )q1_front >= 0LL) && (4294967296LL + (long long )n2) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )n2) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )N) + (long long )q1_front >= 0LL) && (4294967296LL + (long long )N) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )N) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )N) + (long long )n1 >= 0LL) && (4294967296LL + (long long )N) + (long long )n2 >= 0LL) && (4294967295LL - (long long )n1) + (long long )q1_front >= 0LL) && (4294967295LL - (long long )n1) + (long long )q2_front >= 0LL) && (4294967295LL - (long long )n1) + (long long )q2_back >= 0LL) && (4294967295LL - (long long )n1) + (long long )n2 >= 0LL) && (4294967295LL - (long long )n2) + (long long )q1_front >= 0LL) && (4294967295LL - (long long )n2) + (long long )q2_front >= 0LL) && (4294967295LL - (long long )n2) + (long long )q2_back >= 0LL) && (4294967295LL - (long long )N) + (long long )q1_front >= 0LL) && (4294967295LL - (long long )N) + (long long )q2_front >= 0LL) && (4294967295LL - (long long )N) + (long long )q2_back >= 0LL) && (4294967295LL - (long long )N) + (long long )n1 >= 0LL) && (4294967295LL - (long long )N) + (long long )n2 >= 0LL) && (4294967295LL + (long long )n1) - (long long )n2 >= 0LL) && (4294967295LL + (long long )N) - (long long )n1 >= 0LL) && (4294967295LL + (long long )N) - (long long )n2 >= 0LL) && (4294967294LL - (long long )n1) - (long long )n2 >= 0LL) && (4294967294LL - (long long )N) - (long long )n1 >= 0LL) && (4294967294LL - (long long )N) - (long long )n2 >= 0LL) [2024-06-03 21:02:07,335 INFO L97 edCorrectnessWitness]: Location invariant before [L122-L122] ! multithreaded || (((((((((((((((((((((((((((((((((4294967296LL + (long long )q1_front) + (long long )q2_front >= 0LL && (4294967296LL + (long long )q1_front) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )q2_back) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )n1) + (long long )q1_front >= 0LL) && (4294967296LL + (long long )n1) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )n1) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )n1) + (long long )n2 >= 0LL) && (4294967296LL + (long long )n2) + (long long )q1_front >= 0LL) && (4294967296LL + (long long )n2) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )n2) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )N) + (long long )q1_front >= 0LL) && (4294967296LL + (long long )N) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )N) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )N) + (long long )n1 >= 0LL) && (4294967296LL + (long long )N) + (long long )n2 >= 0LL) && (4294967295LL - (long long )n1) + (long long )q1_front >= 0LL) && (4294967295LL - (long long )n1) + (long long )q2_front >= 0LL) && (4294967295LL - (long long )n1) + (long long )q2_back >= 0LL) && (4294967295LL - (long long )n1) + (long long )n2 >= 0LL) && (4294967295LL - (long long )n2) + (long long )q1_front >= 0LL) && (4294967295LL - (long long )n2) + (long long )q2_front >= 0LL) && (4294967295LL - (long long )n2) + (long long )q2_back >= 0LL) && (4294967295LL - (long long )N) + (long long )q1_front >= 0LL) && (4294967295LL - (long long )N) + (long long )q2_front >= 0LL) && (4294967295LL - (long long )N) + (long long )q2_back >= 0LL) && (4294967295LL - (long long )N) + (long long )n1 >= 0LL) && (4294967295LL - (long long )N) + (long long )n2 >= 0LL) && (4294967295LL + (long long )n1) - (long long )n2 >= 0LL) && (4294967295LL + (long long )N) - (long long )n1 >= 0LL) && (4294967295LL + (long long )N) - (long long )n2 >= 0LL) && (4294967294LL - (long long )n1) - (long long )n2 >= 0LL) && (4294967294LL - (long long )N) - (long long )n1 >= 0LL) && (4294967294LL - (long long )N) - (long long )n2 >= 0LL) [2024-06-03 21:02:07,335 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-03 21:02:07,336 INFO L106 edCorrectnessWitness]: ghost_update [L119-L119] multithreaded = 1; [2024-06-03 21:02:07,354 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-03 21:02:07,559 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 21:02:07,568 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-03 21:02:07,660 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 21:02:07,672 INFO L206 MainTranslator]: Completed translation [2024-06-03 21:02:07,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:02:07 WrapperNode [2024-06-03 21:02:07,674 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-03 21:02:07,675 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-03 21:02:07,675 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-03 21:02:07,675 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-03 21:02:07,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:02:07" (1/1) ... [2024-06-03 21:02:07,695 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:02:07" (1/1) ... [2024-06-03 21:02:07,737 INFO L138 Inliner]: procedures = 24, calls = 41, calls flagged for inlining = 17, calls inlined = 19, statements flattened = 244 [2024-06-03 21:02:07,739 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-03 21:02:07,740 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-03 21:02:07,740 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-03 21:02:07,740 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-03 21:02:07,748 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:02:07" (1/1) ... [2024-06-03 21:02:07,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:02:07" (1/1) ... [2024-06-03 21:02:07,757 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:02:07" (1/1) ... [2024-06-03 21:02:07,773 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-06-03 21:02:07,832 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:02:07" (1/1) ... [2024-06-03 21:02:07,843 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:02:07" (1/1) ... [2024-06-03 21:02:07,849 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:02:07" (1/1) ... [2024-06-03 21:02:07,861 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:02:07" (1/1) ... [2024-06-03 21:02:07,862 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:02:07" (1/1) ... [2024-06-03 21:02:07,863 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:02:07" (1/1) ... [2024-06-03 21:02:07,865 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-03 21:02:07,866 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-03 21:02:07,866 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-03 21:02:07,866 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-03 21:02:07,866 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:02:07" (1/1) ... [2024-06-03 21:02:07,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 21:02:07,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-03 21:02:07,896 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) [2024-06-03 21:02:07,915 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 [2024-06-03 21:02:07,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-03 21:02:07,954 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-03 21:02:07,954 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-03 21:02:07,954 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-03 21:02:07,955 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-03 21:02:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-03 21:02:07,955 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-03 21:02:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-03 21:02:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-03 21:02:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-03 21:02:07,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-03 21:02:07,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-03 21:02:07,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-03 21:02:07,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-03 21:02:07,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-03 21:02:07,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-03 21:02:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-03 21:02:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-03 21:02:07,961 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-03 21:02:08,062 INFO L244 CfgBuilder]: Building ICFG [2024-06-03 21:02:08,063 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-03 21:02:08,440 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-03 21:02:08,440 INFO L293 CfgBuilder]: Performing block encoding [2024-06-03 21:02:08,610 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-03 21:02:08,610 INFO L320 CfgBuilder]: Removed 5 assume(true) statements. [2024-06-03 21:02:08,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 09:02:08 BoogieIcfgContainer [2024-06-03 21:02:08,611 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-03 21:02:08,612 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-03 21:02:08,612 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-03 21:02:08,614 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-03 21:02:08,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 09:02:06" (1/4) ... [2024-06-03 21:02:08,615 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea9d74a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 03.06 09:02:08, skipping insertion in model container [2024-06-03 21:02:08,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.06 09:02:07" (2/4) ... [2024-06-03 21:02:08,616 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea9d74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.06 09:02:08, skipping insertion in model container [2024-06-03 21:02:08,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:02:07" (3/4) ... [2024-06-03 21:02:08,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea9d74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.06 09:02:08, skipping insertion in model container [2024-06-03 21:02:08,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 09:02:08" (4/4) ... [2024-06-03 21:02:08,618 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-horseshoe.wvr.c [2024-06-03 21:02:08,631 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-03 21:02:08,632 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-03 21:02:08,632 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-03 21:02:08,674 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-06-03 21:02:08,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 50 transitions, 121 flow [2024-06-03 21:02:08,739 INFO L124 PetriNetUnfolderBase]: 7/47 cut-off events. [2024-06-03 21:02:08,739 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-03 21:02:08,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 47 events. 7/47 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 78 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2024-06-03 21:02:08,743 INFO L82 GeneralOperation]: Start removeDead. Operand has 53 places, 50 transitions, 121 flow [2024-06-03 21:02:08,745 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 45 transitions, 105 flow [2024-06-03 21:02:08,754 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-03 21:02:08,758 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;@4f65eebd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-03 21:02:08,759 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-03 21:02:08,766 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-03 21:02:08,766 INFO L124 PetriNetUnfolderBase]: 2/10 cut-off events. [2024-06-03 21:02:08,766 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 21:02:08,766 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:02:08,767 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:02:08,767 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)] === [2024-06-03 21:02:08,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:02:08,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1332821590, now seen corresponding path program 1 times [2024-06-03 21:02:08,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:02:08,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784618029] [2024-06-03 21:02:08,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:02:08,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:02:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:02:09,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 21:02:09,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:02:09,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784618029] [2024-06-03 21:02:09,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784618029] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:02:09,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:02:09,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-03 21:02:09,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500561517] [2024-06-03 21:02:09,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:02:10,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-03 21:02:10,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:02:10,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-03 21:02:10,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-03 21:02:10,045 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 50 [2024-06-03 21:02:10,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 105 flow. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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) [2024-06-03 21:02:10,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:02:10,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 50 [2024-06-03 21:02:10,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:02:10,849 INFO L124 PetriNetUnfolderBase]: 1358/2533 cut-off events. [2024-06-03 21:02:10,849 INFO L125 PetriNetUnfolderBase]: For 108/108 co-relation queries the response was YES. [2024-06-03 21:02:10,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4627 conditions, 2533 events. 1358/2533 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 16996 event pairs, 1005 based on Foata normal form. 410/2580 useless extension candidates. Maximal degree in co-relation 2581. Up to 1148 conditions per place. [2024-06-03 21:02:10,861 INFO L140 encePairwiseOnDemand]: 40/50 looper letters, 28 selfloop transitions, 5 changer transitions 23/69 dead transitions. [2024-06-03 21:02:10,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 69 transitions, 280 flow [2024-06-03 21:02:10,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-03 21:02:10,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-03 21:02:10,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 159 transitions. [2024-06-03 21:02:10,871 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.53 [2024-06-03 21:02:10,872 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 105 flow. Second operand 6 states and 159 transitions. [2024-06-03 21:02:10,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 69 transitions, 280 flow [2024-06-03 21:02:10,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 69 transitions, 262 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-03 21:02:10,878 INFO L231 Difference]: Finished difference. Result has 51 places, 46 transitions, 128 flow [2024-06-03 21:02:10,880 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=128, PETRI_PLACES=51, PETRI_TRANSITIONS=46} [2024-06-03 21:02:10,882 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 3 predicate places. [2024-06-03 21:02:10,883 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 46 transitions, 128 flow [2024-06-03 21:02:10,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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) [2024-06-03 21:02:10,883 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:02:10,883 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:02:10,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-03 21:02:10,883 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)] === [2024-06-03 21:02:10,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:02:10,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1383908132, now seen corresponding path program 1 times [2024-06-03 21:02:10,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:02:10,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673463120] [2024-06-03 21:02:10,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:02:10,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:02:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:02:11,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 21:02:11,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:02:11,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673463120] [2024-06-03 21:02:11,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673463120] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-03 21:02:11,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127814020] [2024-06-03 21:02:11,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:02:11,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-03 21:02:11,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-03 21:02:11,470 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) [2024-06-03 21:02:11,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-03 21:02:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:02:11,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 19 conjunts are in the unsatisfiable core [2024-06-03 21:02:11,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-03 21:02:11,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 21:02:11,751 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-03 21:02:12,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 21:02:12,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127814020] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-03 21:02:12,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-03 21:02:12,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2024-06-03 21:02:12,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747784053] [2024-06-03 21:02:12,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-03 21:02:12,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-06-03 21:02:12,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:02:12,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-06-03 21:02:12,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-06-03 21:02:12,756 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 50 [2024-06-03 21:02:12,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 46 transitions, 128 flow. Second operand has 13 states, 13 states have (on average 18.0) internal successors, (234), 13 states have internal predecessors, (234), 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) [2024-06-03 21:02:12,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:02:12,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 50 [2024-06-03 21:02:12,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:02:13,676 INFO L124 PetriNetUnfolderBase]: 1906/3606 cut-off events. [2024-06-03 21:02:13,676 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2024-06-03 21:02:13,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6622 conditions, 3606 events. 1906/3606 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 25956 event pairs, 1405 based on Foata normal form. 204/3362 useless extension candidates. Maximal degree in co-relation 6591. Up to 1148 conditions per place. [2024-06-03 21:02:13,689 INFO L140 encePairwiseOnDemand]: 42/50 looper letters, 28 selfloop transitions, 10 changer transitions 47/98 dead transitions. [2024-06-03 21:02:13,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 98 transitions, 432 flow [2024-06-03 21:02:13,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-03 21:02:13,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-03 21:02:13,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 267 transitions. [2024-06-03 21:02:13,691 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48545454545454547 [2024-06-03 21:02:13,691 INFO L175 Difference]: Start difference. First operand has 51 places, 46 transitions, 128 flow. Second operand 11 states and 267 transitions. [2024-06-03 21:02:13,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 98 transitions, 432 flow [2024-06-03 21:02:13,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 98 transitions, 418 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-06-03 21:02:13,700 INFO L231 Difference]: Finished difference. Result has 65 places, 51 transitions, 190 flow [2024-06-03 21:02:13,701 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=190, PETRI_PLACES=65, PETRI_TRANSITIONS=51} [2024-06-03 21:02:13,701 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 17 predicate places. [2024-06-03 21:02:13,701 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 51 transitions, 190 flow [2024-06-03 21:02:13,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 18.0) internal successors, (234), 13 states have internal predecessors, (234), 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) [2024-06-03 21:02:13,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:02:13,702 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:02:13,732 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-06-03 21:02:13,918 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 [2024-06-03 21:02:13,918 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:02:13,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:02:13,919 INFO L85 PathProgramCache]: Analyzing trace with hash 2022900182, now seen corresponding path program 2 times [2024-06-03 21:02:13,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:02:13,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173994243] [2024-06-03 21:02:13,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:02:13,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:02:13,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:02:14,717 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 21:02:14,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:02:14,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173994243] [2024-06-03 21:02:14,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173994243] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-03 21:02:14,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71355221] [2024-06-03 21:02:14,718 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-06-03 21:02:14,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-03 21:02:14,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-03 21:02:14,729 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-03 21:02:14,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-06-03 21:02:14,787 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-06-03 21:02:14,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-06-03 21:02:14,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 10 conjunts are in the unsatisfiable core [2024-06-03 21:02:14,790 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-03 21:02:14,975 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-06-03 21:02:14,975 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-06-03 21:02:14,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71355221] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:02:14,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-06-03 21:02:14,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 10 [2024-06-03 21:02:14,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677545764] [2024-06-03 21:02:14,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:02:14,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-03 21:02:14,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:02:14,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-03 21:02:14,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-06-03 21:02:14,986 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 50 [2024-06-03 21:02:14,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 51 transitions, 190 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-06-03 21:02:14,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:02:14,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 50 [2024-06-03 21:02:14,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:02:15,090 INFO L124 PetriNetUnfolderBase]: 550/1081 cut-off events. [2024-06-03 21:02:15,090 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2024-06-03 21:02:15,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1977 conditions, 1081 events. 550/1081 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 6178 event pairs, 400 based on Foata normal form. 102/1041 useless extension candidates. Maximal degree in co-relation 1966. Up to 794 conditions per place. [2024-06-03 21:02:15,093 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2024-06-03 21:02:15,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 48 transitions, 242 flow [2024-06-03 21:02:15,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-03 21:02:15,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-03 21:02:15,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 78 transitions. [2024-06-03 21:02:15,094 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.52 [2024-06-03 21:02:15,094 INFO L175 Difference]: Start difference. First operand has 65 places, 51 transitions, 190 flow. Second operand 3 states and 78 transitions. [2024-06-03 21:02:15,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 48 transitions, 242 flow [2024-06-03 21:02:15,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 48 transitions, 212 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-06-03 21:02:15,095 INFO L231 Difference]: Finished difference. Result has 58 places, 0 transitions, 0 flow [2024-06-03 21:02:15,095 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=58, PETRI_TRANSITIONS=0} [2024-06-03 21:02:15,096 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 10 predicate places. [2024-06-03 21:02:15,096 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 0 transitions, 0 flow [2024-06-03 21:02:15,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-06-03 21:02:15,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-03 21:02:15,099 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-03 21:02:15,099 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-03 21:02:15,099 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-03 21:02:15,099 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-03 21:02:15,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-03 21:02:15,126 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-06-03 21:02:15,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-06-03 21:02:15,310 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2024-06-03 21:02:15,313 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-03 21:02:15,313 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-03 21:02:15,316 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-03 21:02:15,316 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-03 21:02:15,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.06 09:02:15 BasicIcfg [2024-06-03 21:02:15,317 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-03 21:02:15,318 INFO L158 Benchmark]: Toolchain (without parser) took 8011.39ms. Allocated memory was 127.9MB in the beginning and 260.0MB in the end (delta: 132.1MB). Free memory was 89.0MB in the beginning and 200.8MB in the end (delta: -111.9MB). Peak memory consumption was 154.5MB. Max. memory is 16.1GB. [2024-06-03 21:02:15,318 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 127.9MB. Free memory was 95.7MB in the beginning and 95.6MB in the end (delta: 81.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 21:02:15,318 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 127.9MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 21:02:15,319 INFO L158 Benchmark]: CACSL2BoogieTranslator took 365.41ms. Allocated memory is still 127.9MB. Free memory was 89.0MB in the beginning and 71.8MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-06-03 21:02:15,319 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.76ms. Allocated memory is still 127.9MB. Free memory was 71.5MB in the beginning and 68.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-03 21:02:15,319 INFO L158 Benchmark]: Boogie Preprocessor took 125.51ms. Allocated memory is still 127.9MB. Free memory was 68.7MB in the beginning and 98.8MB in the end (delta: -30.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-06-03 21:02:15,320 INFO L158 Benchmark]: RCFGBuilder took 745.05ms. Allocated memory was 127.9MB in the beginning and 165.7MB in the end (delta: 37.7MB). Free memory was 98.8MB in the beginning and 111.9MB in the end (delta: -13.1MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. [2024-06-03 21:02:15,320 INFO L158 Benchmark]: TraceAbstraction took 6705.05ms. Allocated memory was 165.7MB in the beginning and 260.0MB in the end (delta: 94.4MB). Free memory was 111.0MB in the beginning and 200.8MB in the end (delta: -89.8MB). Peak memory consumption was 138.0MB. Max. memory is 16.1GB. [2024-06-03 21:02:15,321 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 0.15ms. Allocated memory is still 127.9MB. Free memory was 95.7MB in the beginning and 95.6MB in the end (delta: 81.0kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 127.9MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 365.41ms. Allocated memory is still 127.9MB. Free memory was 89.0MB in the beginning and 71.8MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.76ms. Allocated memory is still 127.9MB. Free memory was 71.5MB in the beginning and 68.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 125.51ms. Allocated memory is still 127.9MB. Free memory was 68.7MB in the beginning and 98.8MB in the end (delta: -30.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 745.05ms. Allocated memory was 127.9MB in the beginning and 165.7MB in the end (delta: 37.7MB). Free memory was 98.8MB in the beginning and 111.9MB in the end (delta: -13.1MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. * TraceAbstraction took 6705.05ms. Allocated memory was 165.7MB in the beginning and 260.0MB in the end (delta: 94.4MB). Free memory was 111.0MB in the beginning and 200.8MB in the end (delta: -89.8MB). Peak memory consumption was 138.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 120]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 121]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 122]: 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, 69 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: 6.6s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 305 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 291 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 398 IncrementalHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 0 mSDtfsCounter, 398 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred in iteration=2, InterpolantAutomatonStates: 20, 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, 3.7s InterpolantComputationTime, 50 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 4739 SizeOfPredicates, 1 NumberOfNonLiveVariables, 247 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 10/23 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! [2024-06-03 21:02:15,349 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 Result: TRUE