./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-buffer-series.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-buffer-series.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-more-buffer-series.wvr.c ./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-more-buffer-series.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 [2024-06-04 18:18:07,533 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-04 18:18:07,583 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-04 18:18:07,587 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-04 18:18:07,587 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-04 18:18:07,601 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-04 18:18:07,601 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-04 18:18:07,601 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-04 18:18:07,602 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-04 18:18:07,602 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-04 18:18:07,602 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-04 18:18:07,603 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-04 18:18:07,603 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-04 18:18:07,603 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-04 18:18:07,604 INFO L153 SettingsManager]: * Use SBE=true [2024-06-04 18:18:07,604 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-04 18:18:07,604 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-04 18:18:07,605 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-04 18:18:07,605 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-04 18:18:07,605 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-04 18:18:07,605 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-04 18:18:07,606 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-04 18:18:07,606 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-04 18:18:07,607 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-04 18:18:07,607 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-04 18:18:07,607 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-04 18:18:07,607 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-04 18:18:07,608 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-04 18:18:07,608 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-04 18:18:07,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-04 18:18:07,609 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-04 18:18:07,609 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-04 18:18:07,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-04 18:18:07,610 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-04 18:18:07,610 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-04 18:18:07,610 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-04 18:18:07,610 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-04 18:18:07,611 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-04 18:18:07,611 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-04 18:18:07,611 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-04 18:18:07,611 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-04 18:18:07,618 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-04 18:18:07,619 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-04 18:18:07,619 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-04 18:18:07,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-04 18:18:07,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-04 18:18:07,879 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-04 18:18:07,880 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-04 18:18:07,880 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-04 18:18:07,881 INFO L431 ainManager$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-buffer-series.wvr.yml/witness.yml [2024-06-04 18:18:07,987 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-04 18:18:07,988 INFO L274 PluginConnector]: CDTParser initialized [2024-06-04 18:18:07,988 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-buffer-series.wvr.c [2024-06-04 18:18:09,153 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-04 18:18:09,313 INFO L384 CDTParser]: Found 1 translation units. [2024-06-04 18:18:09,318 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-series.wvr.c [2024-06-04 18:18:09,328 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfcd195ef/e6bcfb84e2b644a4b797ef56c30cb4dd/FLAG024c65855 [2024-06-04 18:18:09,342 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfcd195ef/e6bcfb84e2b644a4b797ef56c30cb4dd [2024-06-04 18:18:09,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-04 18:18:09,345 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-04 18:18:09,346 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-04 18:18:09,346 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-04 18:18:09,350 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-04 18:18:09,351 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 06:18:07" (1/2) ... [2024-06-04 18:18:09,352 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49c2cfdf and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 06:18:09, skipping insertion in model container [2024-06-04 18:18:09,352 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 06:18:07" (1/2) ... [2024-06-04 18:18:09,353 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@b923322 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 06:18:09, skipping insertion in model container [2024-06-04 18:18:09,354 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 06:18:09" (2/2) ... [2024-06-04 18:18:09,354 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49c2cfdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:18:09, skipping insertion in model container [2024-06-04 18:18:09,354 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 06:18:09" (2/2) ... [2024-06-04 18:18:09,355 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-04 18:18:09,381 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-04 18:18:09,382 INFO L97 edCorrectnessWitness]: Location invariant before [L147-L147] (((! multithreaded || 0 <= i) && (! multithreaded || 0 <= j)) && (! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )i) + (long long )q1_front >= 0LL && (2147483648LL + (long long )i) + (long long )q1_back >= 0LL) && (2147483648LL + (long long )i) + (long long )q2_front >= 0LL) && (2147483648LL + (long long )i) + (long long )q2_back >= 0LL) && (2147483648LL + (long long )i) + (long long )n1 >= 0LL) && (2147483648LL + (long long )i) + (long long )n2 >= 0LL) && (2147483648LL + (long long )j) + (long long )q1_front >= 0LL) && (2147483648LL + (long long )j) + (long long )q1_back >= 0LL) && (2147483648LL + (long long )j) + (long long )q2_front >= 0LL) && (2147483648LL + (long long )j) + (long long )q2_back >= 0LL) && (2147483648LL + (long long )j) + (long long )n1 >= 0LL) && (2147483648LL + (long long )j) + (long long )n2 >= 0LL) && (2147483648LL + (long long )N) + (long long )i >= 0LL) && (2147483648LL + (long long )N) + (long long )j >= 0LL) && (4294967296LL + (long long )q1_front) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )q1_front) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )q1_back) + (long long )q1_front >= 0LL) && (4294967296LL + (long long )q1_back) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )q1_back) + (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 )q1_back >= 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 )q1_back >= 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 )q1_back >= 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) && (2147483647LL - (long long )N) + (long long )i >= 0LL) && (2147483647LL - (long long )N) + (long long )j >= 0LL) && (4294967295LL - (long long )n1) + (long long )q1_front >= 0LL) && (4294967295LL - (long long )n1) + (long long )q1_back >= 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 )q1_back >= 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 )q1_back >= 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) && (long long )i + (long long )j >= 0LL) && (2147483647LL + (long long )i) - (long long )n1 >= 0LL) && (2147483647LL + (long long )i) - (long long )n2 >= 0LL) && (2147483647LL + (long long )j) - (long long )n1 >= 0LL) && (2147483647LL + (long long )j) - (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))) && (! multithreaded || (0 <= i && 0 <= j)) [2024-06-04 18:18:09,383 INFO L97 edCorrectnessWitness]: Location invariant before [L146-L146] (((! multithreaded || 0 <= i) && (! multithreaded || 0 <= j)) && (! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )i) + (long long )q1_front >= 0LL && (2147483648LL + (long long )i) + (long long )q1_back >= 0LL) && (2147483648LL + (long long )i) + (long long )q2_front >= 0LL) && (2147483648LL + (long long )i) + (long long )q2_back >= 0LL) && (2147483648LL + (long long )i) + (long long )n1 >= 0LL) && (2147483648LL + (long long )i) + (long long )n2 >= 0LL) && (2147483648LL + (long long )j) + (long long )q1_front >= 0LL) && (2147483648LL + (long long )j) + (long long )q1_back >= 0LL) && (2147483648LL + (long long )j) + (long long )q2_front >= 0LL) && (2147483648LL + (long long )j) + (long long )q2_back >= 0LL) && (2147483648LL + (long long )j) + (long long )n1 >= 0LL) && (2147483648LL + (long long )j) + (long long )n2 >= 0LL) && (2147483648LL + (long long )N) + (long long )i >= 0LL) && (2147483648LL + (long long )N) + (long long )j >= 0LL) && (4294967296LL + (long long )q1_front) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )q1_front) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )q1_back) + (long long )q1_front >= 0LL) && (4294967296LL + (long long )q1_back) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )q1_back) + (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 )q1_back >= 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 )q1_back >= 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 )q1_back >= 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) && (2147483647LL - (long long )N) + (long long )i >= 0LL) && (2147483647LL - (long long )N) + (long long )j >= 0LL) && (4294967295LL - (long long )n1) + (long long )q1_front >= 0LL) && (4294967295LL - (long long )n1) + (long long )q1_back >= 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 )q1_back >= 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 )q1_back >= 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) && (long long )i + (long long )j >= 0LL) && (2147483647LL + (long long )i) - (long long )n1 >= 0LL) && (2147483647LL + (long long )i) - (long long )n2 >= 0LL) && (2147483647LL + (long long )j) - (long long )n1 >= 0LL) && (2147483647LL + (long long )j) - (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))) && (! multithreaded || (0 <= i && 0 <= j)) [2024-06-04 18:18:09,383 INFO L97 edCorrectnessWitness]: Location invariant before [L149-L149] (((! multithreaded || 0 <= i) && (! multithreaded || 0 <= j)) && (! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )i) + (long long )q1_front >= 0LL && (2147483648LL + (long long )i) + (long long )q1_back >= 0LL) && (2147483648LL + (long long )i) + (long long )q2_front >= 0LL) && (2147483648LL + (long long )i) + (long long )q2_back >= 0LL) && (2147483648LL + (long long )i) + (long long )n1 >= 0LL) && (2147483648LL + (long long )i) + (long long )n2 >= 0LL) && (2147483648LL + (long long )j) + (long long )q1_front >= 0LL) && (2147483648LL + (long long )j) + (long long )q1_back >= 0LL) && (2147483648LL + (long long )j) + (long long )q2_front >= 0LL) && (2147483648LL + (long long )j) + (long long )q2_back >= 0LL) && (2147483648LL + (long long )j) + (long long )n1 >= 0LL) && (2147483648LL + (long long )j) + (long long )n2 >= 0LL) && (2147483648LL + (long long )N) + (long long )i >= 0LL) && (2147483648LL + (long long )N) + (long long )j >= 0LL) && (4294967296LL + (long long )q1_front) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )q1_front) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )q1_back) + (long long )q1_front >= 0LL) && (4294967296LL + (long long )q1_back) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )q1_back) + (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 )q1_back >= 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 )q1_back >= 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 )q1_back >= 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) && (2147483647LL - (long long )N) + (long long )i >= 0LL) && (2147483647LL - (long long )N) + (long long )j >= 0LL) && (4294967295LL - (long long )n1) + (long long )q1_front >= 0LL) && (4294967295LL - (long long )n1) + (long long )q1_back >= 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 )q1_back >= 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 )q1_back >= 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) && (long long )i + (long long )j >= 0LL) && (2147483647LL + (long long )i) - (long long )n1 >= 0LL) && (2147483647LL + (long long )i) - (long long )n2 >= 0LL) && (2147483647LL + (long long )j) - (long long )n1 >= 0LL) && (2147483647LL + (long long )j) - (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))) && (! multithreaded || (0 <= i && 0 <= j)) [2024-06-04 18:18:09,383 INFO L97 edCorrectnessWitness]: Location invariant before [L148-L148] (((! multithreaded || 0 <= i) && (! multithreaded || 0 <= j)) && (! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )i) + (long long )q1_front >= 0LL && (2147483648LL + (long long )i) + (long long )q1_back >= 0LL) && (2147483648LL + (long long )i) + (long long )q2_front >= 0LL) && (2147483648LL + (long long )i) + (long long )q2_back >= 0LL) && (2147483648LL + (long long )i) + (long long )n1 >= 0LL) && (2147483648LL + (long long )i) + (long long )n2 >= 0LL) && (2147483648LL + (long long )j) + (long long )q1_front >= 0LL) && (2147483648LL + (long long )j) + (long long )q1_back >= 0LL) && (2147483648LL + (long long )j) + (long long )q2_front >= 0LL) && (2147483648LL + (long long )j) + (long long )q2_back >= 0LL) && (2147483648LL + (long long )j) + (long long )n1 >= 0LL) && (2147483648LL + (long long )j) + (long long )n2 >= 0LL) && (2147483648LL + (long long )N) + (long long )i >= 0LL) && (2147483648LL + (long long )N) + (long long )j >= 0LL) && (4294967296LL + (long long )q1_front) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )q1_front) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )q1_back) + (long long )q1_front >= 0LL) && (4294967296LL + (long long )q1_back) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )q1_back) + (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 )q1_back >= 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 )q1_back >= 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 )q1_back >= 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) && (2147483647LL - (long long )N) + (long long )i >= 0LL) && (2147483647LL - (long long )N) + (long long )j >= 0LL) && (4294967295LL - (long long )n1) + (long long )q1_front >= 0LL) && (4294967295LL - (long long )n1) + (long long )q1_back >= 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 )q1_back >= 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 )q1_back >= 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) && (long long )i + (long long )j >= 0LL) && (2147483647LL + (long long )i) - (long long )n1 >= 0LL) && (2147483647LL + (long long )i) - (long long )n2 >= 0LL) && (2147483647LL + (long long )j) - (long long )n1 >= 0LL) && (2147483647LL + (long long )j) - (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))) && (! multithreaded || (0 <= i && 0 <= j)) [2024-06-04 18:18:09,383 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-04 18:18:09,384 INFO L106 edCorrectnessWitness]: ghost_update [L145-L145] multithreaded = 1; [2024-06-04 18:18:09,406 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-04 18:18:09,553 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-04 18:18:09,560 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-04 18:18:09,734 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-04 18:18:09,751 INFO L206 MainTranslator]: Completed translation [2024-06-04 18:18:09,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:18:09 WrapperNode [2024-06-04 18:18:09,755 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-04 18:18:09,756 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-04 18:18:09,756 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-04 18:18:09,757 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-04 18:18:09,762 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:18:09" (1/1) ... [2024-06-04 18:18:09,773 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:18:09" (1/1) ... [2024-06-04 18:18:09,832 INFO L138 Inliner]: procedures = 26, calls = 68, calls flagged for inlining = 23, calls inlined = 29, statements flattened = 349 [2024-06-04 18:18:09,833 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-04 18:18:09,834 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-04 18:18:09,834 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-04 18:18:09,834 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-04 18:18:09,848 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:18:09" (1/1) ... [2024-06-04 18:18:09,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:18:09" (1/1) ... [2024-06-04 18:18:09,860 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:18:09" (1/1) ... [2024-06-04 18:18:09,877 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-06-04 18:18:09,877 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:18:09" (1/1) ... [2024-06-04 18:18:09,877 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:18:09" (1/1) ... [2024-06-04 18:18:09,888 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:18:09" (1/1) ... [2024-06-04 18:18:09,894 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:18:09" (1/1) ... [2024-06-04 18:18:09,897 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:18:09" (1/1) ... [2024-06-04 18:18:09,899 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:18:09" (1/1) ... [2024-06-04 18:18:09,903 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-04 18:18:09,903 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-04 18:18:09,903 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-04 18:18:09,904 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-04 18:18:09,909 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:18:09" (1/1) ... [2024-06-04 18:18:09,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-04 18:18:09,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-04 18:18:09,963 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) [2024-06-04 18:18:09,981 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 [2024-06-04 18:18:09,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-04 18:18:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-04 18:18:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-04 18:18:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-04 18:18:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-04 18:18:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-04 18:18:09,999 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-04 18:18:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-04 18:18:10,000 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-04 18:18:10,000 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-04 18:18:10,000 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-04 18:18:10,000 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-06-04 18:18:10,000 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-06-04 18:18:10,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-04 18:18:10,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-04 18:18:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-04 18:18:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-04 18:18:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-04 18:18:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-04 18:18:10,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-04 18:18:10,005 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-04 18:18:10,129 INFO L244 CfgBuilder]: Building ICFG [2024-06-04 18:18:10,130 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-04 18:18:10,738 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-04 18:18:10,739 INFO L293 CfgBuilder]: Performing block encoding [2024-06-04 18:18:11,026 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-04 18:18:11,026 INFO L320 CfgBuilder]: Removed 7 assume(true) statements. [2024-06-04 18:18:11,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 06:18:11 BoogieIcfgContainer [2024-06-04 18:18:11,027 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-04 18:18:11,028 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-04 18:18:11,028 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-04 18:18:11,031 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-04 18:18:11,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 06:18:07" (1/4) ... [2024-06-04 18:18:11,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5899f6f7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 04.06 06:18:11, skipping insertion in model container [2024-06-04 18:18:11,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.06 06:18:09" (2/4) ... [2024-06-04 18:18:11,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5899f6f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.06 06:18:11, skipping insertion in model container [2024-06-04 18:18:11,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:18:09" (3/4) ... [2024-06-04 18:18:11,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5899f6f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.06 06:18:11, skipping insertion in model container [2024-06-04 18:18:11,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 06:18:11" (4/4) ... [2024-06-04 18:18:11,034 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-series.wvr.c [2024-06-04 18:18:11,050 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-04 18:18:11,050 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-06-04 18:18:11,050 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-04 18:18:11,121 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-06-04 18:18:11,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 60 transitions, 148 flow [2024-06-04 18:18:11,186 INFO L124 PetriNetUnfolderBase]: 7/56 cut-off events. [2024-06-04 18:18:11,186 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-06-04 18:18:11,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 56 events. 7/56 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 80 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2024-06-04 18:18:11,190 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 60 transitions, 148 flow [2024-06-04 18:18:11,193 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 54 transitions, 129 flow [2024-06-04 18:18:11,203 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-04 18:18:11,210 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;@86da8f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-04 18:18:11,210 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-06-04 18:18:11,216 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-04 18:18:11,216 INFO L124 PetriNetUnfolderBase]: 3/13 cut-off events. [2024-06-04 18:18:11,216 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-04 18:18:11,216 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 18:18:11,217 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 18:18:11,217 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-04 18:18:11,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 18:18:11,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1716988466, now seen corresponding path program 1 times [2024-06-04 18:18:11,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 18:18:11,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080848737] [2024-06-04 18:18:11,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 18:18:11,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 18:18:11,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 18:18:12,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 18:18:12,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 18:18:12,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080848737] [2024-06-04 18:18:12,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080848737] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 18:18:12,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 18:18:12,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-04 18:18:12,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981239317] [2024-06-04 18:18:12,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 18:18:12,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-04 18:18:12,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 18:18:12,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-04 18:18:12,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-04 18:18:12,816 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 60 [2024-06-04 18:18:12,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 54 transitions, 129 flow. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2024-06-04 18:18:12,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 18:18:12,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 60 [2024-06-04 18:18:12,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 18:18:13,552 INFO L124 PetriNetUnfolderBase]: 3170/4710 cut-off events. [2024-06-04 18:18:13,553 INFO L125 PetriNetUnfolderBase]: For 200/200 co-relation queries the response was YES. [2024-06-04 18:18:13,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8949 conditions, 4710 events. 3170/4710 cut-off events. For 200/200 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 26150 event pairs, 891 based on Foata normal form. 49/4400 useless extension candidates. Maximal degree in co-relation 6894. Up to 3791 conditions per place. [2024-06-04 18:18:13,595 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 57 selfloop transitions, 6 changer transitions 2/82 dead transitions. [2024-06-04 18:18:13,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 82 transitions, 336 flow [2024-06-04 18:18:13,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-04 18:18:13,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-04 18:18:13,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 176 transitions. [2024-06-04 18:18:13,612 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5866666666666667 [2024-06-04 18:18:13,614 INFO L175 Difference]: Start difference. First operand has 60 places, 54 transitions, 129 flow. Second operand 5 states and 176 transitions. [2024-06-04 18:18:13,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 82 transitions, 336 flow [2024-06-04 18:18:13,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 82 transitions, 310 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-06-04 18:18:13,622 INFO L231 Difference]: Finished difference. Result has 60 places, 59 transitions, 168 flow [2024-06-04 18:18:13,624 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=168, PETRI_PLACES=60, PETRI_TRANSITIONS=59} [2024-06-04 18:18:13,627 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 0 predicate places. [2024-06-04 18:18:13,627 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 59 transitions, 168 flow [2024-06-04 18:18:13,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2024-06-04 18:18:13,628 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 18:18:13,628 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 18:18:13,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-04 18:18:13,628 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-04 18:18:13,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 18:18:13,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1934118795, now seen corresponding path program 1 times [2024-06-04 18:18:13,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 18:18:13,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865575159] [2024-06-04 18:18:13,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 18:18:13,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 18:18:13,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 18:18:14,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 18:18:14,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 18:18:14,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865575159] [2024-06-04 18:18:14,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865575159] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-04 18:18:14,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312000446] [2024-06-04 18:18:14,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 18:18:14,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-04 18:18:14,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-04 18:18:14,908 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) [2024-06-04 18:18:14,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-04 18:18:15,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 18:18:15,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 24 conjunts are in the unsatisfiable core [2024-06-04 18:18:15,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-04 18:18:15,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 18:18:15,416 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-04 18:18:19,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 18:18:19,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312000446] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-04 18:18:19,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-04 18:18:19,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 13 [2024-06-04 18:18:19,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587577155] [2024-06-04 18:18:19,280 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-04 18:18:19,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-06-04 18:18:19,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 18:18:19,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-06-04 18:18:19,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-06-04 18:18:19,806 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 60 [2024-06-04 18:18:19,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 59 transitions, 168 flow. Second operand has 15 states, 15 states have (on average 23.0) internal successors, (345), 15 states have internal predecessors, (345), 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) [2024-06-04 18:18:19,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 18:18:19,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 60 [2024-06-04 18:18:19,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 18:18:21,609 INFO L124 PetriNetUnfolderBase]: 2693/4366 cut-off events. [2024-06-04 18:18:21,609 INFO L125 PetriNetUnfolderBase]: For 1281/1281 co-relation queries the response was YES. [2024-06-04 18:18:21,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9397 conditions, 4366 events. 2693/4366 cut-off events. For 1281/1281 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 28393 event pairs, 1443 based on Foata normal form. 436/4465 useless extension candidates. Maximal degree in co-relation 5129. Up to 2611 conditions per place. [2024-06-04 18:18:21,621 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 0 selfloop transitions, 0 changer transitions 111/111 dead transitions. [2024-06-04 18:18:21,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 111 transitions, 486 flow [2024-06-04 18:18:21,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 18:18:21,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 18:18:21,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 295 transitions. [2024-06-04 18:18:21,640 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5462962962962963 [2024-06-04 18:18:21,640 INFO L175 Difference]: Start difference. First operand has 60 places, 59 transitions, 168 flow. Second operand 9 states and 295 transitions. [2024-06-04 18:18:21,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 111 transitions, 486 flow [2024-06-04 18:18:21,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 111 transitions, 480 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-06-04 18:18:21,643 INFO L231 Difference]: Finished difference. Result has 63 places, 0 transitions, 0 flow [2024-06-04 18:18:21,643 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=63, PETRI_TRANSITIONS=0} [2024-06-04 18:18:21,644 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 3 predicate places. [2024-06-04 18:18:21,644 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 0 transitions, 0 flow [2024-06-04 18:18:21,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 23.0) internal successors, (345), 15 states have internal predecessors, (345), 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) [2024-06-04 18:18:21,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 8 remaining) [2024-06-04 18:18:21,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 8 remaining) [2024-06-04 18:18:21,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 8 remaining) [2024-06-04 18:18:21,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 8 remaining) [2024-06-04 18:18:21,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-06-04 18:18:21,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-06-04 18:18:21,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-06-04 18:18:21,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-06-04 18:18:21,676 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-06-04 18:18:21,849 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 [2024-06-04 18:18:21,850 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-06-04 18:18:21,853 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-04 18:18:21,853 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-04 18:18:21,856 INFO L507 ceAbstractionStarter]: Automizer considered 4 witness invariants [2024-06-04 18:18:21,856 INFO L508 ceAbstractionStarter]: WitnessConsidered=4 [2024-06-04 18:18:21,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.06 06:18:21 BasicIcfg [2024-06-04 18:18:21,856 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-04 18:18:21,857 INFO L158 Benchmark]: Toolchain (without parser) took 12512.03ms. Allocated memory was 172.0MB in the beginning and 660.6MB in the end (delta: 488.6MB). Free memory was 114.0MB in the beginning and 568.0MB in the end (delta: -454.1MB). Peak memory consumption was 414.5MB. Max. memory is 16.1GB. [2024-06-04 18:18:21,857 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 172.0MB. Free memory was 134.7MB in the beginning and 134.5MB in the end (delta: 134.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-04 18:18:21,857 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 172.0MB. Free memory is still 129.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-04 18:18:21,858 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.77ms. Allocated memory is still 172.0MB. Free memory was 113.9MB in the beginning and 92.0MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-06-04 18:18:21,858 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.73ms. Allocated memory is still 172.0MB. Free memory was 92.0MB in the beginning and 87.5MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-04 18:18:21,858 INFO L158 Benchmark]: Boogie Preprocessor took 69.16ms. Allocated memory is still 172.0MB. Free memory was 87.5MB in the beginning and 83.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-04 18:18:21,859 INFO L158 Benchmark]: RCFGBuilder took 1123.68ms. Allocated memory was 172.0MB in the beginning and 232.8MB in the end (delta: 60.8MB). Free memory was 83.3MB in the beginning and 148.3MB in the end (delta: -64.9MB). Peak memory consumption was 37.0MB. Max. memory is 16.1GB. [2024-06-04 18:18:21,859 INFO L158 Benchmark]: TraceAbstraction took 10828.04ms. Allocated memory was 232.8MB in the beginning and 660.6MB in the end (delta: 427.8MB). Free memory was 147.2MB in the beginning and 568.0MB in the end (delta: -420.8MB). Peak memory consumption was 383.8MB. Max. memory is 16.1GB. [2024-06-04 18:18:21,861 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 0.17ms. Allocated memory is still 172.0MB. Free memory was 134.7MB in the beginning and 134.5MB in the end (delta: 134.9kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.12ms. Allocated memory is still 172.0MB. Free memory is still 129.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 409.77ms. Allocated memory is still 172.0MB. Free memory was 113.9MB in the beginning and 92.0MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.73ms. Allocated memory is still 172.0MB. Free memory was 92.0MB in the beginning and 87.5MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.16ms. Allocated memory is still 172.0MB. Free memory was 87.5MB in the beginning and 83.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1123.68ms. Allocated memory was 172.0MB in the beginning and 232.8MB in the end (delta: 60.8MB). Free memory was 83.3MB in the beginning and 148.3MB in the end (delta: -64.9MB). Peak memory consumption was 37.0MB. Max. memory is 16.1GB. * TraceAbstraction took 10828.04ms. Allocated memory was 232.8MB in the beginning and 660.6MB in the end (delta: 427.8MB). Free memory was 147.2MB in the beginning and 568.0MB in the end (delta: -420.8MB). Peak memory consumption was 383.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 146]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 147]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 148]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 149]: 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 9 procedures, 84 locations, 8 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: 10.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 346 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 306 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1380 IncrementalHoareTripleChecker+Invalid, 1425 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 0 mSDtfsCounter, 1380 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=168occurred in iteration=1, InterpolantAutomatonStates: 14, 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, 6.8s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 4438 SizeOfPredicates, 2 NumberOfNonLiveVariables, 158 ConjunctsInSsa, 24 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-04 18:18:21,913 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