./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-bad-ring-nondet.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-bad-ring-nondet.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cde23df1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-ring-nondet.wvr.c ./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-bad-ring-nondet.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-cde23df-m [2024-06-14 14:19:42,666 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 14:19:42,719 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 14:19:42,722 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 14:19:42,722 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 14:19:42,736 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 14:19:42,737 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 14:19:42,737 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 14:19:42,738 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 14:19:42,744 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 14:19:42,744 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 14:19:42,745 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 14:19:42,745 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 14:19:42,746 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 14:19:42,747 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 14:19:42,747 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 14:19:42,747 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 14:19:42,747 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 14:19:42,747 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 14:19:42,748 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 14:19:42,748 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 14:19:42,748 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 14:19:42,748 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 14:19:42,749 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 14:19:42,749 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 14:19:42,749 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 14:19:42,749 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 14:19:42,749 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 14:19:42,750 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 14:19:42,750 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 14:19:42,751 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 14:19:42,751 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 14:19:42,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:19:42,751 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 14:19:42,751 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 14:19:42,752 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 14:19:42,752 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 14:19:42,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 14:19:42,752 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 14:19:42,752 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 14:19:42,752 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 14:19:42,753 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 14:19:42,753 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 14:19:42,753 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 14:19:42,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 14:19:42,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 14:19:42,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 14:19:43,000 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 14:19:43,000 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 14:19:43,001 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-ring-nondet.wvr.c [2024-06-14 14:19:43,998 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 14:19:44,165 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 14:19:44,166 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-ring-nondet.wvr.c [2024-06-14 14:19:44,173 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a386e3d19/36bdf992c97d40e6b205a78f8d45e16c/FLAGca704a180 [2024-06-14 14:19:44,187 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a386e3d19/36bdf992c97d40e6b205a78f8d45e16c [2024-06-14 14:19:44,191 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 14:19:44,191 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 14:19:44,193 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-bad-ring-nondet.wvr.yml/witness.yml [2024-06-14 14:19:44,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 14:19:44,261 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 14:19:44,262 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 14:19:44,262 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 14:19:44,265 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 14:19:44,266 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:19:44" (1/2) ... [2024-06-14 14:19:44,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fcc9582 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:19:44, skipping insertion in model container [2024-06-14 14:19:44,267 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:19:44" (1/2) ... [2024-06-14 14:19:44,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@55ce240f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:19:44, skipping insertion in model container [2024-06-14 14:19:44,269 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:19:44" (2/2) ... [2024-06-14 14:19:44,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fcc9582 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:19:44, skipping insertion in model container [2024-06-14 14:19:44,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:19:44" (2/2) ... [2024-06-14 14:19:44,269 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 14:19:44,281 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 14:19:44,285 INFO L97 edCorrectnessWitness]: Location invariant before [L150-L150] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((4294967296LL + (long long )q1_front) + (long long )q2_front >= 0LL && (4294967296LL + (long long )q1_front) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )q1_front) + (long long )q3_front >= 0LL) && (4294967296LL + (long long )q1_front) + (long long )q3_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 )q1_back) + (long long )q3_front >= 0LL) && (4294967296LL + (long long )q1_back) + (long long )q3_back >= 0LL) && (4294967296LL + (long long )q2_front) + (long long )q3_front >= 0LL) && (4294967296LL + (long long )q2_front) + (long long )q3_back >= 0LL) && (4294967296LL + (long long )q2_back) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )q2_back) + (long long )q3_front >= 0LL) && (4294967296LL + (long long )q2_back) + (long long )q3_back >= 0LL) && (4294967296LL + (long long )q3_back) + (long long )q3_front >= 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 )q3_front >= 0LL) && (4294967296LL + (long long )N) + (long long )q3_back >= 0LL) && (4294967296LL + (long long )N) + (long long )n1 >= 0LL) && (4294967296LL + (long long )N) + (long long )n2 >= 0LL) && (4294967296LL + (long long )N) + (long long )n3 >= 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 )q3_front >= 0LL) && (4294967296LL + (long long )n1) + (long long )q3_back >= 0LL) && (4294967296LL + (long long )n1) + (long long )n2 >= 0LL) && (4294967296LL + (long long )n1) + (long long )n3 >= 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 )n2) + (long long )q3_front >= 0LL) && (4294967296LL + (long long )n2) + (long long )q3_back >= 0LL) && (4294967296LL + (long long )n2) + (long long )n3 >= 0LL) && (4294967296LL + (long long )n3) + (long long )q1_front >= 0LL) && (4294967296LL + (long long )n3) + (long long )q1_back >= 0LL) && (4294967296LL + (long long )n3) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )n3) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )n3) + (long long )q3_front >= 0LL) && (4294967296LL + (long long )n3) + (long long )q3_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 )q3_front >= 0LL) && (4294967295LL - (long long )N) + (long long )q3_back >= 0LL) && (4294967295LL - (long long )N) + (long long )n1 >= 0LL) && (4294967295LL - (long long )N) + (long long )n2 >= 0LL) && (4294967295LL - (long long )N) + (long long )n3 >= 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 )q3_front >= 0LL) && (4294967295LL - (long long )n1) + (long long )q3_back >= 0LL) && (4294967295LL - (long long )n1) + (long long )n2 >= 0LL) && (4294967295LL - (long long )n1) + (long long )n3 >= 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 )n2) + (long long )q3_front >= 0LL) && (4294967295LL - (long long )n2) + (long long )q3_back >= 0LL) && (4294967295LL - (long long )n2) + (long long )n3 >= 0LL) && (4294967295LL - (long long )n3) + (long long )q1_front >= 0LL) && (4294967295LL - (long long )n3) + (long long )q1_back >= 0LL) && (4294967295LL - (long long )n3) + (long long )q2_front >= 0LL) && (4294967295LL - (long long )n3) + (long long )q2_back >= 0LL) && (4294967295LL - (long long )n3) + (long long )q3_front >= 0LL) && (4294967295LL - (long long )n3) + (long long )q3_back >= 0LL) && (4294967295LL + (long long )N) - (long long )n1 >= 0LL) && (4294967295LL + (long long )N) - (long long )n2 >= 0LL) && (4294967295LL + (long long )N) - (long long )n3 >= 0LL) && (4294967295LL + (long long )n1) - (long long )n2 >= 0LL) && (4294967295LL + (long long )n1) - (long long )n3 >= 0LL) && (4294967295LL + (long long )n2) - (long long )n3 >= 0LL) && (4294967294LL - (long long )N) - (long long )n1 >= 0LL) && (4294967294LL - (long long )N) - (long long )n2 >= 0LL) && (4294967294LL - (long long )N) - (long long )n3 >= 0LL) && (4294967294LL - (long long )n1) - (long long )n2 >= 0LL) && (4294967294LL - (long long )n1) - (long long )n3 >= 0LL) && (4294967294LL - (long long )n2) - (long long )n3 >= 0LL) [2024-06-14 14:19:44,285 INFO L97 edCorrectnessWitness]: Location invariant before [L151-L151] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((4294967296LL + (long long )q1_front) + (long long )q2_front >= 0LL && (4294967296LL + (long long )q1_front) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )q1_front) + (long long )q3_front >= 0LL) && (4294967296LL + (long long )q1_front) + (long long )q3_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 )q1_back) + (long long )q3_front >= 0LL) && (4294967296LL + (long long )q1_back) + (long long )q3_back >= 0LL) && (4294967296LL + (long long )q2_front) + (long long )q3_front >= 0LL) && (4294967296LL + (long long )q2_front) + (long long )q3_back >= 0LL) && (4294967296LL + (long long )q2_back) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )q2_back) + (long long )q3_front >= 0LL) && (4294967296LL + (long long )q2_back) + (long long )q3_back >= 0LL) && (4294967296LL + (long long )q3_back) + (long long )q3_front >= 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 )q3_front >= 0LL) && (4294967296LL + (long long )N) + (long long )q3_back >= 0LL) && (4294967296LL + (long long )N) + (long long )n1 >= 0LL) && (4294967296LL + (long long )N) + (long long )n2 >= 0LL) && (4294967296LL + (long long )N) + (long long )n3 >= 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 )q3_front >= 0LL) && (4294967296LL + (long long )n1) + (long long )q3_back >= 0LL) && (4294967296LL + (long long )n1) + (long long )n2 >= 0LL) && (4294967296LL + (long long )n1) + (long long )n3 >= 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 )n2) + (long long )q3_front >= 0LL) && (4294967296LL + (long long )n2) + (long long )q3_back >= 0LL) && (4294967296LL + (long long )n2) + (long long )n3 >= 0LL) && (4294967296LL + (long long )n3) + (long long )q1_front >= 0LL) && (4294967296LL + (long long )n3) + (long long )q1_back >= 0LL) && (4294967296LL + (long long )n3) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )n3) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )n3) + (long long )q3_front >= 0LL) && (4294967296LL + (long long )n3) + (long long )q3_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 )q3_front >= 0LL) && (4294967295LL - (long long )N) + (long long )q3_back >= 0LL) && (4294967295LL - (long long )N) + (long long )n1 >= 0LL) && (4294967295LL - (long long )N) + (long long )n2 >= 0LL) && (4294967295LL - (long long )N) + (long long )n3 >= 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 )q3_front >= 0LL) && (4294967295LL - (long long )n1) + (long long )q3_back >= 0LL) && (4294967295LL - (long long )n1) + (long long )n2 >= 0LL) && (4294967295LL - (long long )n1) + (long long )n3 >= 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 )n2) + (long long )q3_front >= 0LL) && (4294967295LL - (long long )n2) + (long long )q3_back >= 0LL) && (4294967295LL - (long long )n2) + (long long )n3 >= 0LL) && (4294967295LL - (long long )n3) + (long long )q1_front >= 0LL) && (4294967295LL - (long long )n3) + (long long )q1_back >= 0LL) && (4294967295LL - (long long )n3) + (long long )q2_front >= 0LL) && (4294967295LL - (long long )n3) + (long long )q2_back >= 0LL) && (4294967295LL - (long long )n3) + (long long )q3_front >= 0LL) && (4294967295LL - (long long )n3) + (long long )q3_back >= 0LL) && (4294967295LL + (long long )N) - (long long )n1 >= 0LL) && (4294967295LL + (long long )N) - (long long )n2 >= 0LL) && (4294967295LL + (long long )N) - (long long )n3 >= 0LL) && (4294967295LL + (long long )n1) - (long long )n2 >= 0LL) && (4294967295LL + (long long )n1) - (long long )n3 >= 0LL) && (4294967295LL + (long long )n2) - (long long )n3 >= 0LL) && (4294967294LL - (long long )N) - (long long )n1 >= 0LL) && (4294967294LL - (long long )N) - (long long )n2 >= 0LL) && (4294967294LL - (long long )N) - (long long )n3 >= 0LL) && (4294967294LL - (long long )n1) - (long long )n2 >= 0LL) && (4294967294LL - (long long )n1) - (long long )n3 >= 0LL) && (4294967294LL - (long long )n2) - (long long )n3 >= 0LL) [2024-06-14 14:19:44,285 INFO L97 edCorrectnessWitness]: Location invariant before [L149-L149] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((4294967296LL + (long long )q1_front) + (long long )q2_front >= 0LL && (4294967296LL + (long long )q1_front) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )q1_front) + (long long )q3_front >= 0LL) && (4294967296LL + (long long )q1_front) + (long long )q3_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 )q1_back) + (long long )q3_front >= 0LL) && (4294967296LL + (long long )q1_back) + (long long )q3_back >= 0LL) && (4294967296LL + (long long )q2_front) + (long long )q3_front >= 0LL) && (4294967296LL + (long long )q2_front) + (long long )q3_back >= 0LL) && (4294967296LL + (long long )q2_back) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )q2_back) + (long long )q3_front >= 0LL) && (4294967296LL + (long long )q2_back) + (long long )q3_back >= 0LL) && (4294967296LL + (long long )q3_back) + (long long )q3_front >= 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 )q3_front >= 0LL) && (4294967296LL + (long long )N) + (long long )q3_back >= 0LL) && (4294967296LL + (long long )N) + (long long )n1 >= 0LL) && (4294967296LL + (long long )N) + (long long )n2 >= 0LL) && (4294967296LL + (long long )N) + (long long )n3 >= 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 )q3_front >= 0LL) && (4294967296LL + (long long )n1) + (long long )q3_back >= 0LL) && (4294967296LL + (long long )n1) + (long long )n2 >= 0LL) && (4294967296LL + (long long )n1) + (long long )n3 >= 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 )n2) + (long long )q3_front >= 0LL) && (4294967296LL + (long long )n2) + (long long )q3_back >= 0LL) && (4294967296LL + (long long )n2) + (long long )n3 >= 0LL) && (4294967296LL + (long long )n3) + (long long )q1_front >= 0LL) && (4294967296LL + (long long )n3) + (long long )q1_back >= 0LL) && (4294967296LL + (long long )n3) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )n3) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )n3) + (long long )q3_front >= 0LL) && (4294967296LL + (long long )n3) + (long long )q3_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 )q3_front >= 0LL) && (4294967295LL - (long long )N) + (long long )q3_back >= 0LL) && (4294967295LL - (long long )N) + (long long )n1 >= 0LL) && (4294967295LL - (long long )N) + (long long )n2 >= 0LL) && (4294967295LL - (long long )N) + (long long )n3 >= 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 )q3_front >= 0LL) && (4294967295LL - (long long )n1) + (long long )q3_back >= 0LL) && (4294967295LL - (long long )n1) + (long long )n2 >= 0LL) && (4294967295LL - (long long )n1) + (long long )n3 >= 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 )n2) + (long long )q3_front >= 0LL) && (4294967295LL - (long long )n2) + (long long )q3_back >= 0LL) && (4294967295LL - (long long )n2) + (long long )n3 >= 0LL) && (4294967295LL - (long long )n3) + (long long )q1_front >= 0LL) && (4294967295LL - (long long )n3) + (long long )q1_back >= 0LL) && (4294967295LL - (long long )n3) + (long long )q2_front >= 0LL) && (4294967295LL - (long long )n3) + (long long )q2_back >= 0LL) && (4294967295LL - (long long )n3) + (long long )q3_front >= 0LL) && (4294967295LL - (long long )n3) + (long long )q3_back >= 0LL) && (4294967295LL + (long long )N) - (long long )n1 >= 0LL) && (4294967295LL + (long long )N) - (long long )n2 >= 0LL) && (4294967295LL + (long long )N) - (long long )n3 >= 0LL) && (4294967295LL + (long long )n1) - (long long )n2 >= 0LL) && (4294967295LL + (long long )n1) - (long long )n3 >= 0LL) && (4294967295LL + (long long )n2) - (long long )n3 >= 0LL) && (4294967294LL - (long long )N) - (long long )n1 >= 0LL) && (4294967294LL - (long long )N) - (long long )n2 >= 0LL) && (4294967294LL - (long long )N) - (long long )n3 >= 0LL) && (4294967294LL - (long long )n1) - (long long )n2 >= 0LL) && (4294967294LL - (long long )n1) - (long long )n3 >= 0LL) && (4294967294LL - (long long )n2) - (long long )n3 >= 0LL) [2024-06-14 14:19:44,286 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 14:19:44,286 INFO L106 edCorrectnessWitness]: ghost_update [L148-L148] multithreaded = 1; [2024-06-14 14:19:44,309 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 14:19:44,463 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:19:44,469 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-14 14:19:44,596 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:19:44,612 INFO L206 MainTranslator]: Completed translation [2024-06-14 14:19:44,613 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:19:44 WrapperNode [2024-06-14 14:19:44,613 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 14:19:44,613 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 14:19:44,614 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 14:19:44,614 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 14:19:44,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:19:44" (1/1) ... [2024-06-14 14:19:44,643 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:19:44" (1/1) ... [2024-06-14 14:19:44,695 INFO L138 Inliner]: procedures = 24, calls = 49, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 323 [2024-06-14 14:19:44,695 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 14:19:44,696 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 14:19:44,696 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 14:19:44,696 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 14:19:44,704 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:19:44" (1/1) ... [2024-06-14 14:19:44,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:19:44" (1/1) ... [2024-06-14 14:19:44,721 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:19:44" (1/1) ... [2024-06-14 14:19:44,734 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]. [2024-06-14 14:19:44,735 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:19:44" (1/1) ... [2024-06-14 14:19:44,735 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:19:44" (1/1) ... [2024-06-14 14:19:44,742 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:19:44" (1/1) ... [2024-06-14 14:19:44,746 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:19:44" (1/1) ... [2024-06-14 14:19:44,748 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:19:44" (1/1) ... [2024-06-14 14:19:44,749 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:19:44" (1/1) ... [2024-06-14 14:19:44,753 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 14:19:44,753 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 14:19:44,754 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 14:19:44,754 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 14:19:44,754 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:19:44" (1/1) ... [2024-06-14 14:19:44,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:19:44,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:19:44,787 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) [2024-06-14 14:19:44,808 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 [2024-06-14 14:19:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 14:19:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-14 14:19:44,823 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-14 14:19:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-14 14:19:44,823 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-14 14:19:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-14 14:19:44,823 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-14 14:19:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-14 14:19:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-14 14:19:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-14 14:19:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-14 14:19:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-14 14:19:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-14 14:19:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-14 14:19:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 14:19:44,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 14:19:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-14 14:19:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-14 14:19:44,829 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-14 14:19:44,936 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 14:19:44,938 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 14:19:45,408 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 14:19:45,408 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 14:19:45,691 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 14:19:45,691 INFO L320 CfgBuilder]: Removed 6 assume(true) statements. [2024-06-14 14:19:45,692 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:19:45 BoogieIcfgContainer [2024-06-14 14:19:45,692 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 14:19:45,695 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 14:19:45,695 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 14:19:45,698 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 14:19:45,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 02:19:44" (1/4) ... [2024-06-14 14:19:45,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228d35d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 02:19:45, skipping insertion in model container [2024-06-14 14:19:45,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:19:44" (2/4) ... [2024-06-14 14:19:45,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228d35d0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 02:19:45, skipping insertion in model container [2024-06-14 14:19:45,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:19:44" (3/4) ... [2024-06-14 14:19:45,700 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228d35d0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 02:19:45, skipping insertion in model container [2024-06-14 14:19:45,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:19:45" (4/4) ... [2024-06-14 14:19:45,702 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-ring-nondet.wvr.c [2024-06-14 14:19:45,716 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 14:19:45,716 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-14 14:19:45,716 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 14:19:45,778 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-06-14 14:19:45,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 60 transitions, 141 flow [2024-06-14 14:19:45,870 INFO L124 PetriNetUnfolderBase]: 10/57 cut-off events. [2024-06-14 14:19:45,871 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-14 14:19:45,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 57 events. 10/57 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 111 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 47. Up to 3 conditions per place. [2024-06-14 14:19:45,873 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 60 transitions, 141 flow [2024-06-14 14:19:45,875 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 55 transitions, 125 flow [2024-06-14 14:19:45,881 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 14:19:45,886 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;@2a4a5bee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 14:19:45,886 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-14 14:19:45,891 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 14:19:45,891 INFO L124 PetriNetUnfolderBase]: 3/14 cut-off events. [2024-06-14 14:19:45,891 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 14:19:45,891 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:19:45,892 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:19:45,892 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)] === [2024-06-14 14:19:45,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:19:45,896 INFO L85 PathProgramCache]: Analyzing trace with hash 424813998, now seen corresponding path program 1 times [2024-06-14 14:19:45,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:19:45,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129120102] [2024-06-14 14:19:45,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:19:45,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:19:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:19:48,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:19:48,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:19:48,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129120102] [2024-06-14 14:19:48,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129120102] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:19:48,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:19:48,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-14 14:19:48,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688017079] [2024-06-14 14:19:48,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:19:48,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-14 14:19:48,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:19:48,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-14 14:19:48,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-14 14:19:48,177 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 60 [2024-06-14 14:19:48,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 55 transitions, 125 flow. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2024-06-14 14:19:48,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:19:48,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 60 [2024-06-14 14:19:48,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:19:49,409 INFO L124 PetriNetUnfolderBase]: 1762/3046 cut-off events. [2024-06-14 14:19:49,410 INFO L125 PetriNetUnfolderBase]: For 107/107 co-relation queries the response was YES. [2024-06-14 14:19:49,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5630 conditions, 3046 events. 1762/3046 cut-off events. For 107/107 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 18423 event pairs, 632 based on Foata normal form. 440/3058 useless extension candidates. Maximal degree in co-relation 5428. Up to 1850 conditions per place. [2024-06-14 14:19:49,428 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 50 selfloop transitions, 3 changer transitions 2/69 dead transitions. [2024-06-14 14:19:49,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 69 transitions, 269 flow [2024-06-14 14:19:49,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-14 14:19:49,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-14 14:19:49,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 131 transitions. [2024-06-14 14:19:49,439 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5458333333333333 [2024-06-14 14:19:49,440 INFO L175 Difference]: Start difference. First operand has 55 places, 55 transitions, 125 flow. Second operand 4 states and 131 transitions. [2024-06-14 14:19:49,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 69 transitions, 269 flow [2024-06-14 14:19:49,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 69 transitions, 257 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-14 14:19:49,450 INFO L231 Difference]: Finished difference. Result has 53 places, 52 transitions, 125 flow [2024-06-14 14:19:49,451 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=125, PETRI_PLACES=53, PETRI_TRANSITIONS=52} [2024-06-14 14:19:49,454 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -2 predicate places. [2024-06-14 14:19:49,454 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 52 transitions, 125 flow [2024-06-14 14:19:49,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2024-06-14 14:19:49,455 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:19:49,455 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:19:49,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-14 14:19:49,455 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:19:49,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:19:49,457 INFO L85 PathProgramCache]: Analyzing trace with hash -125138308, now seen corresponding path program 1 times [2024-06-14 14:19:49,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:19:49,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527660817] [2024-06-14 14:19:49,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:19:49,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:19:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:19:49,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:19:49,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:19:49,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527660817] [2024-06-14 14:19:49,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527660817] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:19:49,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:19:49,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 14:19:49,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468560539] [2024-06-14 14:19:49,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:19:49,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 14:19:49,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:19:49,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 14:19:49,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 14:19:49,554 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 60 [2024-06-14 14:19:49,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 52 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2024-06-14 14:19:49,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:19:49,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 60 [2024-06-14 14:19:49,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:19:49,846 INFO L124 PetriNetUnfolderBase]: 1417/2552 cut-off events. [2024-06-14 14:19:49,846 INFO L125 PetriNetUnfolderBase]: For 125/125 co-relation queries the response was YES. [2024-06-14 14:19:49,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5018 conditions, 2552 events. 1417/2552 cut-off events. For 125/125 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 14531 event pairs, 559 based on Foata normal form. 43/2203 useless extension candidates. Maximal degree in co-relation 2106. Up to 1694 conditions per place. [2024-06-14 14:19:49,859 INFO L140 encePairwiseOnDemand]: 56/60 looper letters, 49 selfloop transitions, 3 changer transitions 0/68 dead transitions. [2024-06-14 14:19:49,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 68 transitions, 264 flow [2024-06-14 14:19:49,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:19:49,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:19:49,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 112 transitions. [2024-06-14 14:19:49,861 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6222222222222222 [2024-06-14 14:19:49,861 INFO L175 Difference]: Start difference. First operand has 53 places, 52 transitions, 125 flow. Second operand 3 states and 112 transitions. [2024-06-14 14:19:49,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 68 transitions, 264 flow [2024-06-14 14:19:49,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 68 transitions, 260 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-14 14:19:49,863 INFO L231 Difference]: Finished difference. Result has 53 places, 54 transitions, 140 flow [2024-06-14 14:19:49,863 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=53, PETRI_TRANSITIONS=54} [2024-06-14 14:19:49,864 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -2 predicate places. [2024-06-14 14:19:49,864 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 54 transitions, 140 flow [2024-06-14 14:19:49,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2024-06-14 14:19:49,864 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:19:49,864 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:19:49,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-14 14:19:49,865 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:19:49,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:19:49,865 INFO L85 PathProgramCache]: Analyzing trace with hash -290203447, now seen corresponding path program 1 times [2024-06-14 14:19:49,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:19:49,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492166587] [2024-06-14 14:19:49,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:19:49,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:19:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:19:49,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:19:49,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:19:49,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492166587] [2024-06-14 14:19:49,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492166587] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:19:49,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:19:49,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 14:19:49,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010217265] [2024-06-14 14:19:49,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:19:49,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-14 14:19:49,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:19:49,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-14 14:19:49,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-14 14:19:49,990 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 60 [2024-06-14 14:19:49,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 54 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2024-06-14 14:19:49,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:19:49,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 60 [2024-06-14 14:19:49,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:19:50,294 INFO L124 PetriNetUnfolderBase]: 1467/2706 cut-off events. [2024-06-14 14:19:50,294 INFO L125 PetriNetUnfolderBase]: For 428/428 co-relation queries the response was YES. [2024-06-14 14:19:50,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5621 conditions, 2706 events. 1467/2706 cut-off events. For 428/428 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 15755 event pairs, 1050 based on Foata normal form. 17/2331 useless extension candidates. Maximal degree in co-relation 2505. Up to 1972 conditions per place. [2024-06-14 14:19:50,309 INFO L140 encePairwiseOnDemand]: 55/60 looper letters, 37 selfloop transitions, 2 changer transitions 19/74 dead transitions. [2024-06-14 14:19:50,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 74 transitions, 302 flow [2024-06-14 14:19:50,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-14 14:19:50,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-14 14:19:50,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 137 transitions. [2024-06-14 14:19:50,313 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5708333333333333 [2024-06-14 14:19:50,313 INFO L175 Difference]: Start difference. First operand has 53 places, 54 transitions, 140 flow. Second operand 4 states and 137 transitions. [2024-06-14 14:19:50,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 74 transitions, 302 flow [2024-06-14 14:19:50,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 74 transitions, 299 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:19:50,315 INFO L231 Difference]: Finished difference. Result has 57 places, 55 transitions, 153 flow [2024-06-14 14:19:50,316 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=153, PETRI_PLACES=57, PETRI_TRANSITIONS=55} [2024-06-14 14:19:50,317 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 2 predicate places. [2024-06-14 14:19:50,317 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 55 transitions, 153 flow [2024-06-14 14:19:50,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2024-06-14 14:19:50,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:19:50,317 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:19:50,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-14 14:19:50,318 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:19:50,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:19:50,318 INFO L85 PathProgramCache]: Analyzing trace with hash 808195721, now seen corresponding path program 1 times [2024-06-14 14:19:50,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:19:50,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650323366] [2024-06-14 14:19:50,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:19:50,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:19:50,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:19:50,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-06-14 14:19:50,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:19:50,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650323366] [2024-06-14 14:19:50,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650323366] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:19:50,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:19:50,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:19:50,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065927808] [2024-06-14 14:19:50,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:19:50,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-14 14:19:50,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:19:50,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-14 14:19:50,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-14 14:19:50,478 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 60 [2024-06-14 14:19:50,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 55 transitions, 153 flow. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2024-06-14 14:19:50,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:19:50,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 60 [2024-06-14 14:19:50,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:19:50,852 INFO L124 PetriNetUnfolderBase]: 1914/3515 cut-off events. [2024-06-14 14:19:50,852 INFO L125 PetriNetUnfolderBase]: For 716/716 co-relation queries the response was YES. [2024-06-14 14:19:50,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7435 conditions, 3515 events. 1914/3515 cut-off events. For 716/716 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 21715 event pairs, 1403 based on Foata normal form. 51/3196 useless extension candidates. Maximal degree in co-relation 7420. Up to 1973 conditions per place. [2024-06-14 14:19:50,871 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 38 selfloop transitions, 2 changer transitions 30/86 dead transitions. [2024-06-14 14:19:50,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 86 transitions, 378 flow [2024-06-14 14:19:50,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 14:19:50,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 14:19:50,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 165 transitions. [2024-06-14 14:19:50,873 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.55 [2024-06-14 14:19:50,873 INFO L175 Difference]: Start difference. First operand has 57 places, 55 transitions, 153 flow. Second operand 5 states and 165 transitions. [2024-06-14 14:19:50,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 86 transitions, 378 flow [2024-06-14 14:19:50,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 86 transitions, 366 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-06-14 14:19:50,877 INFO L231 Difference]: Finished difference. Result has 61 places, 56 transitions, 163 flow [2024-06-14 14:19:50,877 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=163, PETRI_PLACES=61, PETRI_TRANSITIONS=56} [2024-06-14 14:19:50,878 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 6 predicate places. [2024-06-14 14:19:50,878 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 56 transitions, 163 flow [2024-06-14 14:19:50,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2024-06-14 14:19:50,878 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:19:50,878 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:19:50,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-14 14:19:50,879 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:19:50,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:19:50,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1469016485, now seen corresponding path program 1 times [2024-06-14 14:19:50,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:19:50,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234737203] [2024-06-14 14:19:50,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:19:50,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:19:50,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:19:54,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:19:54,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:19:54,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234737203] [2024-06-14 14:19:54,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234737203] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-14 14:19:54,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010800832] [2024-06-14 14:19:54,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:19:54,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-14 14:19:54,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:19:54,608 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) [2024-06-14 14:19:54,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-14 14:19:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:19:54,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 39 conjunts are in the unsatisfiable core [2024-06-14 14:19:54,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-14 14:19:55,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:19:55,776 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-14 14:20:00,698 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-06-14 14:20:00,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010800832] provided 1 perfect and 1 imperfect interpolant sequences [2024-06-14 14:20:00,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-06-14 14:20:00,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10, 12] total 26 [2024-06-14 14:20:00,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266308253] [2024-06-14 14:20:00,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:20:00,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-14 14:20:00,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:20:00,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-14 14:20:00,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=587, Unknown=0, NotChecked=0, Total=702 [2024-06-14 14:20:00,770 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 60 [2024-06-14 14:20:00,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 56 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 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) [2024-06-14 14:20:00,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:20:00,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 60 [2024-06-14 14:20:00,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:20:01,252 INFO L124 PetriNetUnfolderBase]: 1777/2985 cut-off events. [2024-06-14 14:20:01,253 INFO L125 PetriNetUnfolderBase]: For 753/753 co-relation queries the response was YES. [2024-06-14 14:20:01,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6320 conditions, 2985 events. 1777/2985 cut-off events. For 753/753 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 16793 event pairs, 761 based on Foata normal form. 126/2712 useless extension candidates. Maximal degree in co-relation 6298. Up to 2405 conditions per place. [2024-06-14 14:20:01,262 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 0 selfloop transitions, 0 changer transitions 65/65 dead transitions. [2024-06-14 14:20:01,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 65 transitions, 289 flow [2024-06-14 14:20:01,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-14 14:20:01,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-14 14:20:01,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2024-06-14 14:20:01,264 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4625 [2024-06-14 14:20:01,264 INFO L175 Difference]: Start difference. First operand has 61 places, 56 transitions, 163 flow. Second operand 4 states and 111 transitions. [2024-06-14 14:20:01,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 65 transitions, 289 flow [2024-06-14 14:20:01,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 65 transitions, 279 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-06-14 14:20:01,266 INFO L231 Difference]: Finished difference. Result has 57 places, 0 transitions, 0 flow [2024-06-14 14:20:01,266 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=57, PETRI_TRANSITIONS=0} [2024-06-14 14:20:01,267 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 2 predicate places. [2024-06-14 14:20:01,267 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 0 transitions, 0 flow [2024-06-14 14:20:01,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 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) [2024-06-14 14:20:01,269 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-14 14:20:01,270 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-14 14:20:01,270 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-14 14:20:01,270 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-14 14:20:01,270 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-14 14:20:01,270 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-14 14:20:01,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-06-14 14:20:01,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-14 14:20:01,485 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-06-14 14:20:01,488 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-14 14:20:01,488 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-14 14:20:01,491 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-14 14:20:01,491 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-14 14:20:01,491 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 02:20:01 BasicIcfg [2024-06-14 14:20:01,492 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-14 14:20:01,492 INFO L158 Benchmark]: Toolchain (without parser) took 17231.18ms. Allocated memory was 142.6MB in the beginning and 625.0MB in the end (delta: 482.3MB). Free memory was 83.9MB in the beginning and 246.1MB in the end (delta: -162.3MB). Peak memory consumption was 321.5MB. Max. memory is 16.1GB. [2024-06-14 14:20:01,492 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 104.0MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:20:01,493 INFO L158 Benchmark]: Witness Parser took 0.40ms. Allocated memory is still 142.6MB. Free memory is still 87.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:20:01,493 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.39ms. Allocated memory is still 142.6MB. Free memory was 83.5MB in the beginning and 62.8MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-06-14 14:20:01,493 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.02ms. Allocated memory is still 142.6MB. Free memory was 62.8MB in the beginning and 58.7MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-14 14:20:01,493 INFO L158 Benchmark]: Boogie Preprocessor took 56.96ms. Allocated memory is still 142.6MB. Free memory was 58.7MB in the beginning and 109.6MB in the end (delta: -50.9MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2024-06-14 14:20:01,494 INFO L158 Benchmark]: RCFGBuilder took 938.40ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 108.9MB in the beginning and 102.9MB in the end (delta: 6.0MB). Peak memory consumption was 75.6MB. Max. memory is 16.1GB. [2024-06-14 14:20:01,494 INFO L158 Benchmark]: TraceAbstraction took 15796.36ms. Allocated memory was 195.0MB in the beginning and 625.0MB in the end (delta: 429.9MB). Free memory was 101.8MB in the beginning and 246.1MB in the end (delta: -144.3MB). Peak memory consumption was 285.9MB. Max. memory is 16.1GB. [2024-06-14 14:20:01,495 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 104.0MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.40ms. Allocated memory is still 142.6MB. Free memory is still 87.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.39ms. Allocated memory is still 142.6MB. Free memory was 83.5MB in the beginning and 62.8MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.02ms. Allocated memory is still 142.6MB. Free memory was 62.8MB in the beginning and 58.7MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.96ms. Allocated memory is still 142.6MB. Free memory was 58.7MB in the beginning and 109.6MB in the end (delta: -50.9MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * RCFGBuilder took 938.40ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 108.9MB in the beginning and 102.9MB in the end (delta: 6.0MB). Peak memory consumption was 75.6MB. Max. memory is 16.1GB. * TraceAbstraction took 15796.36ms. Allocated memory was 195.0MB in the beginning and 625.0MB in the end (delta: 429.9MB). Free memory was 101.8MB in the beginning and 246.1MB in the end (delta: -144.3MB). Peak memory consumption was 285.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 149]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 150]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 151]: 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, 82 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: 15.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 228 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 190 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 498 IncrementalHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 4 mSDtfsCounter, 498 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=163occurred in iteration=4, 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, 12.0s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 7967 SizeOfPredicates, 3 NumberOfNonLiveVariables, 231 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 3/7 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! [2024-06-14 14:20:01,520 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