./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-ext/28_buggy_simple_loop1_vf.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/28_buggy_simple_loop1_vf.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7c74aec 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/pthread-ext/28_buggy_simple_loop1_vf.i ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/28_buggy_simple_loop1_vf.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.fix-undeclared-acsl-variable-e7c74ae-m [2024-02-07 19:23:16,283 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 19:23:16,380 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 19:23:16,386 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 19:23:16,387 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 19:23:16,414 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 19:23:16,415 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 19:23:16,415 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 19:23:16,416 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 19:23:16,420 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 19:23:16,420 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 19:23:16,420 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 19:23:16,421 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 19:23:16,422 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 19:23:16,423 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 19:23:16,423 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 19:23:16,423 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 19:23:16,423 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 19:23:16,424 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 19:23:16,424 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 19:23:16,424 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 19:23:16,425 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 19:23:16,425 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 19:23:16,425 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 19:23:16,425 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 19:23:16,426 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 19:23:16,426 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 19:23:16,426 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 19:23:16,427 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 19:23:16,427 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 19:23:16,428 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 19:23:16,428 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 19:23:16,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:23:16,429 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 19:23:16,429 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 19:23:16,429 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 19:23:16,429 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 19:23:16,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 19:23:16,430 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 19:23:16,430 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 19:23:16,430 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 19:23:16,431 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 19:23:16,431 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 19:23:16,431 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 19:23:16,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 19:23:16,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 19:23:16,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 19:23:16,678 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 19:23:16,678 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 19:23:16,679 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/28_buggy_simple_loop1_vf.i [2024-02-07 19:23:17,837 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 19:23:18,128 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 19:23:18,129 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/28_buggy_simple_loop1_vf.i [2024-02-07 19:23:18,141 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10a4ceebb/35ab40482e0f4d06ab37121f732af8fe/FLAG8d056afb4 [2024-02-07 19:23:18,152 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10a4ceebb/35ab40482e0f4d06ab37121f732af8fe [2024-02-07 19:23:18,154 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 19:23:18,155 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 19:23:18,155 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/28_buggy_simple_loop1_vf.yml/witness.yml [2024-02-07 19:23:18,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 19:23:18,346 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 19:23:18,347 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 19:23:18,347 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 19:23:18,351 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 19:23:18,352 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:23:18" (1/2) ... [2024-02-07 19:23:18,353 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a563d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:23:18, skipping insertion in model container [2024-02-07 19:23:18,353 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:23:18" (1/2) ... [2024-02-07 19:23:18,355 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7fa6e43a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:23:18, skipping insertion in model container [2024-02-07 19:23:18,356 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:23:18" (2/2) ... [2024-02-07 19:23:18,356 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a563d28 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:23:18, skipping insertion in model container [2024-02-07 19:23:18,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:23:18" (2/2) ... [2024-02-07 19:23:18,357 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 19:23:18,556 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 19:23:18,557 INFO L76 edCorrectnessWitness]: Location invariant before [L686-L686] ((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )i) + (long long )y >= 0LL) && ((2147483648LL + (long long )i) + (long long )z >= 0LL)) && ((2147483648LL + (long long )j) + (long long )y >= 0LL)) && ((2147483648LL + (long long )j) + (long long )z >= 0LL)) && ((2147483648LL + (long long )k) + (long long )y >= 0LL)) && ((2147483648LL + (long long )k) + (long long )z >= 0LL)) && ((4294967296LL + (long long )i) + (long long )j >= 0LL)) && ((4294967296LL + (long long )i) + (long long )k >= 0LL)) && ((4294967296LL + (long long )j) + (long long )k >= 0LL)) && ((2147483647LL - (long long )i) + (long long )y >= 0LL)) && ((2147483647LL - (long long )i) + (long long )z >= 0LL)) && ((2147483647LL - (long long )j) + (long long )y >= 0LL)) && ((2147483647LL - (long long )j) + (long long )z >= 0LL)) && ((2147483647LL - (long long )k) + (long long )y >= 0LL)) && ((2147483647LL - (long long )k) + (long long )z >= 0LL)) && ((4294967295LL - (long long )y) + (long long )z >= 0LL)) && ((4294967295LL - (long long )i) + (long long )j >= 0LL)) && ((4294967295LL - (long long )i) + (long long )k >= 0LL)) && ((4294967295LL - (long long )j) + (long long )k >= 0LL)) && ((long long )y + (long long )z >= 0LL)) && ((4294967295LL + (long long )y) - (long long )z >= 0LL)) && ((4294967295LL + (long long )i) - (long long )j >= 0LL)) && ((4294967295LL + (long long )i) - (long long )k >= 0LL)) && ((4294967295LL + (long long )j) - (long long )k >= 0LL)) && ((6442450943LL + (long long )i) - (long long )y >= 0LL)) && ((6442450943LL + (long long )i) - (long long )z >= 0LL)) && ((6442450943LL + (long long )j) - (long long )y >= 0LL)) && ((6442450943LL + (long long )j) - (long long )z >= 0LL)) && ((6442450943LL + (long long )k) - (long long )y >= 0LL)) && ((6442450943LL + (long long )k) - (long long )z >= 0LL)) && ((4294967294LL - (long long )i) - (long long )j >= 0LL)) && ((4294967294LL - (long long )i) - (long long )k >= 0LL)) && ((4294967294LL - (long long )j) - (long long )k >= 0LL)) && ((6442450942LL - (long long )i) - (long long )y >= 0LL)) && ((6442450942LL - (long long )i) - (long long )z >= 0LL)) && ((6442450942LL - (long long )j) - (long long )y >= 0LL)) && ((6442450942LL - (long long )j) - (long long )z >= 0LL)) && ((6442450942LL - (long long )k) - (long long )y >= 0LL)) && ((6442450942LL - (long long )k) - (long long )z >= 0LL)) && ((8589934590LL - (long long )y) - (long long )z >= 0LL) [2024-02-07 19:23:18,557 INFO L76 edCorrectnessWitness]: Location invariant after [L686-L686] ((((((((((((((((((((((((2147483648LL + (long long )i) + (long long )z >= 0LL) && ((2147483648LL + (long long )j) + (long long )z >= 0LL)) && ((2147483648LL + (long long )k) + (long long )z >= 0LL)) && ((4294967296LL + (long long )i) + (long long )j >= 0LL)) && ((4294967296LL + (long long )i) + (long long )k >= 0LL)) && ((4294967296LL + (long long )j) + (long long )k >= 0LL)) && ((2147483647LL - (long long )i) + (long long )z >= 0LL)) && ((2147483647LL - (long long )j) + (long long )z >= 0LL)) && ((2147483647LL - (long long )k) + (long long )z >= 0LL)) && ((4294967295LL - (long long )i) + (long long )j >= 0LL)) && ((4294967295LL - (long long )i) + (long long )k >= 0LL)) && ((4294967295LL - (long long )j) + (long long )k >= 0LL)) && ((4294967295LL + (long long )i) - (long long )j >= 0LL)) && ((4294967295LL + (long long )i) - (long long )k >= 0LL)) && ((4294967295LL + (long long )j) - (long long )k >= 0LL)) && ((6442450943LL + (long long )i) - (long long )z >= 0LL)) && ((6442450943LL + (long long )j) - (long long )z >= 0LL)) && ((6442450943LL + (long long )k) - (long long )z >= 0LL)) && ((4294967294LL - (long long )i) - (long long )j >= 0LL)) && ((4294967294LL - (long long )i) - (long long )k >= 0LL)) && ((4294967294LL - (long long )j) - (long long )k >= 0LL)) && ((6442450942LL - (long long )i) - (long long )z >= 0LL)) && ((6442450942LL - (long long )j) - (long long )z >= 0LL)) && ((6442450942LL - (long long )k) - (long long )z >= 0LL) [2024-02-07 19:23:18,557 INFO L76 edCorrectnessWitness]: Location invariant before [L687-L687] ((((((((((((((2147483647LL + (long long )i) + (long long )j >= 0LL) && ((2147483647LL + (long long )j) + (long long )k >= 0LL)) && ((4294967296LL + (long long )i) + (long long )k >= 0LL)) && ((2147483646LL - (long long )i) + (long long )j >= 0LL)) && ((2147483649LL - (long long )j) + (long long )k >= 0LL)) && ((4294967295LL - (long long )i) + (long long )k >= 0LL)) && ((2147483646LL + (long long )j) - (long long )k >= 0LL)) && ((2147483649LL + (long long )i) - (long long )j >= 0LL)) && ((4294967295LL + (long long )i) - (long long )k >= 0LL)) && ((2147483648LL - (long long )i) - (long long )j >= 0LL)) && ((2147483648LL - (long long )j) - (long long )k >= 0LL)) && ((4294967294LL - (long long )i) - (long long )k >= 0LL)) && (1 == j)) && (j == 1) [2024-02-07 19:23:18,558 INFO L76 edCorrectnessWitness]: Location invariant after [L695-L695] ((((-2LL + (long long )j) + (long long )k >= 0LL) && ((-1LL + (long long )i) + (long long )j >= 0LL)) && ((-1LL + (long long )i) + (long long )k >= 0LL)) && ((0LL - (long long )i) + (long long )j >= 0LL) [2024-02-07 19:23:18,558 INFO L76 edCorrectnessWitness]: Location invariant before [L696-L696] ((((-2LL + (long long )j) + (long long )k >= 0LL) && ((-1LL + (long long )i) + (long long )j >= 0LL)) && ((-1LL + (long long )i) + (long long )k >= 0LL)) && ((0LL - (long long )i) + (long long )j >= 0LL) [2024-02-07 19:23:18,558 INFO L76 edCorrectnessWitness]: Location invariant before [L695-L695] ((((-2LL + (long long )j) + (long long )k >= 0LL) && ((-1LL + (long long )i) + (long long )j >= 0LL)) && ((-1LL + (long long )i) + (long long )k >= 0LL)) && ((0LL - (long long )i) + (long long )j >= 0LL) [2024-02-07 19:23:18,558 INFO L76 edCorrectnessWitness]: Location invariant before [L686-L686] ((((((((((((((((((((((((2147483648LL + (long long )i) + (long long )z >= 0LL) && ((2147483648LL + (long long )j) + (long long )z >= 0LL)) && ((2147483648LL + (long long )k) + (long long )z >= 0LL)) && ((4294967296LL + (long long )i) + (long long )j >= 0LL)) && ((4294967296LL + (long long )i) + (long long )k >= 0LL)) && ((4294967296LL + (long long )j) + (long long )k >= 0LL)) && ((2147483647LL - (long long )i) + (long long )z >= 0LL)) && ((2147483647LL - (long long )j) + (long long )z >= 0LL)) && ((2147483647LL - (long long )k) + (long long )z >= 0LL)) && ((4294967295LL - (long long )i) + (long long )j >= 0LL)) && ((4294967295LL - (long long )i) + (long long )k >= 0LL)) && ((4294967295LL - (long long )j) + (long long )k >= 0LL)) && ((4294967295LL + (long long )i) - (long long )j >= 0LL)) && ((4294967295LL + (long long )i) - (long long )k >= 0LL)) && ((4294967295LL + (long long )j) - (long long )k >= 0LL)) && ((6442450943LL + (long long )i) - (long long )z >= 0LL)) && ((6442450943LL + (long long )j) - (long long )z >= 0LL)) && ((6442450943LL + (long long )k) - (long long )z >= 0LL)) && ((4294967294LL - (long long )i) - (long long )j >= 0LL)) && ((4294967294LL - (long long )i) - (long long )k >= 0LL)) && ((4294967294LL - (long long )j) - (long long )k >= 0LL)) && ((6442450942LL - (long long )i) - (long long )z >= 0LL)) && ((6442450942LL - (long long )j) - (long long )z >= 0LL)) && ((6442450942LL - (long long )k) - (long long )z >= 0LL) [2024-02-07 19:23:18,558 INFO L76 edCorrectnessWitness]: Location invariant before [L691-L691] ((((((((0 <= i) && (1U <= x)) && (2U <= y)) && ((-1LL + (long long )i) + (long long )j >= 0LL)) && ((-1LL - (long long )i) + (long long )j >= 0LL)) && (x != 0U)) && (y != 0U)) && (z != 0U)) && ((((((((((i <= 2147483646 && k != 1) && (((k != 2 && (((k != 3 && (((k != 4 && (((k != 5 && (((k != 6 && (((k != 7 && (((k != 8 && (((k != 9 && (((((((10 <= k && 11U <= z) && (-11LL + (long long )j) + (long long )k >= 0LL) && (-10LL + (long long )i) + (long long )k >= 0LL) && (-10LL - (long long )i) + (long long )k >= 0LL) && (-9LL - (long long )j) + (long long )k >= 0LL) && (9LL + (long long )j) - (long long )k >= 0LL) || ((((((((((((((((((((24 <= k && 25U <= z) && (-25LL + (long long )j) + (long long )k >= 0LL) && (-24LL + (long long )i) + (long long )k >= 0LL) && (-24LL - (long long )i) + (long long )k >= 0LL) && (-23LL - (long long )j) + (long long )k >= 0LL) && (23LL + (long long )j) - (long long )k >= 0LL) && k != 10) && k != 11) && k != 12) && k != 13) && k != 14) && k != 15) && k != 16) && k != 17) && k != 18) && k != 19) && k != 20) && k != 21) && k != 22) && k != 23))) || ((((((9 <= k && 10U <= z) && (-10LL + (long long )j) + (long long )k >= 0LL) && (-9LL + (long long )i) + (long long )k >= 0LL) && (-9LL - (long long )i) + (long long )k >= 0LL) && (-8LL - (long long )j) + (long long )k >= 0LL) && (8LL + (long long )j) - (long long )k >= 0LL)) || ((((((((((((((((((((23 <= k && 24U <= z) && (-24LL + (long long )j) + (long long )k >= 0LL) && (-23LL + (long long )i) + (long long )k >= 0LL) && (-23LL - (long long )i) + (long long )k >= 0LL) && (-22LL - (long long )j) + (long long )k >= 0LL) && (22LL + (long long )j) - (long long )k >= 0LL) && k != 9) && k != 10) && k != 11) && k != 12) && k != 13) && k != 14) && k != 15) && k != 16) && k != 17) && k != 18) && k != 19) && k != 20) && k != 21) && k != 22))) || ((((((8 <= k && 9U <= z) && (-9LL + (long long )j) + (long long )k >= 0LL) && (-8LL + (long long )i) + (long long )k >= 0LL) && (-8LL - (long long )i) + (long long )k >= 0LL) && (-7LL - (long long )j) + (long long )k >= 0LL) && (7LL + (long long )j) - (long long )k >= 0LL)) || ((((((((((((((((((((22 <= k && 23U <= z) && (-23LL + (long long )j) + (long long )k >= 0LL) && (-22LL + (long long )i) + (long long )k >= 0LL) && (-22LL - (long long )i) + (long long )k >= 0LL) && (-21LL - (long long )j) + (long long )k >= 0LL) && (21LL + (long long )j) - (long long )k >= 0LL) && k != 8) && k != 9) && k != 10) && k != 11) && k != 12) && k != 13) && k != 14) && k != 15) && k != 16) && k != 17) && k != 18) && k != 19) && k != 20) && k != 21))) || ((((((7 <= k && 8U <= z) && (-8LL + (long long )j) + (long long )k >= 0LL) && (-7LL + (long long )i) + (long long )k >= 0LL) && (-7LL - (long long )i) + (long long )k >= 0LL) && (-6LL - (long long )j) + (long long )k >= 0LL) && (6LL + (long long )j) - (long long )k >= 0LL)) || ((((((((((((((((((((21 <= k && 22U <= z) && (-22LL + (long long )j) + (long long )k >= 0LL) && (-21LL + (long long )i) + (long long )k >= 0LL) && (-21LL - (long long )i) + (long long )k >= 0LL) && (-20LL - (long long )j) + (long long )k >= 0LL) && (20LL + (long long )j) - (long long )k >= 0LL) && k != 7) && k != 8) && k != 9) && k != 10) && k != 11) && k != 12) && k != 13) && k != 14) && k != 15) && k != 16) && k != 17) && k != 18) && k != 19) && k != 20))) || ((((((6 <= k && 7U <= z) && (-7LL + (long long )j) + (long long )k >= 0LL) && (-6LL + (long long )i) + (long long )k >= 0LL) && (-6LL - (long long )i) + (long long )k >= 0LL) && (-5LL - (long long )j) + (long long )k >= 0LL) && (5LL + (long long )j) - (long long )k >= 0LL)) || ((((((((((((((((((((20 <= k && 21U <= z) && (-21LL + (long long )j) + (long long )k >= 0LL) && (-20LL + (long long )i) + (long long )k >= 0LL) && (-20LL - (long long )i) + (long long )k >= 0LL) && (-19LL - (long long )j) + (long long )k >= 0LL) && (19LL + (long long )j) - (long long )k >= 0LL) && k != 6) && k != 7) && k != 8) && k != 9) && k != 10) && k != 11) && k != 12) && k != 13) && k != 14) && k != 15) && k != 16) && k != 17) && k != 18) && k != 19))) || ((((((5 <= k && 6U <= z) && (-6LL + (long long )j) + (long long )k >= 0LL) && (-5LL + (long long )i) + (long long )k >= 0LL) && (-5LL - (long long )i) + (long long )k >= 0LL) && (-4LL - (long long )j) + (long long )k >= 0LL) && (4LL + (long long )j) - (long long )k >= 0LL)) || ((((((((((((((((((((19 <= k && 20U <= z) && (-20LL + (long long )j) + (long long )k >= 0LL) && (-19LL + (long long )i) + (long long )k >= 0LL) && (-19LL - (long long )i) + (long long )k >= 0LL) && (-18LL - (long long )j) + (long long )k >= 0LL) && (18LL + (long long )j) - (long long )k >= 0LL) && k != 5) && k != 6) && k != 7) && k != 8) && k != 9) && k != 10) && k != 11) && k != 12) && k != 13) && k != 14) && k != 15) && k != 16) && k != 17) && k != 18))) || ((((((4 <= k && 5U <= z) && (-5LL + (long long )j) + (long long )k >= 0LL) && (-4LL + (long long )i) + (long long )k >= 0LL) && (-4LL - (long long )i) + (long long )k >= 0LL) && (-3LL - (long long )j) + (long long )k >= 0LL) && (3LL + (long long )j) - (long long )k >= 0LL)) || ((((((((((((((((((((18 <= k && 19U <= z) && (-19LL + (long long )j) + (long long )k >= 0LL) && (-18LL + (long long )i) + (long long )k >= 0LL) && (-18LL - (long long )i) + (long long )k >= 0LL) && (-17LL - (long long )j) + (long long )k >= 0LL) && (17LL + (long long )j) - (long long )k >= 0LL) && k != 4) && k != 5) && k != 6) && k != 7) && k != 8) && k != 9) && k != 10) && k != 11) && k != 12) && k != 13) && k != 14) && k != 15) && k != 16) && k != 17))) || ((((((3 <= k && 4U <= z) && (-4LL + (long long )j) + (long long )k >= 0LL) && (-3LL + (long long )i) + (long long )k >= 0LL) && (-3LL - (long long )i) + (long long )k >= 0LL) && (-2LL - (long long )j) + (long long )k >= 0LL) && (2LL + (long long )j) - (long long )k >= 0LL)) || ((((((((((((((((((((17 <= k && 18U <= z) && (-18LL + (long long )j) + (long long )k >= 0LL) && (-17LL + (long long )i) + (long long )k >= 0LL) && (-17LL - (long long )i) + (long long )k >= 0LL) && (-16LL - (long long )j) + (long long )k >= 0LL) && (16LL + (long long )j) - (long long )k >= 0LL) && k != 3) && k != 4) && k != 5) && k != 6) && k != 7) && k != 8) && k != 9) && k != 10) && k != 11) && k != 12) && k != 13) && k != 14) && k != 15) && k != 16))) || ((((((2 <= k && 3U <= z) && (-3LL + (long long )j) + (long long )k >= 0LL) && (-2LL + (long long )i) + (long long )k >= 0LL) && (-2LL - (long long )i) + (long long )k >= 0LL) && (-1LL - (long long )j) + (long long )k >= 0LL) && (1LL + (long long )j) - (long long )k >= 0LL)) || ((((((((((((((((((((16 <= k && 17U <= z) && (-17LL + (long long )j) + (long long )k >= 0LL) && (-16LL + (long long )i) + (long long )k >= 0LL) && (-16LL - (long long )i) + (long long )k >= 0LL) && (-15LL - (long long )j) + (long long )k >= 0LL) && (15LL + (long long )j) - (long long )k >= 0LL) && k != 2) && k != 3) && k != 4) && k != 5) && k != 6) && k != 7) && k != 8) && k != 9) && k != 10) && k != 11) && k != 12) && k != 13) && k != 14) && k != 15))) || ((((((((1 <= k && 2U <= z) && (-2LL + (long long )j) + (long long )k >= 0LL) && (-1LL + (long long )i) + (long long )k >= 0LL) && (-1LL - (long long )i) + (long long )k >= 0LL) && (0LL - (long long )j) + (long long )k >= 0LL) && (long long )j - (long long )k >= 0LL) && j == k) && k != 0)) || (((((((((((((((((((((15 <= k && 16U <= z) && i <= 2147483646) && (-16LL + (long long )j) + (long long )k >= 0LL) && (-15LL + (long long )i) + (long long )k >= 0LL) && (-15LL - (long long )i) + (long long )k >= 0LL) && (-14LL - (long long )j) + (long long )k >= 0LL) && (14LL + (long long )j) - (long long )k >= 0LL) && k != 1) && k != 2) && k != 3) && k != 4) && k != 5) && k != 6) && k != 7) && k != 8) && k != 9) && k != 10) && k != 11) && k != 12) && k != 13) && k != 14)) || ((((((((((((((((((((14 <= k && 15U <= z) && i <= 2147483646) && (-15LL + (long long )j) + (long long )k >= 0LL) && (-14LL + (long long )i) + (long long )k >= 0LL) && (-14LL - (long long )i) + (long long )k >= 0LL) && (-13LL - (long long )j) + (long long )k >= 0LL) && (13LL + (long long )j) - (long long )k >= 0LL) && k != 1) && k != 2) && k != 3) && k != 4) && k != 5) && k != 6) && k != 7) && k != 8) && k != 9) && k != 10) && k != 11) && k != 12) && k != 13)) || (((((((((((((((((((13 <= k && 14U <= z) && i <= 2147483646) && (-14LL + (long long )j) + (long long )k >= 0LL) && (-13LL + (long long )i) + (long long )k >= 0LL) && (-13LL - (long long )i) + (long long )k >= 0LL) && (-12LL - (long long )j) + (long long )k >= 0LL) && (12LL + (long long )j) - (long long )k >= 0LL) && k != 1) && k != 2) && k != 3) && k != 4) && k != 5) && k != 6) && k != 7) && k != 8) && k != 9) && k != 10) && k != 11) && k != 12)) || ((((((((((((((((((12 <= k && 13U <= z) && i <= 2147483646) && (-13LL + (long long )j) + (long long )k >= 0LL) && (-12LL + (long long )i) + (long long )k >= 0LL) && (-12LL - (long long )i) + (long long )k >= 0LL) && (-11LL - (long long )j) + (long long )k >= 0LL) && (11LL + (long long )j) - (long long )k >= 0LL) && k != 1) && k != 2) && k != 3) && k != 4) && k != 5) && k != 6) && k != 7) && k != 8) && k != 9) && k != 10) && k != 11)) || (((((((((((((((((((((((((((((((26 <= k && 27U <= z) && i <= 2147483646) && (-27LL + (long long )j) + (long long )k >= 0LL) && (-26LL + (long long )i) + (long long )k >= 0LL) && (-26LL - (long long )i) + (long long )k >= 0LL) && (-25LL - (long long )j) + (long long )k >= 0LL) && k != 1) && k != 2) && k != 3) && k != 4) && k != 5) && k != 6) && k != 7) && k != 8) && k != 9) && k != 10) && k != 11) && k != 12) && k != 13) && k != 14) && k != 15) && k != 16) && k != 17) && k != 18) && k != 19) && k != 20) && k != 21) && k != 22) && k != 23) && k != 24) && k != 25)) || (((((((((((((((((11 <= k && 12U <= z) && i <= 2147483646) && (-12LL + (long long )j) + (long long )k >= 0LL) && (-11LL + (long long )i) + (long long )k >= 0LL) && (-11LL - (long long )i) + (long long )k >= 0LL) && (-10LL - (long long )j) + (long long )k >= 0LL) && (10LL + (long long )j) - (long long )k >= 0LL) && k != 1) && k != 2) && k != 3) && k != 4) && k != 5) && k != 6) && k != 7) && k != 8) && k != 9) && k != 10)) || (((((((((((((((((((((((((((((((25 <= k && 26U <= z) && i <= 2147483646) && (-26LL + (long long )j) + (long long )k >= 0LL) && (-25LL + (long long )i) + (long long )k >= 0LL) && (-25LL - (long long )i) + (long long )k >= 0LL) && (-24LL - (long long )j) + (long long )k >= 0LL) && (24LL + (long long )j) - (long long )k >= 0LL) && k != 1) && k != 2) && k != 3) && k != 4) && k != 5) && k != 6) && k != 7) && k != 8) && k != 9) && k != 10) && k != 11) && k != 12) && k != 13) && k != 14) && k != 15) && k != 16) && k != 17) && k != 18) && k != 19) && k != 20) && k != 21) && k != 22) && k != 23) && k != 24)) [2024-02-07 19:23:18,559 INFO L76 edCorrectnessWitness]: Location invariant after [L687-L687] ((((((((((((((2147483647LL + (long long )i) + (long long )j >= 0LL) && ((2147483647LL + (long long )j) + (long long )k >= 0LL)) && ((4294967296LL + (long long )i) + (long long )k >= 0LL)) && ((2147483646LL - (long long )i) + (long long )j >= 0LL)) && ((2147483649LL - (long long )j) + (long long )k >= 0LL)) && ((4294967295LL - (long long )i) + (long long )k >= 0LL)) && ((2147483646LL + (long long )j) - (long long )k >= 0LL)) && ((2147483649LL + (long long )i) - (long long )j >= 0LL)) && ((4294967295LL + (long long )i) - (long long )k >= 0LL)) && ((2147483648LL - (long long )i) - (long long )j >= 0LL)) && ((2147483648LL - (long long )j) - (long long )k >= 0LL)) && ((4294967294LL - (long long )i) - (long long )k >= 0LL)) && (1 == j)) && (j == 1) [2024-02-07 19:23:18,559 INFO L76 edCorrectnessWitness]: Location invariant before [L687-L687] ((((((((((((4294967296LL + (long long )i) + (long long )j >= 0LL) && ((4294967296LL + (long long )i) + (long long )k >= 0LL)) && ((4294967296LL + (long long )j) + (long long )k >= 0LL)) && ((4294967295LL - (long long )i) + (long long )j >= 0LL)) && ((4294967295LL - (long long )i) + (long long )k >= 0LL)) && ((4294967295LL - (long long )j) + (long long )k >= 0LL)) && ((4294967295LL + (long long )i) - (long long )j >= 0LL)) && ((4294967295LL + (long long )i) - (long long )k >= 0LL)) && ((4294967295LL + (long long )j) - (long long )k >= 0LL)) && ((4294967294LL - (long long )i) - (long long )j >= 0LL)) && ((4294967294LL - (long long )i) - (long long )k >= 0LL)) && ((4294967294LL - (long long )j) - (long long )k >= 0LL) [2024-02-07 19:23:18,559 INFO L76 edCorrectnessWitness]: Location invariant before [L695-L695] (((((-2LL + (long long )j) + (long long )k >= 0LL) && ((-1LL + (long long )i) + (long long )j >= 0LL)) && ((-1LL + (long long )i) + (long long )k >= 0LL)) && ((0LL - (long long )i) + (long long )j >= 0LL)) && (((1 <= k && ((y <= 2147483648U && (((1U <= x && x != 0U) && ((((3U <= y && x <= 2147483646U) && (-2LL - (long long )x) + (long long )y >= 0LL) && y != 0U) || x <= 2147483647U)) || x <= 2147483647U)) || ((0 <= i && 1 <= j) && x <= 2147483647U))) || (1 <= j && x <= 2147483647U)) || ((0 <= i && 1 <= k) && x <= 2147483647U)) [2024-02-07 19:23:18,560 INFO L76 edCorrectnessWitness]: Location invariant after [L686-L686] ((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )i) + (long long )y >= 0LL) && ((2147483648LL + (long long )i) + (long long )z >= 0LL)) && ((2147483648LL + (long long )j) + (long long )y >= 0LL)) && ((2147483648LL + (long long )j) + (long long )z >= 0LL)) && ((2147483648LL + (long long )k) + (long long )y >= 0LL)) && ((2147483648LL + (long long )k) + (long long )z >= 0LL)) && ((4294967296LL + (long long )i) + (long long )j >= 0LL)) && ((4294967296LL + (long long )i) + (long long )k >= 0LL)) && ((4294967296LL + (long long )j) + (long long )k >= 0LL)) && ((2147483647LL - (long long )i) + (long long )y >= 0LL)) && ((2147483647LL - (long long )i) + (long long )z >= 0LL)) && ((2147483647LL - (long long )j) + (long long )y >= 0LL)) && ((2147483647LL - (long long )j) + (long long )z >= 0LL)) && ((2147483647LL - (long long )k) + (long long )y >= 0LL)) && ((2147483647LL - (long long )k) + (long long )z >= 0LL)) && ((4294967295LL - (long long )y) + (long long )z >= 0LL)) && ((4294967295LL - (long long )i) + (long long )j >= 0LL)) && ((4294967295LL - (long long )i) + (long long )k >= 0LL)) && ((4294967295LL - (long long )j) + (long long )k >= 0LL)) && ((long long )y + (long long )z >= 0LL)) && ((4294967295LL + (long long )y) - (long long )z >= 0LL)) && ((4294967295LL + (long long )i) - (long long )j >= 0LL)) && ((4294967295LL + (long long )i) - (long long )k >= 0LL)) && ((4294967295LL + (long long )j) - (long long )k >= 0LL)) && ((6442450943LL + (long long )i) - (long long )y >= 0LL)) && ((6442450943LL + (long long )i) - (long long )z >= 0LL)) && ((6442450943LL + (long long )j) - (long long )y >= 0LL)) && ((6442450943LL + (long long )j) - (long long )z >= 0LL)) && ((6442450943LL + (long long )k) - (long long )y >= 0LL)) && ((6442450943LL + (long long )k) - (long long )z >= 0LL)) && ((4294967294LL - (long long )i) - (long long )j >= 0LL)) && ((4294967294LL - (long long )i) - (long long )k >= 0LL)) && ((4294967294LL - (long long )j) - (long long )k >= 0LL)) && ((6442450942LL - (long long )i) - (long long )y >= 0LL)) && ((6442450942LL - (long long )i) - (long long )z >= 0LL)) && ((6442450942LL - (long long )j) - (long long )y >= 0LL)) && ((6442450942LL - (long long )j) - (long long )z >= 0LL)) && ((6442450942LL - (long long )k) - (long long )y >= 0LL)) && ((6442450942LL - (long long )k) - (long long )z >= 0LL)) && ((8589934590LL - (long long )y) - (long long )z >= 0LL) [2024-02-07 19:23:18,560 INFO L76 edCorrectnessWitness]: Location invariant before [L686-L686] ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )i) + (long long )x >= 0LL) && ((2147483648LL + (long long )i) + (long long )y >= 0LL)) && ((2147483648LL + (long long )i) + (long long )z >= 0LL)) && ((2147483648LL + (long long )j) + (long long )x >= 0LL)) && ((2147483648LL + (long long )j) + (long long )y >= 0LL)) && ((2147483648LL + (long long )j) + (long long )z >= 0LL)) && ((2147483648LL + (long long )k) + (long long )x >= 0LL)) && ((2147483648LL + (long long )k) + (long long )y >= 0LL)) && ((2147483648LL + (long long )k) + (long long )z >= 0LL)) && ((4294967296LL + (long long )i) + (long long )j >= 0LL)) && ((4294967296LL + (long long )i) + (long long )k >= 0LL)) && ((4294967296LL + (long long )j) + (long long )k >= 0LL)) && ((2147483647LL - (long long )i) + (long long )x >= 0LL)) && ((2147483647LL - (long long )i) + (long long )y >= 0LL)) && ((2147483647LL - (long long )i) + (long long )z >= 0LL)) && ((2147483647LL - (long long )j) + (long long )x >= 0LL)) && ((2147483647LL - (long long )j) + (long long )y >= 0LL)) && ((2147483647LL - (long long )j) + (long long )z >= 0LL)) && ((2147483647LL - (long long )k) + (long long )x >= 0LL)) && ((2147483647LL - (long long )k) + (long long )y >= 0LL)) && ((2147483647LL - (long long )k) + (long long )z >= 0LL)) && ((4294967295LL - (long long )x) + (long long )y >= 0LL)) && ((4294967295LL - (long long )x) + (long long )z >= 0LL)) && ((4294967295LL - (long long )y) + (long long )z >= 0LL)) && ((4294967295LL - (long long )i) + (long long )j >= 0LL)) && ((4294967295LL - (long long )i) + (long long )k >= 0LL)) && ((4294967295LL - (long long )j) + (long long )k >= 0LL)) && ((long long )x + (long long )y >= 0LL)) && ((long long )x + (long long )z >= 0LL)) && ((long long )y + (long long )z >= 0LL)) && ((4294967295LL + (long long )x) - (long long )y >= 0LL)) && ((4294967295LL + (long long )x) - (long long )z >= 0LL)) && ((4294967295LL + (long long )y) - (long long )z >= 0LL)) && ((4294967295LL + (long long )i) - (long long )j >= 0LL)) && ((4294967295LL + (long long )i) - (long long )k >= 0LL)) && ((4294967295LL + (long long )j) - (long long )k >= 0LL)) && ((6442450943LL + (long long )i) - (long long )x >= 0LL)) && ((6442450943LL + (long long )i) - (long long )y >= 0LL)) && ((6442450943LL + (long long )i) - (long long )z >= 0LL)) && ((6442450943LL + (long long )j) - (long long )x >= 0LL)) && ((6442450943LL + (long long )j) - (long long )y >= 0LL)) && ((6442450943LL + (long long )j) - (long long )z >= 0LL)) && ((6442450943LL + (long long )k) - (long long )x >= 0LL)) && ((6442450943LL + (long long )k) - (long long )y >= 0LL)) && ((6442450943LL + (long long )k) - (long long )z >= 0LL)) && ((4294967294LL - (long long )i) - (long long )j >= 0LL)) && ((4294967294LL - (long long )i) - (long long )k >= 0LL)) && ((4294967294LL - (long long )j) - (long long )k >= 0LL)) && ((6442450942LL - (long long )i) - (long long )x >= 0LL)) && ((6442450942LL - (long long )i) - (long long )y >= 0LL)) && ((6442450942LL - (long long )i) - (long long )z >= 0LL)) && ((6442450942LL - (long long )j) - (long long )x >= 0LL)) && ((6442450942LL - (long long )j) - (long long )y >= 0LL)) && ((6442450942LL - (long long )j) - (long long )z >= 0LL)) && ((6442450942LL - (long long )k) - (long long )x >= 0LL)) && ((6442450942LL - (long long )k) - (long long )y >= 0LL)) && ((6442450942LL - (long long )k) - (long long )z >= 0LL)) && ((8589934590LL - (long long )x) - (long long )y >= 0LL)) && ((8589934590LL - (long long )x) - (long long )z >= 0LL)) && ((8589934590LL - (long long )y) - (long long )z >= 0LL) [2024-02-07 19:23:18,560 INFO L76 edCorrectnessWitness]: Location invariant after [L686-L686] ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )i) + (long long )x >= 0LL) && ((2147483648LL + (long long )i) + (long long )y >= 0LL)) && ((2147483648LL + (long long )i) + (long long )z >= 0LL)) && ((2147483648LL + (long long )j) + (long long )x >= 0LL)) && ((2147483648LL + (long long )j) + (long long )y >= 0LL)) && ((2147483648LL + (long long )j) + (long long )z >= 0LL)) && ((2147483648LL + (long long )k) + (long long )x >= 0LL)) && ((2147483648LL + (long long )k) + (long long )y >= 0LL)) && ((2147483648LL + (long long )k) + (long long )z >= 0LL)) && ((4294967296LL + (long long )i) + (long long )j >= 0LL)) && ((4294967296LL + (long long )i) + (long long )k >= 0LL)) && ((4294967296LL + (long long )j) + (long long )k >= 0LL)) && ((2147483647LL - (long long )i) + (long long )x >= 0LL)) && ((2147483647LL - (long long )i) + (long long )y >= 0LL)) && ((2147483647LL - (long long )i) + (long long )z >= 0LL)) && ((2147483647LL - (long long )j) + (long long )x >= 0LL)) && ((2147483647LL - (long long )j) + (long long )y >= 0LL)) && ((2147483647LL - (long long )j) + (long long )z >= 0LL)) && ((2147483647LL - (long long )k) + (long long )x >= 0LL)) && ((2147483647LL - (long long )k) + (long long )y >= 0LL)) && ((2147483647LL - (long long )k) + (long long )z >= 0LL)) && ((4294967295LL - (long long )x) + (long long )y >= 0LL)) && ((4294967295LL - (long long )x) + (long long )z >= 0LL)) && ((4294967295LL - (long long )y) + (long long )z >= 0LL)) && ((4294967295LL - (long long )i) + (long long )j >= 0LL)) && ((4294967295LL - (long long )i) + (long long )k >= 0LL)) && ((4294967295LL - (long long )j) + (long long )k >= 0LL)) && ((long long )x + (long long )y >= 0LL)) && ((long long )x + (long long )z >= 0LL)) && ((long long )y + (long long )z >= 0LL)) && ((4294967295LL + (long long )x) - (long long )y >= 0LL)) && ((4294967295LL + (long long )x) - (long long )z >= 0LL)) && ((4294967295LL + (long long )y) - (long long )z >= 0LL)) && ((4294967295LL + (long long )i) - (long long )j >= 0LL)) && ((4294967295LL + (long long )i) - (long long )k >= 0LL)) && ((4294967295LL + (long long )j) - (long long )k >= 0LL)) && ((6442450943LL + (long long )i) - (long long )x >= 0LL)) && ((6442450943LL + (long long )i) - (long long )y >= 0LL)) && ((6442450943LL + (long long )i) - (long long )z >= 0LL)) && ((6442450943LL + (long long )j) - (long long )x >= 0LL)) && ((6442450943LL + (long long )j) - (long long )y >= 0LL)) && ((6442450943LL + (long long )j) - (long long )z >= 0LL)) && ((6442450943LL + (long long )k) - (long long )x >= 0LL)) && ((6442450943LL + (long long )k) - (long long )y >= 0LL)) && ((6442450943LL + (long long )k) - (long long )z >= 0LL)) && ((4294967294LL - (long long )i) - (long long )j >= 0LL)) && ((4294967294LL - (long long )i) - (long long )k >= 0LL)) && ((4294967294LL - (long long )j) - (long long )k >= 0LL)) && ((6442450942LL - (long long )i) - (long long )x >= 0LL)) && ((6442450942LL - (long long )i) - (long long )y >= 0LL)) && ((6442450942LL - (long long )i) - (long long )z >= 0LL)) && ((6442450942LL - (long long )j) - (long long )x >= 0LL)) && ((6442450942LL - (long long )j) - (long long )y >= 0LL)) && ((6442450942LL - (long long )j) - (long long )z >= 0LL)) && ((6442450942LL - (long long )k) - (long long )x >= 0LL)) && ((6442450942LL - (long long )k) - (long long )y >= 0LL)) && ((6442450942LL - (long long )k) - (long long )z >= 0LL)) && ((8589934590LL - (long long )x) - (long long )y >= 0LL)) && ((8589934590LL - (long long )x) - (long long )z >= 0LL)) && ((8589934590LL - (long long )y) - (long long )z >= 0LL) [2024-02-07 19:23:18,560 INFO L76 edCorrectnessWitness]: Location invariant after [L687-L687] ((((((((((((4294967296LL + (long long )i) + (long long )j >= 0LL) && ((4294967296LL + (long long )i) + (long long )k >= 0LL)) && ((4294967296LL + (long long )j) + (long long )k >= 0LL)) && ((4294967295LL - (long long )i) + (long long )j >= 0LL)) && ((4294967295LL - (long long )i) + (long long )k >= 0LL)) && ((4294967295LL - (long long )j) + (long long )k >= 0LL)) && ((4294967295LL + (long long )i) - (long long )j >= 0LL)) && ((4294967295LL + (long long )i) - (long long )k >= 0LL)) && ((4294967295LL + (long long )j) - (long long )k >= 0LL)) && ((4294967294LL - (long long )i) - (long long )j >= 0LL)) && ((4294967294LL - (long long )i) - (long long )k >= 0LL)) && ((4294967294LL - (long long )j) - (long long )k >= 0LL) [2024-02-07 19:23:18,606 INFO L181 MainTranslator]: Built tables and reachable declarations [2024-02-07 19:23:18,919 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/28_buggy_simple_loop1_vf.i[30287,30300] [2024-02-07 19:23:18,927 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:23:18,938 INFO L206 MainTranslator]: Completed pre-run [2024-02-07 19:23:18,987 WARN L423 MainDispatcher]: Unable to annotate unsigned int with a witness entry [2024-02-07 19:23:18,988 WARN L423 MainDispatcher]: Unable to annotate x=__VERIFIER_nondet_uint() with a witness entry [2024-02-07 19:23:18,988 WARN L423 MainDispatcher]: Unable to annotate y=__VERIFIER_nondet_uint() with a witness entry [2024-02-07 19:23:18,989 WARN L423 MainDispatcher]: Unable to annotate z=__VERIFIER_nondet_uint() with a witness entry [2024-02-07 19:23:18,989 WARN L423 MainDispatcher]: Unable to annotate i with a witness entry [2024-02-07 19:23:18,990 WARN L423 MainDispatcher]: Unable to annotate j=1 with a witness entry [2024-02-07 19:23:18,991 WARN L423 MainDispatcher]: Unable to annotate k=1 with a witness entry Start Parsing Local Start Parsing Local [2024-02-07 19:23:19,207 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/28_buggy_simple_loop1_vf.i[30287,30300] Start Parsing Local Start Parsing Local [2024-02-07 19:23:19,218 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:23:19,253 INFO L211 MainTranslator]: Completed translation [2024-02-07 19:23:19,254 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:23:19 WrapperNode [2024-02-07 19:23:19,254 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 19:23:19,256 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 19:23:19,257 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 19:23:19,257 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 19:23:19,263 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 07.02 07:23:19" (1/1) ... [2024-02-07 19:23:19,295 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 07.02 07:23:19" (1/1) ... [2024-02-07 19:23:19,308 INFO L138 Inliner]: procedures = 167, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2024-02-07 19:23:19,309 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 19:23:19,310 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 19:23:19,310 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 19:23:19,310 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 19:23:19,319 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:23:19" (1/1) ... [2024-02-07 19:23:19,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:23:19" (1/1) ... [2024-02-07 19:23:19,322 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:23:19" (1/1) ... [2024-02-07 19:23:19,340 INFO L175 MemorySlicer]: Split 3 memory accesses to 2 slices as follows [2, 1]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-02-07 19:23:19,342 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:23:19" (1/1) ... [2024-02-07 19:23:19,342 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:23:19" (1/1) ... [2024-02-07 19:23:19,362 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:23:19" (1/1) ... [2024-02-07 19:23:19,373 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:23:19" (1/1) ... [2024-02-07 19:23:19,377 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:23:19" (1/1) ... [2024-02-07 19:23:19,380 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:23:19" (1/1) ... [2024-02-07 19:23:19,384 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 19:23:19,389 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 19:23:19,389 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 19:23:19,389 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 19:23:19,390 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:23:19" (1/1) ... [2024-02-07 19:23:19,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:23:19,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 19:23:19,421 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) [2024-02-07 19:23:19,431 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 [2024-02-07 19:23:19,466 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-02-07 19:23:19,467 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-02-07 19:23:19,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 19:23:19,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 19:23:19,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 19:23:19,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 19:23:19,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 19:23:19,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 19:23:19,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 19:23:19,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 19:23:19,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 19:23:19,470 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 19:23:19,606 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 19:23:19,608 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 19:23:20,015 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 19:23:20,016 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 19:23:20,077 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 19:23:20,077 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-02-07 19:23:20,078 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:23:20 BoogieIcfgContainer [2024-02-07 19:23:20,079 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 19:23:20,081 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 19:23:20,081 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 19:23:20,084 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 19:23:20,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 07:23:18" (1/4) ... [2024-02-07 19:23:20,086 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2940bf46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:23:20, skipping insertion in model container [2024-02-07 19:23:20,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:23:18" (2/4) ... [2024-02-07 19:23:20,086 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2940bf46 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:23:20, skipping insertion in model container [2024-02-07 19:23:20,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:23:19" (3/4) ... [2024-02-07 19:23:20,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2940bf46 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:23:20, skipping insertion in model container [2024-02-07 19:23:20,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:23:20" (4/4) ... [2024-02-07 19:23:20,088 INFO L112 eAbstractionObserver]: Analyzing ICFG 28_buggy_simple_loop1_vf.i [2024-02-07 19:23:20,104 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 19:23:20,104 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-02-07 19:23:20,104 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 19:23:20,228 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-07 19:23:20,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 25 places, 27 transitions, 58 flow [2024-02-07 19:23:20,297 INFO L124 PetriNetUnfolderBase]: 5/29 cut-off events. [2024-02-07 19:23:20,297 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:23:20,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 29 events. 5/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 61 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2024-02-07 19:23:20,300 INFO L82 GeneralOperation]: Start removeDead. Operand has 25 places, 27 transitions, 58 flow [2024-02-07 19:23:20,303 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 27 transitions, 58 flow [2024-02-07 19:23:20,317 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 19:23:20,324 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;@7f465280, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 19:23:20,324 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-02-07 19:23:20,331 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 19:23:20,332 INFO L124 PetriNetUnfolderBase]: 2/13 cut-off events. [2024-02-07 19:23:20,332 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:23:20,332 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:23:20,333 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-07 19:23:20,333 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-02-07 19:23:20,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:23:20,339 INFO L85 PathProgramCache]: Analyzing trace with hash 2085740643, now seen corresponding path program 1 times [2024-02-07 19:23:20,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:23:20,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068228040] [2024-02-07 19:23:20,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:23:20,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:23:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:23:20,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:23:20,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:23:20,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068228040] [2024-02-07 19:23:20,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068228040] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:23:20,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:23:20,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:23:20,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581136451] [2024-02-07 19:23:20,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:23:20,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:23:20,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:23:20,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:23:20,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:23:20,926 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2024-02-07 19:23:20,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 27 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2024-02-07 19:23:20,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:23:20,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2024-02-07 19:23:20,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:23:21,032 INFO L124 PetriNetUnfolderBase]: 52/147 cut-off events. [2024-02-07 19:23:21,033 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:23:21,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 147 events. 52/147 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 625 event pairs, 20 based on Foata normal form. 12/141 useless extension candidates. Maximal degree in co-relation 246. Up to 74 conditions per place. [2024-02-07 19:23:21,036 INFO L140 encePairwiseOnDemand]: 16/27 looper letters, 26 selfloop transitions, 5 changer transitions 0/38 dead transitions. [2024-02-07 19:23:21,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 38 transitions, 142 flow [2024-02-07 19:23:21,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:23:21,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:23:21,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 68 transitions. [2024-02-07 19:23:21,047 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6296296296296297 [2024-02-07 19:23:21,049 INFO L175 Difference]: Start difference. First operand has 25 places, 27 transitions, 58 flow. Second operand 4 states and 68 transitions. [2024-02-07 19:23:21,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 38 transitions, 142 flow [2024-02-07 19:23:21,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 38 transitions, 142 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-07 19:23:21,053 INFO L231 Difference]: Finished difference. Result has 29 places, 29 transitions, 94 flow [2024-02-07 19:23:21,055 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=29, PETRI_TRANSITIONS=29} [2024-02-07 19:23:21,058 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 4 predicate places. [2024-02-07 19:23:21,058 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 29 transitions, 94 flow [2024-02-07 19:23:21,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2024-02-07 19:23:21,059 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:23:21,059 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-02-07 19:23:21,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 19:23:21,059 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-02-07 19:23:21,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:23:21,060 INFO L85 PathProgramCache]: Analyzing trace with hash 2085733343, now seen corresponding path program 1 times [2024-02-07 19:23:21,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:23:21,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984636798] [2024-02-07 19:23:21,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:23:21,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:23:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 19:23:21,072 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-07 19:23:21,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 19:23:21,098 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-07 19:23:21,098 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-07 19:23:21,101 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-02-07 19:23:21,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 11 remaining) [2024-02-07 19:23:21,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 11 remaining) [2024-02-07 19:23:21,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 11 remaining) [2024-02-07 19:23:21,104 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 11 remaining) [2024-02-07 19:23:21,104 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2024-02-07 19:23:21,104 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 11 remaining) [2024-02-07 19:23:21,105 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 11 remaining) [2024-02-07 19:23:21,105 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 11 remaining) [2024-02-07 19:23:21,106 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 11 remaining) [2024-02-07 19:23:21,106 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2024-02-07 19:23:21,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 19:23:21,107 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-02-07 19:23:21,110 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-02-07 19:23:21,111 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-02-07 19:23:21,218 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-07 19:23:21,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 49 transitions, 108 flow [2024-02-07 19:23:21,246 INFO L124 PetriNetUnfolderBase]: 10/54 cut-off events. [2024-02-07 19:23:21,246 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-02-07 19:23:21,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 54 events. 10/54 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 149 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 45. Up to 3 conditions per place. [2024-02-07 19:23:21,254 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 49 transitions, 108 flow [2024-02-07 19:23:21,256 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 49 transitions, 108 flow [2024-02-07 19:23:21,258 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 19:23:21,262 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;@7f465280, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 19:23:21,262 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-02-07 19:23:21,268 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 19:23:21,269 INFO L124 PetriNetUnfolderBase]: 2/14 cut-off events. [2024-02-07 19:23:21,269 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-02-07 19:23:21,269 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:23:21,269 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-07 19:23:21,269 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 13 more)] === [2024-02-07 19:23:21,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:23:21,270 INFO L85 PathProgramCache]: Analyzing trace with hash -758990845, now seen corresponding path program 1 times [2024-02-07 19:23:21,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:23:21,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343725557] [2024-02-07 19:23:21,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:23:21,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:23:21,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:23:21,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:23:21,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:23:21,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343725557] [2024-02-07 19:23:21,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343725557] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:23:21,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:23:21,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:23:21,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390844608] [2024-02-07 19:23:21,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:23:21,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:23:21,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:23:21,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:23:21,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:23:21,430 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-02-07 19:23:21,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 49 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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) [2024-02-07 19:23:21,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:23:21,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-02-07 19:23:21,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:23:21,944 INFO L124 PetriNetUnfolderBase]: 847/1728 cut-off events. [2024-02-07 19:23:21,944 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-02-07 19:23:21,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3006 conditions, 1728 events. 847/1728 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 11184 event pairs, 298 based on Foata normal form. 129/1497 useless extension candidates. Maximal degree in co-relation 1216. Up to 799 conditions per place. [2024-02-07 19:23:21,960 INFO L140 encePairwiseOnDemand]: 37/49 looper letters, 53 selfloop transitions, 5 changer transitions 0/77 dead transitions. [2024-02-07 19:23:21,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 77 transitions, 290 flow [2024-02-07 19:23:21,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:23:21,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:23:21,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2024-02-07 19:23:21,964 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7448979591836735 [2024-02-07 19:23:21,965 INFO L175 Difference]: Start difference. First operand has 44 places, 49 transitions, 108 flow. Second operand 4 states and 146 transitions. [2024-02-07 19:23:21,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 77 transitions, 290 flow [2024-02-07 19:23:21,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 77 transitions, 290 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-07 19:23:21,969 INFO L231 Difference]: Finished difference. Result has 48 places, 50 transitions, 142 flow [2024-02-07 19:23:21,970 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=142, PETRI_PLACES=48, PETRI_TRANSITIONS=50} [2024-02-07 19:23:21,971 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 4 predicate places. [2024-02-07 19:23:21,971 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 50 transitions, 142 flow [2024-02-07 19:23:21,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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) [2024-02-07 19:23:21,971 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:23:21,971 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:23:21,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-07 19:23:21,972 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 13 more)] === [2024-02-07 19:23:21,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:23:21,972 INFO L85 PathProgramCache]: Analyzing trace with hash 754215174, now seen corresponding path program 1 times [2024-02-07 19:23:21,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:23:21,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449570787] [2024-02-07 19:23:21,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:23:21,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:23:22,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:23:22,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:23:22,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:23:22,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449570787] [2024-02-07 19:23:22,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449570787] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:23:22,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:23:22,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-02-07 19:23:22,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701188612] [2024-02-07 19:23:22,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:23:22,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-02-07 19:23:22,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:23:22,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-02-07 19:23:22,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-02-07 19:23:22,679 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 49 [2024-02-07 19:23:22,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 50 transitions, 142 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) [2024-02-07 19:23:22,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:23:22,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 49 [2024-02-07 19:23:22,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:23:23,443 INFO L124 PetriNetUnfolderBase]: 1495/2666 cut-off events. [2024-02-07 19:23:23,444 INFO L125 PetriNetUnfolderBase]: For 223/226 co-relation queries the response was YES. [2024-02-07 19:23:23,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5501 conditions, 2666 events. 1495/2666 cut-off events. For 223/226 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 16302 event pairs, 334 based on Foata normal form. 0/2222 useless extension candidates. Maximal degree in co-relation 4336. Up to 838 conditions per place. [2024-02-07 19:23:23,460 INFO L140 encePairwiseOnDemand]: 41/49 looper letters, 89 selfloop transitions, 9 changer transitions 0/116 dead transitions. [2024-02-07 19:23:23,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 116 transitions, 508 flow [2024-02-07 19:23:23,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-02-07 19:23:23,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-02-07 19:23:23,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 207 transitions. [2024-02-07 19:23:23,465 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7040816326530612 [2024-02-07 19:23:23,465 INFO L175 Difference]: Start difference. First operand has 48 places, 50 transitions, 142 flow. Second operand 6 states and 207 transitions. [2024-02-07 19:23:23,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 116 transitions, 508 flow [2024-02-07 19:23:23,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 116 transitions, 504 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:23:23,470 INFO L231 Difference]: Finished difference. Result has 56 places, 55 transitions, 197 flow [2024-02-07 19:23:23,470 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=197, PETRI_PLACES=56, PETRI_TRANSITIONS=55} [2024-02-07 19:23:23,471 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 12 predicate places. [2024-02-07 19:23:23,471 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 55 transitions, 197 flow [2024-02-07 19:23:23,471 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) [2024-02-07 19:23:23,472 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:23:23,472 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:23:23,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-07 19:23:23,472 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 13 more)] === [2024-02-07 19:23:23,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:23:23,473 INFO L85 PathProgramCache]: Analyzing trace with hash 754215974, now seen corresponding path program 1 times [2024-02-07 19:23:23,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:23:23,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572368193] [2024-02-07 19:23:23,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:23:23,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:23:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:23:23,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:23:23,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:23:23,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572368193] [2024-02-07 19:23:23,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572368193] provided 0 perfect and 1 imperfect interpolant sequences [2024-02-07 19:23:23,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918063515] [2024-02-07 19:23:23,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:23:23,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-02-07 19:23:23,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 19:23:23,615 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) [2024-02-07 19:23:23,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-02-07 19:23:23,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:23:23,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2024-02-07 19:23:23,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-07 19:23:23,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:23:23,769 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-02-07 19:23:24,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:23:24,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918063515] provided 0 perfect and 2 imperfect interpolant sequences [2024-02-07 19:23:24,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-02-07 19:23:24,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-02-07 19:23:24,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182427893] [2024-02-07 19:23:24,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-02-07 19:23:24,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-02-07 19:23:24,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:23:24,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-02-07 19:23:24,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-02-07 19:23:24,169 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-02-07 19:23:24,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 55 transitions, 197 flow. Second operand has 14 states, 14 states have (on average 18.285714285714285) internal successors, (256), 14 states have internal predecessors, (256), 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) [2024-02-07 19:23:24,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:23:24,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-02-07 19:23:24,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:23:25,584 INFO L124 PetriNetUnfolderBase]: 2482/4232 cut-off events. [2024-02-07 19:23:25,585 INFO L125 PetriNetUnfolderBase]: For 561/561 co-relation queries the response was YES. [2024-02-07 19:23:25,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9582 conditions, 4232 events. 2482/4232 cut-off events. For 561/561 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 26243 event pairs, 280 based on Foata normal form. 294/4100 useless extension candidates. Maximal degree in co-relation 8698. Up to 646 conditions per place. [2024-02-07 19:23:25,614 INFO L140 encePairwiseOnDemand]: 36/49 looper letters, 236 selfloop transitions, 22 changer transitions 0/276 dead transitions. [2024-02-07 19:23:25,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 276 transitions, 1286 flow [2024-02-07 19:23:25,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-02-07 19:23:25,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-02-07 19:23:25,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 580 transitions. [2024-02-07 19:23:25,617 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6575963718820862 [2024-02-07 19:23:25,617 INFO L175 Difference]: Start difference. First operand has 56 places, 55 transitions, 197 flow. Second operand 18 states and 580 transitions. [2024-02-07 19:23:25,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 276 transitions, 1286 flow [2024-02-07 19:23:25,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 276 transitions, 1282 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:23:25,627 INFO L231 Difference]: Finished difference. Result has 82 places, 69 transitions, 359 flow [2024-02-07 19:23:25,627 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=359, PETRI_PLACES=82, PETRI_TRANSITIONS=69} [2024-02-07 19:23:25,628 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 38 predicate places. [2024-02-07 19:23:25,628 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 69 transitions, 359 flow [2024-02-07 19:23:25,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 18.285714285714285) internal successors, (256), 14 states have internal predecessors, (256), 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) [2024-02-07 19:23:25,628 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:23:25,628 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2024-02-07 19:23:25,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-02-07 19:23:25,843 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 [2024-02-07 19:23:25,844 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 13 more)] === [2024-02-07 19:23:25,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:23:25,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1068761316, now seen corresponding path program 1 times [2024-02-07 19:23:25,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:23:25,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567147960] [2024-02-07 19:23:25,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:23:25,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:23:25,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 19:23:25,860 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-07 19:23:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 19:23:25,867 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-07 19:23:25,867 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-07 19:23:25,868 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-02-07 19:23:25,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 16 remaining) [2024-02-07 19:23:25,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 16 remaining) [2024-02-07 19:23:25,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 16 remaining) [2024-02-07 19:23:25,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 16 remaining) [2024-02-07 19:23:25,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (10 of 16 remaining) [2024-02-07 19:23:25,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 16 remaining) [2024-02-07 19:23:25,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 16 remaining) [2024-02-07 19:23:25,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 16 remaining) [2024-02-07 19:23:25,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 16 remaining) [2024-02-07 19:23:25,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (5 of 16 remaining) [2024-02-07 19:23:25,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 16 remaining) [2024-02-07 19:23:25,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 16 remaining) [2024-02-07 19:23:25,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 16 remaining) [2024-02-07 19:23:25,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 16 remaining) [2024-02-07 19:23:25,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (0 of 16 remaining) [2024-02-07 19:23:25,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-07 19:23:25,871 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-02-07 19:23:25,871 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-02-07 19:23:25,872 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-02-07 19:23:25,975 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-07 19:23:25,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 71 transitions, 160 flow [2024-02-07 19:23:26,001 INFO L124 PetriNetUnfolderBase]: 15/79 cut-off events. [2024-02-07 19:23:26,002 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-02-07 19:23:26,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 79 events. 15/79 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 250 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 66. Up to 4 conditions per place. [2024-02-07 19:23:26,002 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 71 transitions, 160 flow [2024-02-07 19:23:26,004 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 71 transitions, 160 flow [2024-02-07 19:23:26,005 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 19:23:26,005 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;@7f465280, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 19:23:26,005 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-02-07 19:23:26,007 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 19:23:26,007 INFO L124 PetriNetUnfolderBase]: 2/14 cut-off events. [2024-02-07 19:23:26,007 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-02-07 19:23:26,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:23:26,007 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-07 19:23:26,008 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 18 more)] === [2024-02-07 19:23:26,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:23:26,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1342060142, now seen corresponding path program 1 times [2024-02-07 19:23:26,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:23:26,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147376785] [2024-02-07 19:23:26,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:23:26,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:23:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:23:26,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:23:26,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:23:26,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147376785] [2024-02-07 19:23:26,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147376785] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:23:26,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:23:26,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:23:26,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237336618] [2024-02-07 19:23:26,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:23:26,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:23:26,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:23:26,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:23:26,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:23:26,118 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 71 [2024-02-07 19:23:26,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 71 transitions, 160 flow. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 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) [2024-02-07 19:23:26,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:23:26,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 71 [2024-02-07 19:23:26,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:23:28,734 INFO L124 PetriNetUnfolderBase]: 8539/14688 cut-off events. [2024-02-07 19:23:28,734 INFO L125 PetriNetUnfolderBase]: For 846/846 co-relation queries the response was YES. [2024-02-07 19:23:28,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25964 conditions, 14688 events. 8539/14688 cut-off events. For 846/846 co-relation queries the response was YES. Maximal size of possible extension queue 837. Compared 115194 event pairs, 3391 based on Foata normal form. 1394/12638 useless extension candidates. Maximal degree in co-relation 3309. Up to 7030 conditions per place. [2024-02-07 19:23:28,824 INFO L140 encePairwiseOnDemand]: 58/71 looper letters, 80 selfloop transitions, 5 changer transitions 0/116 dead transitions. [2024-02-07 19:23:28,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 116 transitions, 444 flow [2024-02-07 19:23:28,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:23:28,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:23:28,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 224 transitions. [2024-02-07 19:23:28,826 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7887323943661971 [2024-02-07 19:23:28,826 INFO L175 Difference]: Start difference. First operand has 63 places, 71 transitions, 160 flow. Second operand 4 states and 224 transitions. [2024-02-07 19:23:28,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 116 transitions, 444 flow [2024-02-07 19:23:28,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 116 transitions, 438 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-02-07 19:23:28,830 INFO L231 Difference]: Finished difference. Result has 67 places, 71 transitions, 190 flow [2024-02-07 19:23:28,830 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=67, PETRI_TRANSITIONS=71} [2024-02-07 19:23:28,830 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, 4 predicate places. [2024-02-07 19:23:28,831 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 71 transitions, 190 flow [2024-02-07 19:23:28,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 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) [2024-02-07 19:23:28,831 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:23:28,831 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:23:28,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-02-07 19:23:28,832 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 18 more)] === [2024-02-07 19:23:28,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:23:28,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1229586833, now seen corresponding path program 1 times [2024-02-07 19:23:28,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:23:28,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356189595] [2024-02-07 19:23:28,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:23:28,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:23:28,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:23:29,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:23:29,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:23:29,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356189595] [2024-02-07 19:23:29,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356189595] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:23:29,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:23:29,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-02-07 19:23:29,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945784663] [2024-02-07 19:23:29,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:23:29,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-02-07 19:23:29,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:23:29,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-02-07 19:23:29,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-02-07 19:23:29,311 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 71 [2024-02-07 19:23:29,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 71 transitions, 190 flow. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 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) [2024-02-07 19:23:29,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:23:29,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 71 [2024-02-07 19:23:29,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:23:32,572 INFO L124 PetriNetUnfolderBase]: 14980/23549 cut-off events. [2024-02-07 19:23:32,573 INFO L125 PetriNetUnfolderBase]: For 1891/1978 co-relation queries the response was YES. [2024-02-07 19:23:32,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46719 conditions, 23549 events. 14980/23549 cut-off events. For 1891/1978 co-relation queries the response was YES. Maximal size of possible extension queue 1194. Compared 173975 event pairs, 3340 based on Foata normal form. 0/18898 useless extension candidates. Maximal degree in co-relation 36947. Up to 7375 conditions per place. [2024-02-07 19:23:32,744 INFO L140 encePairwiseOnDemand]: 63/71 looper letters, 134 selfloop transitions, 9 changer transitions 0/173 dead transitions. [2024-02-07 19:23:32,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 173 transitions, 738 flow [2024-02-07 19:23:32,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-02-07 19:23:32,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-02-07 19:23:32,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 324 transitions. [2024-02-07 19:23:32,747 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7605633802816901 [2024-02-07 19:23:32,747 INFO L175 Difference]: Start difference. First operand has 67 places, 71 transitions, 190 flow. Second operand 6 states and 324 transitions. [2024-02-07 19:23:32,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 173 transitions, 738 flow [2024-02-07 19:23:32,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 173 transitions, 734 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:23:32,781 INFO L231 Difference]: Finished difference. Result has 75 places, 76 transitions, 245 flow [2024-02-07 19:23:32,781 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=245, PETRI_PLACES=75, PETRI_TRANSITIONS=76} [2024-02-07 19:23:32,783 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, 12 predicate places. [2024-02-07 19:23:32,786 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 76 transitions, 245 flow [2024-02-07 19:23:32,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 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) [2024-02-07 19:23:32,786 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:23:32,786 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:23:32,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-02-07 19:23:32,787 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 18 more)] === [2024-02-07 19:23:32,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:23:32,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1229587633, now seen corresponding path program 1 times [2024-02-07 19:23:32,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:23:32,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796463144] [2024-02-07 19:23:32,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:23:32,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:23:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:23:32,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:23:32,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:23:32,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796463144] [2024-02-07 19:23:32,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796463144] provided 0 perfect and 1 imperfect interpolant sequences [2024-02-07 19:23:32,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601897805] [2024-02-07 19:23:32,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:23:32,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-02-07 19:23:32,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 19:23:32,924 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-02-07 19:23:32,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-02-07 19:23:32,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:23:32,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2024-02-07 19:23:32,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-07 19:23:33,062 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:23:33,063 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-02-07 19:23:33,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:23:33,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601897805] provided 0 perfect and 2 imperfect interpolant sequences [2024-02-07 19:23:33,232 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-02-07 19:23:33,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-02-07 19:23:33,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029210257] [2024-02-07 19:23:33,233 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-02-07 19:23:33,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-02-07 19:23:33,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:23:33,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-02-07 19:23:33,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-02-07 19:23:33,395 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 71 [2024-02-07 19:23:33,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 76 transitions, 245 flow. Second operand has 14 states, 14 states have (on average 30.285714285714285) internal successors, (424), 14 states have internal predecessors, (424), 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) [2024-02-07 19:23:33,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:23:33,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 71 [2024-02-07 19:23:33,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:23:37,765 INFO L124 PetriNetUnfolderBase]: 24676/35422 cut-off events. [2024-02-07 19:23:37,765 INFO L125 PetriNetUnfolderBase]: For 4023/4023 co-relation queries the response was YES. [2024-02-07 19:23:37,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77745 conditions, 35422 events. 24676/35422 cut-off events. For 4023/4023 co-relation queries the response was YES. Maximal size of possible extension queue 1426. Compared 232794 event pairs, 2785 based on Foata normal form. 1806/32161 useless extension candidates. Maximal degree in co-relation 71424. Up to 5602 conditions per place. [2024-02-07 19:23:38,034 INFO L140 encePairwiseOnDemand]: 58/71 looper letters, 389 selfloop transitions, 22 changer transitions 0/441 dead transitions. [2024-02-07 19:23:38,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 441 transitions, 2008 flow [2024-02-07 19:23:38,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-02-07 19:23:38,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-02-07 19:23:38,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 949 transitions. [2024-02-07 19:23:38,038 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7425665101721439 [2024-02-07 19:23:38,038 INFO L175 Difference]: Start difference. First operand has 75 places, 76 transitions, 245 flow. Second operand 18 states and 949 transitions. [2024-02-07 19:23:38,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 441 transitions, 2008 flow [2024-02-07 19:23:38,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 441 transitions, 2004 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:23:38,117 INFO L231 Difference]: Finished difference. Result has 101 places, 90 transitions, 407 flow [2024-02-07 19:23:38,117 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=407, PETRI_PLACES=101, PETRI_TRANSITIONS=90} [2024-02-07 19:23:38,119 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, 38 predicate places. [2024-02-07 19:23:38,119 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 90 transitions, 407 flow [2024-02-07 19:23:38,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 30.285714285714285) internal successors, (424), 14 states have internal predecessors, (424), 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) [2024-02-07 19:23:38,119 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:23:38,120 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:23:38,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-02-07 19:23:38,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-02-07 19:23:38,335 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 18 more)] === [2024-02-07 19:23:38,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:23:38,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1373911772, now seen corresponding path program 1 times [2024-02-07 19:23:38,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:23:38,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442526414] [2024-02-07 19:23:38,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:23:38,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:23:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:23:38,438 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-02-07 19:23:38,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:23:38,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442526414] [2024-02-07 19:23:38,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442526414] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:23:38,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:23:38,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:23:38,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333243951] [2024-02-07 19:23:38,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:23:38,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:23:38,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:23:38,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:23:38,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:23:38,482 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 71 [2024-02-07 19:23:38,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 90 transitions, 407 flow. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 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) [2024-02-07 19:23:38,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:23:38,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 71 [2024-02-07 19:23:38,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:23:48,449 INFO L124 PetriNetUnfolderBase]: 40511/68551 cut-off events. [2024-02-07 19:23:48,449 INFO L125 PetriNetUnfolderBase]: For 80284/81106 co-relation queries the response was YES. [2024-02-07 19:23:48,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161894 conditions, 68551 events. 40511/68551 cut-off events. For 80284/81106 co-relation queries the response was YES. Maximal size of possible extension queue 3197. Compared 638829 event pairs, 15608 based on Foata normal form. 1218/59319 useless extension candidates. Maximal degree in co-relation 152197. Up to 33245 conditions per place. [2024-02-07 19:23:49,153 INFO L140 encePairwiseOnDemand]: 62/71 looper letters, 141 selfloop transitions, 5 changer transitions 0/179 dead transitions. [2024-02-07 19:23:49,153 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 179 transitions, 1209 flow [2024-02-07 19:23:49,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:23:49,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:23:49,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 211 transitions. [2024-02-07 19:23:49,154 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7429577464788732 [2024-02-07 19:23:49,155 INFO L175 Difference]: Start difference. First operand has 101 places, 90 transitions, 407 flow. Second operand 4 states and 211 transitions. [2024-02-07 19:23:49,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 179 transitions, 1209 flow [2024-02-07 19:23:49,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 179 transitions, 1080 flow, removed 48 selfloop flow, removed 2 redundant places. [2024-02-07 19:23:49,470 INFO L231 Difference]: Finished difference. Result has 104 places, 94 transitions, 404 flow [2024-02-07 19:23:49,470 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=404, PETRI_PLACES=104, PETRI_TRANSITIONS=94} [2024-02-07 19:23:49,471 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, 41 predicate places. [2024-02-07 19:23:49,471 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 94 transitions, 404 flow [2024-02-07 19:23:49,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 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) [2024-02-07 19:23:49,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:23:49,471 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:23:49,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-02-07 19:23:49,472 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err3ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 18 more)] === [2024-02-07 19:23:49,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:23:49,472 INFO L85 PathProgramCache]: Analyzing trace with hash -536498580, now seen corresponding path program 1 times [2024-02-07 19:23:49,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:23:49,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530709777] [2024-02-07 19:23:49,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:23:49,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:23:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 19:23:49,485 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-07 19:23:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 19:23:49,495 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-07 19:23:49,495 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-07 19:23:49,495 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (20 of 21 remaining) [2024-02-07 19:23:49,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 21 remaining) [2024-02-07 19:23:49,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 21 remaining) [2024-02-07 19:23:49,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 21 remaining) [2024-02-07 19:23:49,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 21 remaining) [2024-02-07 19:23:49,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (15 of 21 remaining) [2024-02-07 19:23:49,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 21 remaining) [2024-02-07 19:23:49,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 21 remaining) [2024-02-07 19:23:49,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 21 remaining) [2024-02-07 19:23:49,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 21 remaining) [2024-02-07 19:23:49,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 21 remaining) [2024-02-07 19:23:49,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (9 of 21 remaining) [2024-02-07 19:23:49,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 21 remaining) [2024-02-07 19:23:49,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 21 remaining) [2024-02-07 19:23:49,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 21 remaining) [2024-02-07 19:23:49,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 21 remaining) [2024-02-07 19:23:49,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 21 remaining) [2024-02-07 19:23:49,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 21 remaining) [2024-02-07 19:23:49,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 21 remaining) [2024-02-07 19:23:49,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 21 remaining) [2024-02-07 19:23:49,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (0 of 21 remaining) [2024-02-07 19:23:49,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-02-07 19:23:49,500 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-02-07 19:23:49,504 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2024-02-07 19:23:49,505 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-07 19:23:49,527 INFO L503 ceAbstractionStarter]: Automizer considered 4 witness invariants [2024-02-07 19:23:49,527 INFO L504 ceAbstractionStarter]: WitnessConsidered=4 [2024-02-07 19:23:49,528 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 07:23:49 BasicIcfg [2024-02-07 19:23:49,528 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-07 19:23:49,529 INFO L158 Benchmark]: Toolchain (without parser) took 31183.50ms. Allocated memory was 165.7MB in the beginning and 11.6GB in the end (delta: 11.5GB). Free memory was 122.7MB in the beginning and 10.3GB in the end (delta: -10.2GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-02-07 19:23:49,529 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 121.6MB. Free memory was 84.3MB in the beginning and 84.2MB in the end (delta: 77.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 19:23:49,529 INFO L158 Benchmark]: Witness Parser took 2.40ms. Allocated memory is still 165.7MB. Free memory is still 132.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 19:23:49,530 INFO L158 Benchmark]: CACSL2BoogieTranslator took 908.89ms. Allocated memory is still 165.7MB. Free memory was 122.7MB in the beginning and 122.5MB in the end (delta: 280.1kB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-02-07 19:23:49,530 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.62ms. Allocated memory is still 165.7MB. Free memory was 122.5MB in the beginning and 120.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 19:23:49,530 INFO L158 Benchmark]: Boogie Preprocessor took 75.93ms. Allocated memory is still 165.7MB. Free memory was 120.4MB in the beginning and 118.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 19:23:49,531 INFO L158 Benchmark]: RCFGBuilder took 689.81ms. Allocated memory is still 165.7MB. Free memory was 118.3MB in the beginning and 75.3MB in the end (delta: 43.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-02-07 19:23:49,531 INFO L158 Benchmark]: TraceAbstraction took 29447.19ms. Allocated memory was 165.7MB in the beginning and 11.6GB in the end (delta: 11.5GB). Free memory was 74.2MB in the beginning and 10.3GB in the end (delta: -10.3GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2024-02-07 19:23:49,533 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 121.6MB. Free memory was 84.3MB in the beginning and 84.2MB in the end (delta: 77.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 2.40ms. Allocated memory is still 165.7MB. Free memory is still 132.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 908.89ms. Allocated memory is still 165.7MB. Free memory was 122.7MB in the beginning and 122.5MB in the end (delta: 280.1kB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.62ms. Allocated memory is still 165.7MB. Free memory was 122.5MB in the beginning and 120.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.93ms. Allocated memory is still 165.7MB. Free memory was 120.4MB in the beginning and 118.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 689.81ms. Allocated memory is still 165.7MB. Free memory was 118.3MB in the beginning and 75.3MB in the end (delta: 43.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * TraceAbstraction took 29447.19ms. Allocated memory was 165.7MB in the beginning and 11.6GB in the end (delta: 11.5GB). Free memory was 74.2MB in the beginning and 10.3GB in the end (delta: -10.3GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L700] 0 pthread_t t; VAL [t={3:0}] [L701] COND TRUE 0 1 [L703] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [arg={0:0}, t={3:0}] [L686] 1 unsigned int x=__VERIFIER_nondet_uint(), y=__VERIFIER_nondet_uint(), z=__VERIFIER_nondet_uint(); [L686] 1 unsigned int x=__VERIFIER_nondet_uint(), y=__VERIFIER_nondet_uint(), z=__VERIFIER_nondet_uint(); [L686] 1 unsigned int x=__VERIFIER_nondet_uint(), y=__VERIFIER_nondet_uint(), z=__VERIFIER_nondet_uint(); [L687] 1 int i, j=1, k=1; [L688] 1 i=0 VAL [arg={0:0}, arg={0:0}, i=0, j=1, k=1] [L688] COND FALSE 1 !(i