./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-ext/11_fmaxsymopt.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/11_fmaxsymopt.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fced0e87 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/11_fmaxsymopt.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/11_fmaxsymopt.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.extract-columns-fced0e8-m [2024-01-31 16:01:22,852 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-31 16:01:22,936 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-31 16:01:22,940 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-31 16:01:22,940 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-31 16:01:22,972 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-31 16:01:22,973 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-31 16:01:22,973 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-31 16:01:22,974 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-31 16:01:22,980 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-31 16:01:22,981 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-31 16:01:22,981 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-31 16:01:22,983 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-31 16:01:22,984 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-31 16:01:22,984 INFO L153 SettingsManager]: * Use SBE=true [2024-01-31 16:01:22,985 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-31 16:01:22,985 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-31 16:01:22,985 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-31 16:01:22,986 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-31 16:01:22,986 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-31 16:01:22,986 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-31 16:01:22,986 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-31 16:01:22,987 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-31 16:01:22,987 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-31 16:01:22,987 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-31 16:01:22,987 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-31 16:01:22,988 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-31 16:01:22,988 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-31 16:01:22,989 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-31 16:01:22,989 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-31 16:01:22,990 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-31 16:01:22,990 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-31 16:01:22,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:01:22,990 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-31 16:01:22,991 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-31 16:01:22,991 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-31 16:01:22,991 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-31 16:01:22,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-31 16:01:22,991 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-31 16:01:22,992 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-31 16:01:22,992 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-31 16:01:22,992 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-31 16:01:22,992 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-31 16:01:22,992 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-31 16:01:23,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-31 16:01:23,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-31 16:01:23,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-31 16:01:23,263 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-31 16:01:23,263 INFO L274 PluginConnector]: CDTParser initialized [2024-01-31 16:01:23,264 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/11_fmaxsymopt.i [2024-01-31 16:01:24,543 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-31 16:01:24,731 INFO L384 CDTParser]: Found 1 translation units. [2024-01-31 16:01:24,732 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/11_fmaxsymopt.i [2024-01-31 16:01:24,744 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7304128af/dfa465a4e721475f85e5a59716c7c0e0/FLAG42f2f9a4d [2024-01-31 16:01:24,758 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7304128af/dfa465a4e721475f85e5a59716c7c0e0 [2024-01-31 16:01:24,760 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-31 16:01:24,761 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-31 16:01:24,761 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/11_fmaxsymopt.yml/witness.yml [2024-01-31 16:01:24,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-31 16:01:24,876 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-31 16:01:24,877 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-31 16:01:24,878 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-31 16:01:24,881 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-31 16:01:24,882 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:01:24" (1/2) ... [2024-01-31 16:01:24,885 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@635db57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:01:24, skipping insertion in model container [2024-01-31 16:01:24,885 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:01:24" (1/2) ... [2024-01-31 16:01:24,887 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@41270942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:01:24, skipping insertion in model container [2024-01-31 16:01:24,887 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:01:24" (2/2) ... [2024-01-31 16:01:24,887 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@635db57 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:24, skipping insertion in model container [2024-01-31 16:01:24,888 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:01:24" (2/2) ... [2024-01-31 16:01:24,888 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-31 16:01:24,995 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-31 16:01:24,996 INFO L98 nessWitnessExtractor]: Loop invariant at [L705-L705] (((((offset <= 2147483645 && (0LL - (long long )e) + (long long )my_max >= 0LL) && e == 0) && my_max == 0) && (((((-2147483646 <= i && (2LL - (long long )i) + (long long )offset >= 0LL) && (-2LL + (long long )i) - (long long )offset >= 0LL) || (((-2147483647 <= i && i <= 2147483646) && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL)) || (((((-2147483647 <= i && (4294967294LL + (long long )e) + (long long )my_max >= 0LL) && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) && (long long )e - (long long )my_max >= 0LL) && e == my_max)) || ((((((i <= 2147483646 && (4294967294LL + (long long )e) + (long long )my_max >= 0LL) && (0LL - (long long )i) + (long long )offset >= 0LL) && (long long )i - (long long )offset >= 0LL) && (long long )e - (long long )my_max >= 0LL) && offset == i) && e == my_max))) || (((((((((4294967296LL + (long long )e) + (long long )my_max >= 0LL && (0LL - (long long )i) + (long long )offset >= 0LL) && (4294967295LL - (long long )e) + (long long )my_max >= 0LL) && (-1LL - (long long )e) - (long long )my_max >= 0LL) && (long long )i - (long long )offset >= 0LL) && (long long )e - (long long )my_max >= 0LL) && (-0x7FFFFFFF-1) == my_max) && offset == i) && my_max == (-0x7FFFFFFF-1))) || ((((((((((((((4294967296LL + (long long )i) + (long long )my_max >= 0LL && (4294967296LL + (long long )e) + (long long )i >= 0LL) && (4294967296LL + (long long )e) + (long long )my_max >= 0LL) && (4294967295LL - (long long )i) + (long long )my_max >= 0LL) && (4294967295LL - (long long )e) + (long long )i >= 0LL) && (4294967295LL - (long long )e) + (long long )my_max >= 0LL) && (4294967295LL + (long long )e) - (long long )i >= 0LL) && (-1LL - (long long )i) - (long long )my_max >= 0LL) && (-1LL - (long long )e) - (long long )my_max >= 0LL) && (4294967294LL - (long long )e) - (long long )i >= 0LL) && (long long )i - (long long )my_max >= 0LL) && (long long )e - (long long )my_max >= 0LL) && (-0x7FFFFFFF-1) == my_max) && my_max == (-0x7FFFFFFF-1)) [2024-01-31 16:01:24,996 INFO L98 nessWitnessExtractor]: Location invariant before [L720-L720] ((((((-2147483646 <= i) && (offset <= 2147483645)) && ((0LL - (long long )e) + (long long )my_max >= 0LL)) && ((2LL - (long long )i) + (long long )offset >= 0LL)) && ((-2LL + (long long )i) - (long long )offset >= 0LL)) && (e == 0)) && (my_max == 0) [2024-01-31 16:01:24,996 INFO L98 nessWitnessExtractor]: Location invariant after [L720-L720] ((((((-2147483646 <= i) && (offset <= 2147483645)) && ((0LL - (long long )e) + (long long )my_max >= 0LL)) && ((2LL - (long long )i) + (long long )offset >= 0LL)) && ((-2LL + (long long )i) - (long long )offset >= 0LL)) && (e == 0)) && (my_max == 0) [2024-01-31 16:01:24,997 INFO L98 nessWitnessExtractor]: Location invariant before [L719-L719] ((((((-2147483646 <= i) && (offset <= 2147483645)) && ((0LL - (long long )e) + (long long )my_max >= 0LL)) && ((2LL - (long long )i) + (long long )offset >= 0LL)) && ((-2LL + (long long )i) - (long long )offset >= 0LL)) && (e == 0)) && (my_max == 0) [2024-01-31 16:01:24,997 INFO L98 nessWitnessExtractor]: Location invariant before [L724-L724] (unsigned long )arg == 0UL [2024-01-31 16:01:24,997 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] (((((((((offset <= 2147483645) && (i <= 2147483646)) && ((4294967295LL + (long long )e) + (long long )my_max >= 0LL)) && ((0LL - (long long )i) + (long long )offset >= 0LL)) && ((-1LL + (long long )e) - (long long )my_max >= 0LL)) && ((long long )i - (long long )offset >= 0LL)) && ((-0x7FFFFFFF-1) == my_max)) && (offset == i)) && (e == 0)) && (my_max == (-0x7FFFFFFF-1)) [2024-01-31 16:01:24,997 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] (((((offset <= 2147483645) && (i <= 2147483646)) && ((0LL - (long long )e) + (long long )my_max >= 0LL)) && (e == 0)) && (my_max == 0)) && (((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) || ((((((4294967294LL + (long long )e) + (long long )my_max >= 0LL && (0LL - (long long )i) + (long long )offset >= 0LL) && (long long )i - (long long )offset >= 0LL) && (long long )e - (long long )my_max >= 0LL) && offset == i) && e == my_max)) [2024-01-31 16:01:24,997 INFO L98 nessWitnessExtractor]: Location invariant before [L727-L727] (unsigned long )arg == 0UL [2024-01-31 16:01:24,998 INFO L98 nessWitnessExtractor]: Location invariant before [L712-L712] ((((((-2147483646 <= i) && (offset <= 2147483645)) && ((0LL - (long long )e) + (long long )my_max >= 0LL)) && ((2LL - (long long )i) + (long long )offset >= 0LL)) && ((-2LL + (long long )i) - (long long )offset >= 0LL)) && (e == 0)) && (my_max == 0) [2024-01-31 16:01:24,998 INFO L98 nessWitnessExtractor]: Location invariant after [L724-L724] (unsigned long )arg == 0UL [2024-01-31 16:01:24,998 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] ((((((-2147483646 <= i) && (offset <= 2147483645)) && ((0LL - (long long )e) + (long long )my_max >= 0LL)) && ((2LL - (long long )i) + (long long )offset >= 0LL)) && ((-2LL + (long long )i) - (long long )offset >= 0LL)) && (e == 0)) && (my_max == 0) [2024-01-31 16:01:24,998 INFO L98 nessWitnessExtractor]: Location invariant before [L720-L720] ((((((-2147483646 <= i) && (offset <= 2147483645)) && ((0LL - (long long )e) + (long long )my_max >= 0LL)) && ((2LL - (long long )i) + (long long )offset >= 0LL)) && ((-2LL + (long long )i) - (long long )offset >= 0LL)) && (e == 0)) && (my_max == 0) [2024-01-31 16:01:24,998 INFO L98 nessWitnessExtractor]: Location invariant before [L726-L726] (unsigned long )arg == 0UL [2024-01-31 16:01:24,998 INFO L98 nessWitnessExtractor]: Location invariant before [L718-L718] ((((((-2147483646 <= i) && (offset <= 2147483645)) && ((0LL - (long long )e) + (long long )my_max >= 0LL)) && ((2LL - (long long )i) + (long long )offset >= 0LL)) && ((-2LL + (long long )i) - (long long )offset >= 0LL)) && (e == 0)) && (my_max == 0) [2024-01-31 16:01:24,999 INFO L98 nessWitnessExtractor]: Location invariant before [L704-L704] ((((((((((((4294967296LL + (long long )i) + (long long )my_max >= 0LL) && ((4294967296LL + (long long )e) + (long long )i >= 0LL)) && ((4294967296LL + (long long )e) + (long long )my_max >= 0LL)) && ((4294967295LL - (long long )i) + (long long )my_max >= 0LL)) && ((4294967295LL - (long long )e) + (long long )i >= 0LL)) && ((4294967295LL - (long long )e) + (long long )my_max >= 0LL)) && ((4294967295LL + (long long )i) - (long long )my_max >= 0LL)) && ((4294967295LL + (long long )e) - (long long )i >= 0LL)) && ((4294967295LL + (long long )e) - (long long )my_max >= 0LL)) && ((4294967294LL - (long long )i) - (long long )my_max >= 0LL)) && ((4294967294LL - (long long )e) - (long long )i >= 0LL)) && ((4294967294LL - (long long )e) - (long long )my_max >= 0LL) [2024-01-31 16:01:24,999 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] (((offset <= 2147483645) && (i <= 2147483646)) && (e == 0)) && ((((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) && my_max == 0) || (((((0LL - (long long )i) + (long long )offset >= 0LL && (long long )i - (long long )offset >= 0LL) && (-0x7FFFFFFF-1) == my_max) && offset == i) && my_max == (-0x7FFFFFFF-1))) [2024-01-31 16:01:24,999 INFO L98 nessWitnessExtractor]: Location invariant before [L725-L725] ((offset <= 2147483646) && (offset % 2 == 0)) && ((unsigned long )arg == 0UL) [2024-01-31 16:01:24,999 INFO L98 nessWitnessExtractor]: Location invariant after [L704-L704] ((((((((((((4294967296LL + (long long )i) + (long long )my_max >= 0LL) && ((4294967296LL + (long long )e) + (long long )i >= 0LL)) && ((4294967296LL + (long long )e) + (long long )my_max >= 0LL)) && ((4294967295LL - (long long )i) + (long long )my_max >= 0LL)) && ((4294967295LL - (long long )e) + (long long )i >= 0LL)) && ((4294967295LL - (long long )e) + (long long )my_max >= 0LL)) && ((4294967295LL + (long long )i) - (long long )my_max >= 0LL)) && ((4294967295LL + (long long )e) - (long long )i >= 0LL)) && ((4294967295LL + (long long )e) - (long long )my_max >= 0LL)) && ((4294967294LL - (long long )i) - (long long )my_max >= 0LL)) && ((4294967294LL - (long long )e) - (long long )i >= 0LL)) && ((4294967294LL - (long long )e) - (long long )my_max >= 0LL) [2024-01-31 16:01:25,000 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] (((offset <= 2147483645) && (i <= 2147483646)) && ((long long )e - (long long )my_max >= 0LL)) && ((((((((-2147483647 <= i && (4294967294LL + (long long )e) + (long long )my_max >= 0LL) && (0LL - (long long )e) + (long long )my_max >= 0LL) && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) && e == 0) && e == my_max) && my_max == 0) || ((((((((4294967296LL + (long long )e) + (long long )my_max >= 0LL && (0LL - (long long )i) + (long long )offset >= 0LL) && (4294967295LL - (long long )e) + (long long )my_max >= 0LL) && (-1LL - (long long )e) - (long long )my_max >= 0LL) && (long long )i - (long long )offset >= 0LL) && (-0x7FFFFFFF-1) == my_max) && offset == i) && my_max == (-0x7FFFFFFF-1))) [2024-01-31 16:01:25,000 INFO L98 nessWitnessExtractor]: Location invariant before [L721-L721] ((((((-2147483646 <= i) && (offset <= 2147483645)) && ((0LL - (long long )e) + (long long )my_max >= 0LL)) && ((2LL - (long long )i) + (long long )offset >= 0LL)) && ((-2LL + (long long )i) - (long long )offset >= 0LL)) && (e == 0)) && (my_max == 0) [2024-01-31 16:01:25,000 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] ((((((-2147483646 <= i) && (offset <= 2147483645)) && ((0LL - (long long )e) + (long long )my_max >= 0LL)) && ((2LL - (long long )i) + (long long )offset >= 0LL)) && ((-2LL + (long long )i) - (long long )offset >= 0LL)) && (e == 0)) && (my_max == 0) [2024-01-31 16:01:25,057 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-01-31 16:01:25,451 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/11_fmaxsymopt.i[30570,30583] [2024-01-31 16:01:25,461 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:01:25,471 INFO L204 MainTranslator]: Completed pre-run [2024-01-31 16:01:25,521 WARN L424 MainDispatcher]: Unable to annotate int with a witness entry [2024-01-31 16:01:25,522 WARN L424 MainDispatcher]: Unable to annotate my_max = 0x80000000 with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-31 16:01:25,606 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/11_fmaxsymopt.i[30570,30583] Start Parsing Local Start Parsing Local [2024-01-31 16:01:25,610 WARN L424 MainDispatcher]: Unable to annotate int with a witness entry [2024-01-31 16:01:25,610 WARN L424 MainDispatcher]: Unable to annotate offset=__VERIFIER_nondet_int() with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-31 16:01:25,614 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:01:25,638 INFO L208 MainTranslator]: Completed translation [2024-01-31 16:01:25,639 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:25 WrapperNode [2024-01-31 16:01:25,639 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-31 16:01:25,640 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-31 16:01:25,640 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-31 16:01:25,640 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-31 16:01:25,646 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 31.01 04:01:25" (1/1) ... [2024-01-31 16:01:25,666 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 31.01 04:01:25" (1/1) ... [2024-01-31 16:01:25,707 INFO L138 Inliner]: procedures = 171, calls = 27, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 124 [2024-01-31 16:01:25,709 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-31 16:01:25,710 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-31 16:01:25,710 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-31 16:01:25,710 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-31 16:01:25,719 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:25" (1/1) ... [2024-01-31 16:01:25,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:25" (1/1) ... [2024-01-31 16:01:25,730 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:25" (1/1) ... [2024-01-31 16:01:25,755 INFO L175 MemorySlicer]: Split 11 memory accesses to 3 slices as follows [2, 8, 1]. 73 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-01-31 16:01:25,755 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:25" (1/1) ... [2024-01-31 16:01:25,755 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:25" (1/1) ... [2024-01-31 16:01:25,760 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:25" (1/1) ... [2024-01-31 16:01:25,768 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:25" (1/1) ... [2024-01-31 16:01:25,770 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:25" (1/1) ... [2024-01-31 16:01:25,771 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:25" (1/1) ... [2024-01-31 16:01:25,773 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-31 16:01:25,774 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-31 16:01:25,774 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-31 16:01:25,774 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-31 16:01:25,774 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:25" (1/1) ... [2024-01-31 16:01:25,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:01:25,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 16:01:25,796 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) [2024-01-31 16:01:25,798 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 [2024-01-31 16:01:25,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-31 16:01:25,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-31 16:01:25,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-31 16:01:25,828 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-01-31 16:01:25,828 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-01-31 16:01:25,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-31 16:01:25,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-31 16:01:25,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-31 16:01:25,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-31 16:01:25,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-31 16:01:25,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-31 16:01:25,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-31 16:01:25,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-31 16:01:25,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-31 16:01:25,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-31 16:01:25,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-31 16:01:25,830 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-31 16:01:25,931 INFO L244 CfgBuilder]: Building ICFG [2024-01-31 16:01:25,933 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-31 16:01:26,264 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-31 16:01:26,264 INFO L293 CfgBuilder]: Performing block encoding [2024-01-31 16:01:26,355 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-31 16:01:26,356 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-01-31 16:01:26,356 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:01:26 BoogieIcfgContainer [2024-01-31 16:01:26,356 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-31 16:01:26,358 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-31 16:01:26,359 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-31 16:01:26,361 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-31 16:01:26,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:01:24" (1/4) ... [2024-01-31 16:01:26,363 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18cc73e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:01:26, skipping insertion in model container [2024-01-31 16:01:26,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:01:24" (2/4) ... [2024-01-31 16:01:26,363 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18cc73e6 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 04:01:26, skipping insertion in model container [2024-01-31 16:01:26,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:25" (3/4) ... [2024-01-31 16:01:26,365 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18cc73e6 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 04:01:26, skipping insertion in model container [2024-01-31 16:01:26,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:01:26" (4/4) ... [2024-01-31 16:01:26,366 INFO L112 eAbstractionObserver]: Analyzing ICFG 11_fmaxsymopt.i [2024-01-31 16:01:26,382 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-31 16:01:26,382 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2024-01-31 16:01:26,383 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-31 16:01:26,471 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-31 16:01:26,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 58 transitions, 120 flow [2024-01-31 16:01:26,562 INFO L124 PetriNetUnfolderBase]: 6/60 cut-off events. [2024-01-31 16:01:26,562 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:01:26,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 60 events. 6/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 106 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2024-01-31 16:01:26,566 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 58 transitions, 120 flow [2024-01-31 16:01:26,570 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 58 transitions, 120 flow [2024-01-31 16:01:26,583 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 16:01:26,593 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;@1287499a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 16:01:26,593 INFO L358 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-01-31 16:01:26,599 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 16:01:26,600 INFO L124 PetriNetUnfolderBase]: 1/10 cut-off events. [2024-01-31 16:01:26,600 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:01:26,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:01:26,601 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-31 16:01:26,602 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 32 more)] === [2024-01-31 16:01:26,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:01:26,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1273419384, now seen corresponding path program 1 times [2024-01-31 16:01:26,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:01:26,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776116016] [2024-01-31 16:01:26,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:01:26,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:01:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:01:26,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:01:26,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:01:26,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776116016] [2024-01-31 16:01:26,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776116016] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:01:26,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:01:26,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-31 16:01:26,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622586330] [2024-01-31 16:01:26,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:01:26,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:01:26,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:01:26,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:01:26,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:01:26,995 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 58 [2024-01-31 16:01:26,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 58 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-01-31 16:01:26,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:01:26,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 58 [2024-01-31 16:01:27,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:01:27,132 INFO L124 PetriNetUnfolderBase]: 37/180 cut-off events. [2024-01-31 16:01:27,132 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:01:27,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 180 events. 37/180 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 688 event pairs, 24 based on Foata normal form. 3/146 useless extension candidates. Maximal degree in co-relation 244. Up to 77 conditions per place. [2024-01-31 16:01:27,137 INFO L140 encePairwiseOnDemand]: 53/58 looper letters, 20 selfloop transitions, 2 changer transitions 0/57 dead transitions. [2024-01-31 16:01:27,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 57 transitions, 162 flow [2024-01-31 16:01:27,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 16:01:27,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 16:01:27,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 130 transitions. [2024-01-31 16:01:27,148 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7471264367816092 [2024-01-31 16:01:27,151 INFO L175 Difference]: Start difference. First operand has 55 places, 58 transitions, 120 flow. Second operand 3 states and 130 transitions. [2024-01-31 16:01:27,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 57 transitions, 162 flow [2024-01-31 16:01:27,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 57 transitions, 162 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-31 16:01:27,158 INFO L231 Difference]: Finished difference. Result has 57 places, 57 transitions, 128 flow [2024-01-31 16:01:27,160 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=57, PETRI_TRANSITIONS=57} [2024-01-31 16:01:27,163 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 2 predicate places. [2024-01-31 16:01:27,163 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 57 transitions, 128 flow [2024-01-31 16:01:27,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-01-31 16:01:27,164 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:01:27,164 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:01:27,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-31 16:01:27,165 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 32 more)] === [2024-01-31 16:01:27,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:01:27,166 INFO L85 PathProgramCache]: Analyzing trace with hash -892148445, now seen corresponding path program 1 times [2024-01-31 16:01:27,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:01:27,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658607713] [2024-01-31 16:01:27,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:01:27,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:01:27,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:01:27,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:01:27,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:01:27,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658607713] [2024-01-31 16:01:27,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658607713] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-31 16:01:27,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604832752] [2024-01-31 16:01:27,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:01:27,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 16:01:27,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 16:01:27,278 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) [2024-01-31 16:01:27,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-01-31 16:01:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:01:27,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjunts are in the unsatisfiable core [2024-01-31 16:01:27,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-31 16:01:27,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:01:27,417 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-31 16:01:27,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:01:27,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604832752] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-31 16:01:27,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-31 16:01:27,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-01-31 16:01:27,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076627252] [2024-01-31 16:01:27,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-31 16:01:27,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-31 16:01:27,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:01:27,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-31 16:01:27,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-01-31 16:01:27,443 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 58 [2024-01-31 16:01:27,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 57 transitions, 128 flow. Second operand has 7 states, 7 states have (on average 36.57142857142857) internal successors, (256), 7 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) [2024-01-31 16:01:27,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:01:27,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 58 [2024-01-31 16:01:27,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:01:27,556 INFO L124 PetriNetUnfolderBase]: 37/183 cut-off events. [2024-01-31 16:01:27,557 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:01:27,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 183 events. 37/183 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 691 event pairs, 24 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 266. Up to 77 conditions per place. [2024-01-31 16:01:27,559 INFO L140 encePairwiseOnDemand]: 55/58 looper letters, 20 selfloop transitions, 5 changer transitions 0/60 dead transitions. [2024-01-31 16:01:27,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 60 transitions, 190 flow [2024-01-31 16:01:27,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-31 16:01:27,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-31 16:01:27,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 238 transitions. [2024-01-31 16:01:27,566 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6839080459770115 [2024-01-31 16:01:27,566 INFO L175 Difference]: Start difference. First operand has 57 places, 57 transitions, 128 flow. Second operand 6 states and 238 transitions. [2024-01-31 16:01:27,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 60 transitions, 190 flow [2024-01-31 16:01:27,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 60 transitions, 186 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-01-31 16:01:27,568 INFO L231 Difference]: Finished difference. Result has 64 places, 60 transitions, 160 flow [2024-01-31 16:01:27,568 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=160, PETRI_PLACES=64, PETRI_TRANSITIONS=60} [2024-01-31 16:01:27,570 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 9 predicate places. [2024-01-31 16:01:27,570 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 60 transitions, 160 flow [2024-01-31 16:01:27,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 36.57142857142857) internal successors, (256), 7 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) [2024-01-31 16:01:27,570 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:01:27,571 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2024-01-31 16:01:27,584 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-01-31 16:01:27,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 16:01:27,782 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 32 more)] === [2024-01-31 16:01:27,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:01:27,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1920514120, now seen corresponding path program 2 times [2024-01-31 16:01:27,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:01:27,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627013054] [2024-01-31 16:01:27,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:01:27,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:01:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:01:27,892 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:01:27,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:01:27,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627013054] [2024-01-31 16:01:27,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627013054] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-31 16:01:27,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945981118] [2024-01-31 16:01:27,893 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-31 16:01:27,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 16:01:27,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 16:01:27,895 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) [2024-01-31 16:01:27,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-01-31 16:01:27,956 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-01-31 16:01:27,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-31 16:01:27,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 6 conjunts are in the unsatisfiable core [2024-01-31 16:01:27,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-31 16:01:27,990 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:01:27,990 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-31 16:01:28,075 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:01:28,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945981118] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-31 16:01:28,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-31 16:01:28,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2024-01-31 16:01:28,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225526428] [2024-01-31 16:01:28,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-31 16:01:28,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-01-31 16:01:28,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:01:28,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-01-31 16:01:28,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-01-31 16:01:28,082 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 58 [2024-01-31 16:01:28,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 60 transitions, 160 flow. Second operand has 9 states, 9 states have (on average 36.55555555555556) internal successors, (329), 9 states have internal predecessors, (329), 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) [2024-01-31 16:01:28,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:01:28,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 58 [2024-01-31 16:01:28,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:01:28,215 INFO L124 PetriNetUnfolderBase]: 37/185 cut-off events. [2024-01-31 16:01:28,215 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-01-31 16:01:28,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 185 events. 37/185 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 691 event pairs, 24 based on Foata normal form. 2/151 useless extension candidates. Maximal degree in co-relation 257. Up to 77 conditions per place. [2024-01-31 16:01:28,218 INFO L140 encePairwiseOnDemand]: 55/58 looper letters, 20 selfloop transitions, 7 changer transitions 0/62 dead transitions. [2024-01-31 16:01:28,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 62 transitions, 226 flow [2024-01-31 16:01:28,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-31 16:01:28,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-31 16:01:28,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 309 transitions. [2024-01-31 16:01:28,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.665948275862069 [2024-01-31 16:01:28,221 INFO L175 Difference]: Start difference. First operand has 64 places, 60 transitions, 160 flow. Second operand 8 states and 309 transitions. [2024-01-31 16:01:28,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 62 transitions, 226 flow [2024-01-31 16:01:28,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 62 transitions, 212 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-01-31 16:01:28,224 INFO L231 Difference]: Finished difference. Result has 72 places, 62 transitions, 182 flow [2024-01-31 16:01:28,225 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=182, PETRI_PLACES=72, PETRI_TRANSITIONS=62} [2024-01-31 16:01:28,226 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 17 predicate places. [2024-01-31 16:01:28,226 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 62 transitions, 182 flow [2024-01-31 16:01:28,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 36.55555555555556) internal successors, (329), 9 states have internal predecessors, (329), 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) [2024-01-31 16:01:28,227 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:01:28,227 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 1, 1, 1, 1, 1, 1] [2024-01-31 16:01:28,240 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-01-31 16:01:28,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-01-31 16:01:28,431 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 32 more)] === [2024-01-31 16:01:28,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:01:28,432 INFO L85 PathProgramCache]: Analyzing trace with hash 805796776, now seen corresponding path program 3 times [2024-01-31 16:01:28,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:01:28,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458858628] [2024-01-31 16:01:28,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:01:28,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:01:28,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-31 16:01:28,481 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-31 16:01:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-31 16:01:28,522 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-31 16:01:28,522 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-31 16:01:28,523 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 35 remaining) [2024-01-31 16:01:28,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 35 remaining) [2024-01-31 16:01:28,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 35 remaining) [2024-01-31 16:01:28,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 35 remaining) [2024-01-31 16:01:28,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 35 remaining) [2024-01-31 16:01:28,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 35 remaining) [2024-01-31 16:01:28,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 35 remaining) [2024-01-31 16:01:28,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 35 remaining) [2024-01-31 16:01:28,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 35 remaining) [2024-01-31 16:01:28,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 35 remaining) [2024-01-31 16:01:28,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 35 remaining) [2024-01-31 16:01:28,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 35 remaining) [2024-01-31 16:01:28,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 35 remaining) [2024-01-31 16:01:28,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONERROR_FUNCTION (21 of 35 remaining) [2024-01-31 16:01:28,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 35 remaining) [2024-01-31 16:01:28,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 35 remaining) [2024-01-31 16:01:28,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 35 remaining) [2024-01-31 16:01:28,530 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 35 remaining) [2024-01-31 16:01:28,530 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 35 remaining) [2024-01-31 16:01:28,530 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 35 remaining) [2024-01-31 16:01:28,530 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 35 remaining) [2024-01-31 16:01:28,530 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 35 remaining) [2024-01-31 16:01:28,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 35 remaining) [2024-01-31 16:01:28,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 35 remaining) [2024-01-31 16:01:28,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 35 remaining) [2024-01-31 16:01:28,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 35 remaining) [2024-01-31 16:01:28,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 35 remaining) [2024-01-31 16:01:28,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 35 remaining) [2024-01-31 16:01:28,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 35 remaining) [2024-01-31 16:01:28,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 35 remaining) [2024-01-31 16:01:28,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONERROR_FUNCTION (4 of 35 remaining) [2024-01-31 16:01:28,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 35 remaining) [2024-01-31 16:01:28,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 35 remaining) [2024-01-31 16:01:28,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 35 remaining) [2024-01-31 16:01:28,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 35 remaining) [2024-01-31 16:01:28,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-31 16:01:28,534 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2024-01-31 16:01:28,540 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-31 16:01:28,540 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-31 16:01:28,561 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2024-01-31 16:01:28,573 INFO L503 ceAbstractionStarter]: Automizer considered 16 witness invariants [2024-01-31 16:01:28,574 INFO L504 ceAbstractionStarter]: WitnessConsidered=16 [2024-01-31 16:01:28,576 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:01:28 BasicIcfg [2024-01-31 16:01:28,576 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-31 16:01:28,592 INFO L158 Benchmark]: Toolchain (without parser) took 3700.59ms. Allocated memory was 167.8MB in the beginning and 245.4MB in the end (delta: 77.6MB). Free memory was 91.9MB in the beginning and 178.1MB in the end (delta: -86.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:01:28,592 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory was 74.4MB in the beginning and 74.3MB in the end (delta: 80.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:01:28,592 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 167.8MB. Free memory is still 98.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:01:28,593 INFO L158 Benchmark]: CACSL2BoogieTranslator took 761.79ms. Allocated memory is still 167.8MB. Free memory was 91.6MB in the beginning and 123.9MB in the end (delta: -32.3MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2024-01-31 16:01:28,593 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.55ms. Allocated memory is still 167.8MB. Free memory was 123.9MB in the beginning and 120.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-31 16:01:28,593 INFO L158 Benchmark]: Boogie Preprocessor took 62.94ms. Allocated memory is still 167.8MB. Free memory was 120.6MB in the beginning and 117.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-31 16:01:28,593 INFO L158 Benchmark]: RCFGBuilder took 582.74ms. Allocated memory is still 167.8MB. Free memory was 117.9MB in the beginning and 74.5MB in the end (delta: 43.4MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-01-31 16:01:28,593 INFO L158 Benchmark]: TraceAbstraction took 2218.36ms. Allocated memory was 167.8MB in the beginning and 245.4MB in the end (delta: 77.6MB). Free memory was 73.9MB in the beginning and 178.1MB in the end (delta: -104.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:01:28,595 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory was 74.4MB in the beginning and 74.3MB in the end (delta: 80.5kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.16ms. Allocated memory is still 167.8MB. Free memory is still 98.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 761.79ms. Allocated memory is still 167.8MB. Free memory was 91.6MB in the beginning and 123.9MB in the end (delta: -32.3MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.55ms. Allocated memory is still 167.8MB. Free memory was 123.9MB in the beginning and 120.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.94ms. Allocated memory is still 167.8MB. Free memory was 120.6MB in the beginning and 117.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 582.74ms. Allocated memory is still 167.8MB. Free memory was 117.9MB in the beginning and 74.5MB in the end (delta: 43.4MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2218.36ms. Allocated memory was 167.8MB in the beginning and 245.4MB in the end (delta: 77.6MB). Free memory was 73.9MB in the beginning and 178.1MB in the end (delta: -104.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 725]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L689] 0 volatile int max = 0x80000000, m = 0; [L700] 0 int storage[2*3]; [L700] 0 int storage[2*3]; [L700] 0 int storage[2*3]; [L700] 0 int storage[2*3]; [L700] 0 int storage[2*3]; [L700] 0 int storage[2*3]; [L700] 0 int storage[2*3]; [L730] 0 int i = 0; VAL [i=0, m=0, max=-2147483648, storage={3:0}] [L730] COND TRUE 0 i < 2*3 [L731] 0 storage[i] = __VERIFIER_nondet_int() [L730] 0 i++ VAL [i=1, m=0, max=-2147483648, storage={3:0}] [L730] COND TRUE 0 i < 2*3 [L731] 0 storage[i] = __VERIFIER_nondet_int() [L730] 0 i++ VAL [i=2, m=0, max=-2147483648, storage={3:0}] [L730] COND TRUE 0 i < 2*3 [L731] 0 storage[i] = __VERIFIER_nondet_int() [L730] 0 i++ VAL [i=3, m=0, max=-2147483648, storage={3:0}] [L730] COND TRUE 0 i < 2*3 [L731] 0 storage[i] = __VERIFIER_nondet_int() [L730] 0 i++ VAL [i=4, m=0, max=-2147483648, storage={3:0}] [L730] COND TRUE 0 i < 2*3 [L731] 0 storage[i] = __VERIFIER_nondet_int() [L730] 0 i++ VAL [i=5, m=0, max=-2147483648, storage={3:0}] [L730] COND TRUE 0 i < 2*3 [L731] 0 storage[i] = __VERIFIER_nondet_int() [L730] 0 i++ VAL [i=6, m=0, max=-2147483648, storage={3:0}] [L730] COND FALSE 0 !(i < 2*3) [L732] 0 pthread_t t; VAL [m=0, max=-2147483648, storage={3:0}, t={5:0}] [L733] COND TRUE 0 1 [L733] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [m=0, max=-2147483648, storage={3:0}, t={5:0}] [L724] 1 int offset=__VERIFIER_nondet_int(); [L725] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IdentifierExpression[offset],IntegerLiteral[2147483646]],BinaryExpression[COMPEQ,BinaryExpression[ARITHMOD,IdentifierExpression[offset],IntegerLiteral[2]],IntegerLiteral[0]]],BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]]] VAL [arg={0:0}, arg={0:0}, m=0, max=-2147483648, offset=-1, storage={3:0}] - UnprovableResult [Line: 726]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 727]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 733]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 99 locations, 35 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 6, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 227 IncrementalHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 0 mSDtfsCounter, 227 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=182occurred in iteration=3, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 94 SizeOfPredicates, 0 NumberOfNonLiveVariables, 203 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 0/33 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-01-31 16:01:28,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE