./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c --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/popl20-bad-buffer-mult-alt2.wvr.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/weaver/popl20-bad-buffer-mult-alt2.wvr.c ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/popl20-bad-buffer-mult-alt2.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.fix-undeclared-acsl-variable-e7c74ae-m [2024-02-07 19:15:36,986 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 19:15:37,046 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 19:15:37,053 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 19:15:37,054 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 19:15:37,069 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 19:15:37,070 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 19:15:37,071 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 19:15:37,071 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 19:15:37,072 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 19:15:37,072 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 19:15:37,073 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 19:15:37,073 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 19:15:37,075 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 19:15:37,075 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 19:15:37,075 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 19:15:37,076 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 19:15:37,080 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 19:15:37,080 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 19:15:37,080 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 19:15:37,080 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 19:15:37,081 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 19:15:37,081 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 19:15:37,081 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 19:15:37,081 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 19:15:37,081 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 19:15:37,082 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 19:15:37,082 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 19:15:37,082 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 19:15:37,082 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 19:15:37,083 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 19:15:37,083 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 19:15:37,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:15:37,084 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 19:15:37,084 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 19:15:37,084 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 19:15:37,085 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 19:15:37,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 19:15:37,085 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 19:15:37,085 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 19:15:37,085 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 19:15:37,085 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 19:15:37,086 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 19:15:37,086 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 19:15:37,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 19:15:37,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 19:15:37,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 19:15:37,305 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 19:15:37,305 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 19:15:37,306 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2024-02-07 19:15:38,366 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 19:15:38,544 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 19:15:38,545 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2024-02-07 19:15:38,556 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/443b433db/3d4232cf99bf4a478fc408389980d550/FLAG91e0a7ca1 [2024-02-07 19:15:38,573 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/443b433db/3d4232cf99bf4a478fc408389980d550 [2024-02-07 19:15:38,575 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 19:15:38,576 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 19:15:38,577 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/popl20-bad-buffer-mult-alt2.wvr.yml/witness.yml [2024-02-07 19:15:38,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 19:15:38,653 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 19:15:38,669 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 19:15:38,669 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 19:15:38,673 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 19:15:38,673 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:15:38" (1/2) ... [2024-02-07 19:15:38,674 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42af594f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:15:38, skipping insertion in model container [2024-02-07 19:15:38,674 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:15:38" (1/2) ... [2024-02-07 19:15:38,675 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@22624dff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:15:38, skipping insertion in model container [2024-02-07 19:15:38,675 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:15:38" (2/2) ... [2024-02-07 19:15:38,675 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42af594f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:15:38, skipping insertion in model container [2024-02-07 19:15:38,676 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:15:38" (2/2) ... [2024-02-07 19:15:38,676 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 19:15:38,704 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 19:15:38,705 INFO L76 edCorrectnessWitness]: Location invariant before [L112-L112] 0 <= j [2024-02-07 19:15:38,705 INFO L76 edCorrectnessWitness]: Location invariant after [L67-L67] 0 <= j [2024-02-07 19:15:38,705 INFO L76 edCorrectnessWitness]: Location invariant before [L67-L67] 0 <= j [2024-02-07 19:15:38,705 INFO L76 edCorrectnessWitness]: Location invariant before [L92-L92] -2147483647 <= q1_front [2024-02-07 19:15:38,706 INFO L76 edCorrectnessWitness]: Location invariant before [L137-L137] (-2147483647 <= N) && (M <= 2147483646) [2024-02-07 19:15:38,706 INFO L76 edCorrectnessWitness]: Location invariant before [L74-L74] 1 <= j [2024-02-07 19:15:38,706 INFO L76 edCorrectnessWitness]: Location invariant before [L49-L49] 0 <= i [2024-02-07 19:15:38,706 INFO L76 edCorrectnessWitness]: Location invariant before [L89-L89] 0 <= q1_front [2024-02-07 19:15:38,706 INFO L76 edCorrectnessWitness]: Location invariant before [L167-L167] (b <= -1) && (b != 0) [2024-02-07 19:15:38,706 INFO L76 edCorrectnessWitness]: Location invariant before [L71-L71] 0 <= q2_back [2024-02-07 19:15:38,706 INFO L76 edCorrectnessWitness]: Location invariant before [L161-L161] ((((((((8 <= i && i <= 2147483646) || i == 7) || i == 6) || i == 5) || i == 4) || i == 3) || i == 2) || i == 1) || (0 == i && i == 0) [2024-02-07 19:15:38,707 INFO L76 edCorrectnessWitness]: Location invariant after [L85-L85] 0 <= i [2024-02-07 19:15:38,707 INFO L76 edCorrectnessWitness]: Location invariant before [L58-L58] 0 <= i [2024-02-07 19:15:38,707 INFO L76 edCorrectnessWitness]: Location invariant before [L85-L85] 0 <= i [2024-02-07 19:15:38,707 INFO L76 edCorrectnessWitness]: Location invariant before [L107-L107] 0 <= q2_front [2024-02-07 19:15:38,707 INFO L76 edCorrectnessWitness]: Location invariant before [L55-L55] (-2147483647 <= q1_back) && (0 <= i) [2024-02-07 19:15:38,707 INFO L76 edCorrectnessWitness]: Location invariant before [L110-L110] -2147483647 <= q2_front [2024-02-07 19:15:38,707 INFO L76 edCorrectnessWitness]: Location invariant after [L103-L103] 0 <= j [2024-02-07 19:15:38,707 INFO L76 edCorrectnessWitness]: Location invariant before [L53-L53] 0 <= q1_back [2024-02-07 19:15:38,708 INFO L76 edCorrectnessWitness]: Location invariant before [L94-L94] 0 <= i [2024-02-07 19:15:38,708 INFO L76 edCorrectnessWitness]: Location invariant before [L73-L73] (-2147483647 <= q2_back) && (0 <= j) [2024-02-07 19:15:38,708 INFO L76 edCorrectnessWitness]: Location invariant before [L103-L103] 0 <= j [2024-02-07 19:15:38,708 INFO L76 edCorrectnessWitness]: Location invariant after [L49-L49] 0 <= i [2024-02-07 19:15:38,709 INFO L76 edCorrectnessWitness]: Location invariant before [L76-L76] 0 <= j [2024-02-07 19:15:38,709 INFO L76 edCorrectnessWitness]: Location invariant before [L56-L56] 1 <= i [2024-02-07 19:15:38,736 INFO L181 MainTranslator]: Built tables and reachable declarations [2024-02-07 19:15:38,877 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c[4226,4239] [2024-02-07 19:15:38,896 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:15:38,905 INFO L206 MainTranslator]: Completed pre-run [2024-02-07 19:15:38,921 WARN L423 MainDispatcher]: Unable to annotate _Bool with a witness entry [2024-02-07 19:15:38,921 WARN L423 MainDispatcher]: Unable to annotate cond = i < N with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 19:15:38,952 WARN L423 MainDispatcher]: Unable to annotate _Bool with a witness entry [2024-02-07 19:15:38,953 WARN L423 MainDispatcher]: Unable to annotate cond = j < M with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 19:15:38,957 WARN L423 MainDispatcher]: Unable to annotate _Bool with a witness entry [2024-02-07 19:15:38,957 WARN L423 MainDispatcher]: Unable to annotate cond = i < N || q1_front < q1_back with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 19:15:38,959 WARN L423 MainDispatcher]: Unable to annotate _Bool with a witness entry [2024-02-07 19:15:38,960 WARN L423 MainDispatcher]: Unable to annotate cond = j < M || q2_front < q2_back with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 19:15:38,966 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c[4226,4239] Start Parsing Local Start Parsing Local [2024-02-07 19:15:38,971 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:15:38,982 INFO L211 MainTranslator]: Completed translation [2024-02-07 19:15:38,983 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:15:38 WrapperNode [2024-02-07 19:15:38,983 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 19:15:38,985 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 19:15:38,985 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 19:15:38,985 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 19:15:38,990 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 07:15:38" (1/1) ... [2024-02-07 19:15:39,008 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 07:15:38" (1/1) ... [2024-02-07 19:15:39,031 INFO L138 Inliner]: procedures = 26, calls = 75, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 350 [2024-02-07 19:15:39,032 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 19:15:39,032 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 19:15:39,032 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 19:15:39,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 19:15:39,044 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 07:15:38" (1/1) ... [2024-02-07 19:15:39,044 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 07:15:38" (1/1) ... [2024-02-07 19:15:39,048 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 07:15:38" (1/1) ... [2024-02-07 19:15:39,063 INFO L175 MemorySlicer]: Split 16 memory accesses to 6 slices as follows [2, 2, 6, 2, 2, 2]. 38 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 6 writes are split as follows [0, 1, 2, 1, 1, 1]. [2024-02-07 19:15:39,063 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 07:15:38" (1/1) ... [2024-02-07 19:15:39,064 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 07:15:38" (1/1) ... [2024-02-07 19:15:39,072 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 07:15:38" (1/1) ... [2024-02-07 19:15:39,075 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 07:15:38" (1/1) ... [2024-02-07 19:15:39,077 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 07:15:38" (1/1) ... [2024-02-07 19:15:39,078 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 07:15:38" (1/1) ... [2024-02-07 19:15:39,081 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 19:15:39,082 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 19:15:39,082 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 19:15:39,082 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 19:15:39,091 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 07:15:38" (1/1) ... [2024-02-07 19:15:39,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:15:39,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 19:15:39,145 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 19:15:39,163 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 19:15:39,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 19:15:39,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 19:15:39,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 19:15:39,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 19:15:39,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 19:15:39,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 19:15:39,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-07 19:15:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-02-07 19:15:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-07 19:15:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-07 19:15:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-07 19:15:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-07 19:15:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-07 19:15:39,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-02-07 19:15:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-07 19:15:39,183 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-07 19:15:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-07 19:15:39,183 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-07 19:15:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-02-07 19:15:39,183 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-02-07 19:15:39,183 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-02-07 19:15:39,183 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-02-07 19:15:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 19:15:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 19:15:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 19:15:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 19:15:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-07 19:15:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-02-07 19:15:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-07 19:15:39,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-07 19:15:39,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-02-07 19:15:39,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 19:15:39,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 19:15:39,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 19:15:39,187 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 19:15:39,336 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 19:15:39,338 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 19:15:39,726 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 19:15:39,726 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 19:15:40,108 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 19:15:40,108 INFO L320 CfgBuilder]: Removed 6 assume(true) statements. [2024-02-07 19:15:40,109 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:15:40 BoogieIcfgContainer [2024-02-07 19:15:40,110 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 19:15:40,113 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 19:15:40,113 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 19:15:40,116 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 19:15:40,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 07:15:38" (1/4) ... [2024-02-07 19:15:40,117 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41407e98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:15:40, skipping insertion in model container [2024-02-07 19:15:40,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:15:38" (2/4) ... [2024-02-07 19:15:40,118 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41407e98 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:15:40, skipping insertion in model container [2024-02-07 19:15:40,119 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 07:15:38" (3/4) ... [2024-02-07 19:15:40,120 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41407e98 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:15:40, skipping insertion in model container [2024-02-07 19:15:40,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:15:40" (4/4) ... [2024-02-07 19:15:40,123 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt2.wvr.c [2024-02-07 19:15:40,138 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 19:15:40,138 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-02-07 19:15:40,138 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 19:15:40,209 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-02-07 19:15:40,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 73 transitions, 174 flow [2024-02-07 19:15:40,319 INFO L124 PetriNetUnfolderBase]: 6/69 cut-off events. [2024-02-07 19:15:40,319 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-02-07 19:15:40,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 69 events. 6/69 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 171 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2024-02-07 19:15:40,323 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 73 transitions, 174 flow [2024-02-07 19:15:40,326 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 68 transitions, 160 flow [2024-02-07 19:15:40,338 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 19:15:40,347 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;@1f4ccc72, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 19:15:40,347 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2024-02-07 19:15:40,350 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 19:15:40,350 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2024-02-07 19:15:40,350 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:15:40,351 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:15:40,351 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-02-07 19:15:40,351 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 37 more)] === [2024-02-07 19:15:40,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:15:40,356 INFO L85 PathProgramCache]: Analyzing trace with hash 975200, now seen corresponding path program 1 times [2024-02-07 19:15:40,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:15:40,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376472385] [2024-02-07 19:15:40,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:15:40,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:15:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:15:40,683 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 19:15:40,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:15:40,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376472385] [2024-02-07 19:15:40,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376472385] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:15:40,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:15:40,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:15:40,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065096892] [2024-02-07 19:15:40,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:15:40,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:15:40,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:15:40,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:15:40,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:15:40,740 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 73 [2024-02-07 19:15:40,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 68 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 19:15:40,743 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:15:40,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 73 [2024-02-07 19:15:40,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:15:44,262 INFO L124 PetriNetUnfolderBase]: 29964/38378 cut-off events. [2024-02-07 19:15:44,263 INFO L125 PetriNetUnfolderBase]: For 1030/1030 co-relation queries the response was YES. [2024-02-07 19:15:44,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75750 conditions, 38378 events. 29964/38378 cut-off events. For 1030/1030 co-relation queries the response was YES. Maximal size of possible extension queue 2655. Compared 226846 event pairs, 17110 based on Foata normal form. 0/20930 useless extension candidates. Maximal degree in co-relation 67181. Up to 36164 conditions per place. [2024-02-07 19:15:44,497 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 47 selfloop transitions, 5 changer transitions 0/68 dead transitions. [2024-02-07 19:15:44,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 68 transitions, 264 flow [2024-02-07 19:15:44,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:15:44,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:15:44,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 118 transitions. [2024-02-07 19:15:44,506 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5388127853881278 [2024-02-07 19:15:44,507 INFO L175 Difference]: Start difference. First operand has 75 places, 68 transitions, 160 flow. Second operand 3 states and 118 transitions. [2024-02-07 19:15:44,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 68 transitions, 264 flow [2024-02-07 19:15:44,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 68 transitions, 248 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-02-07 19:15:44,582 INFO L231 Difference]: Finished difference. Result has 67 places, 68 transitions, 176 flow [2024-02-07 19:15:44,586 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=67, PETRI_TRANSITIONS=68} [2024-02-07 19:15:44,589 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -8 predicate places. [2024-02-07 19:15:44,589 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 68 transitions, 176 flow [2024-02-07 19:15:44,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 19:15:44,593 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:15:44,593 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-07 19:15:44,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 19:15:44,594 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 37 more)] === [2024-02-07 19:15:44,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:15:44,594 INFO L85 PathProgramCache]: Analyzing trace with hash 30233013, now seen corresponding path program 1 times [2024-02-07 19:15:44,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:15:44,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690104980] [2024-02-07 19:15:44,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:15:44,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:15:44,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 19:15:44,645 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-07 19:15:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 19:15:44,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-07 19:15:44,721 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-07 19:15:44,722 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 40 remaining) [2024-02-07 19:15:44,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 40 remaining) [2024-02-07 19:15:44,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 40 remaining) [2024-02-07 19:15:44,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 40 remaining) [2024-02-07 19:15:44,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 40 remaining) [2024-02-07 19:15:44,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 40 remaining) [2024-02-07 19:15:44,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 40 remaining) [2024-02-07 19:15:44,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 40 remaining) [2024-02-07 19:15:44,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 40 remaining) [2024-02-07 19:15:44,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 40 remaining) [2024-02-07 19:15:44,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 40 remaining) [2024-02-07 19:15:44,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 40 remaining) [2024-02-07 19:15:44,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 40 remaining) [2024-02-07 19:15:44,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 40 remaining) [2024-02-07 19:15:44,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 40 remaining) [2024-02-07 19:15:44,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (24 of 40 remaining) [2024-02-07 19:15:44,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 40 remaining) [2024-02-07 19:15:44,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 40 remaining) [2024-02-07 19:15:44,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 40 remaining) [2024-02-07 19:15:44,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 40 remaining) [2024-02-07 19:15:44,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 40 remaining) [2024-02-07 19:15:44,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 40 remaining) [2024-02-07 19:15:44,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err2ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 40 remaining) [2024-02-07 19:15:44,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err3ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 40 remaining) [2024-02-07 19:15:44,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 40 remaining) [2024-02-07 19:15:44,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 40 remaining) [2024-02-07 19:15:44,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 40 remaining) [2024-02-07 19:15:44,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 40 remaining) [2024-02-07 19:15:44,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 40 remaining) [2024-02-07 19:15:44,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 40 remaining) [2024-02-07 19:15:44,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 40 remaining) [2024-02-07 19:15:44,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 40 remaining) [2024-02-07 19:15:44,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 40 remaining) [2024-02-07 19:15:44,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 40 remaining) [2024-02-07 19:15:44,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 40 remaining) [2024-02-07 19:15:44,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 40 remaining) [2024-02-07 19:15:44,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 40 remaining) [2024-02-07 19:15:44,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 40 remaining) [2024-02-07 19:15:44,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err2ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 40 remaining) [2024-02-07 19:15:44,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err3ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 40 remaining) [2024-02-07 19:15:44,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 19:15:44,733 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-02-07 19:15:44,738 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-07 19:15:44,738 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-07 19:15:44,757 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2024-02-07 19:15:44,758 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2024-02-07 19:15:44,771 INFO L503 ceAbstractionStarter]: Automizer considered 19 witness invariants [2024-02-07 19:15:44,771 INFO L504 ceAbstractionStarter]: WitnessConsidered=19 [2024-02-07 19:15:44,772 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 07:15:44 BasicIcfg [2024-02-07 19:15:44,773 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-07 19:15:44,773 INFO L158 Benchmark]: Toolchain (without parser) took 6120.03ms. Allocated memory was 163.6MB in the beginning and 1.0GB in the end (delta: 847.2MB). Free memory was 90.4MB in the beginning and 444.9MB in the end (delta: -354.5MB). Peak memory consumption was 495.0MB. Max. memory is 16.1GB. [2024-02-07 19:15:44,773 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 19:15:44,774 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 163.6MB. Free memory is still 93.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 19:15:44,774 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.11ms. Allocated memory is still 163.6MB. Free memory was 90.1MB in the beginning and 71.8MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-02-07 19:15:44,774 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.19ms. Allocated memory is still 163.6MB. Free memory was 71.8MB in the beginning and 68.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 19:15:44,774 INFO L158 Benchmark]: Boogie Preprocessor took 49.39ms. Allocated memory is still 163.6MB. Free memory was 68.8MB in the beginning and 65.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-02-07 19:15:44,775 INFO L158 Benchmark]: RCFGBuilder took 1027.51ms. Allocated memory is still 163.6MB. Free memory was 65.2MB in the beginning and 71.4MB in the end (delta: -6.1MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2024-02-07 19:15:44,775 INFO L158 Benchmark]: TraceAbstraction took 4659.95ms. Allocated memory was 163.6MB in the beginning and 1.0GB in the end (delta: 847.2MB). Free memory was 71.4MB in the beginning and 444.9MB in the end (delta: -373.6MB). Peak memory consumption was 474.7MB. Max. memory is 16.1GB. [2024-02-07 19:15:44,776 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 163.6MB. Free memory is still 93.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 315.11ms. Allocated memory is still 163.6MB. Free memory was 90.1MB in the beginning and 71.8MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.19ms. Allocated memory is still 163.6MB. Free memory was 71.8MB in the beginning and 68.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.39ms. Allocated memory is still 163.6MB. Free memory was 68.8MB in the beginning and 65.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1027.51ms. Allocated memory is still 163.6MB. Free memory was 65.2MB in the beginning and 71.4MB in the end (delta: -6.1MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4659.95ms. Allocated memory was 163.6MB in the beginning and 1.0GB in the end (delta: 847.2MB). Free memory was 71.4MB in the beginning and 444.9MB in the end (delta: -373.6MB). Peak memory consumption was 474.7MB. 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 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: 137]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L40] int* q1; [L41] int* q2; [L42] int i, j, total, C, N, M, q1_front, q1_back, q2_front, q2_back, n1, n2; [L120] pthread_t t1, t2, t3, t4; [L122] C = __VERIFIER_nondet_int() [L123] M = __VERIFIER_nondet_int() [L124] N = __VERIFIER_nondet_int() [L126] q1_front = __VERIFIER_nondet_int() [L127] q1_back = __VERIFIER_nondet_int() [L128] q2_front = __VERIFIER_nondet_int() [L129] q2_back = __VERIFIER_nondet_int() [L131] n1 = __VERIFIER_nondet_int() [L132] n2 = __VERIFIER_nondet_int() [L133] CALL, EXPR create_fresh_int_array(n1) [L156] CALL assume_abort_if_not(size >= 0) [L37] COND FALSE !(!cond) [L156] RET assume_abort_if_not(size >= 0) [L157] CALL assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L37] COND FALSE !(!cond) [L157] RET assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L159] int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L160] int i = 0; VAL [C=0, M=2147483647, N=-2147483648, \old(size)=0, arr={-1:0}, i=0, i=0, j=0, n1=0, n2=0, q1={0:0}, q1_back=0, q1_front=0, q2={0:0}, q2_back=0, q2_front=0, size=0, total=0] [L160] COND FALSE !(i < size) [L163] return arr; [L133] RET, EXPR create_fresh_int_array(n1) [L133] q1 = create_fresh_int_array(n1) [L134] CALL, EXPR create_fresh_int_array(n2) [L156] CALL assume_abort_if_not(size >= 0) [L37] COND FALSE !(!cond) [L156] RET assume_abort_if_not(size >= 0) [L157] CALL assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L37] COND FALSE !(!cond) [L157] RET assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L159] int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L160] int i = 0; VAL [C=0, M=2147483647, N=-2147483648, \old(size)=0, arr={-2:0}, i=0, i=0, j=0, n1=0, n2=0, q1={-1:0}, q1_back=0, q1_front=0, q2={0:0}, q2_back=0, q2_front=0, size=0, total=0] [L160] COND FALSE !(i < size) [L163] return arr; [L134] RET, EXPR create_fresh_int_array(n2) [L134] q2 = create_fresh_int_array(n2) [L136] CALL assume_abort_if_not(C > -2147483648) [L37] COND FALSE !(!cond) [L136] RET assume_abort_if_not(C > -2147483648) [L137] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,UnaryExpression[MINUS,IntegerLiteral[2147483647]],IdentifierExpression[N]],BinaryExpression[COMPLEQ,IdentifierExpression[M],IntegerLiteral[2147483646]]]]] VAL [C=0, M=2147483647, N=-2147483648, i=0, j=0, n1=0, n2=0, q1={-1:0}, q1_back=0, q1_front=0, q2={-2:0}, q2_back=0, q2_front=0, t1={3:0}, t2={6:0}, t3={7:0}, t4={5:0}, total=0] - UnprovableResult [Line: 53]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 55]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 58]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 76]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 89]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 167]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 92]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 94]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 161]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 161]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 150]: 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: 140]: 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. - UnprovableResult [Line: 141]: 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. - UnprovableResult [Line: 143]: 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. - UnprovableResult [Line: 142]: 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. - UnprovableResult [Line: 107]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 167]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 110]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 112]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 112 locations, 40 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: 4.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 96 IncrementalHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 96 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=176occurred in iteration=1, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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! [2024-02-07 19:15:44,814 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE