./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/chl-exp-term-subst.wvr.c --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/chl-exp-term-subst.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3d25acf6 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/chl-exp-term-subst.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/chl-exp-term-subst.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-dev-3d25acf-m [2024-01-30 14:23:08,923 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-30 14:23:08,993 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-30 14:23:09,002 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-30 14:23:09,002 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-30 14:23:09,030 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-30 14:23:09,034 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-30 14:23:09,035 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-30 14:23:09,035 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-30 14:23:09,039 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-30 14:23:09,039 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-30 14:23:09,039 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-30 14:23:09,040 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-30 14:23:09,042 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-30 14:23:09,042 INFO L153 SettingsManager]: * Use SBE=true [2024-01-30 14:23:09,042 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-30 14:23:09,042 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-30 14:23:09,043 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-30 14:23:09,043 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-30 14:23:09,043 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-30 14:23:09,043 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-30 14:23:09,044 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-30 14:23:09,044 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-30 14:23:09,044 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-30 14:23:09,044 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-30 14:23:09,045 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-30 14:23:09,045 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-30 14:23:09,045 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-30 14:23:09,046 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-30 14:23:09,046 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-30 14:23:09,047 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-30 14:23:09,047 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-30 14:23:09,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:23:09,048 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-30 14:23:09,048 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-30 14:23:09,048 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-30 14:23:09,048 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-30 14:23:09,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-30 14:23:09,049 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-30 14:23:09,049 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-30 14:23:09,049 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-30 14:23:09,049 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-30 14:23:09,050 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-30 14:23:09,050 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-30 14:23:09,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-30 14:23:09,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-30 14:23:09,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-30 14:23:09,318 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-30 14:23:09,318 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-30 14:23:09,319 INFO L431 ainManager$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/chl-exp-term-subst.wvr.yml/witness.yml [2024-01-30 14:23:09,466 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-30 14:23:09,469 INFO L274 PluginConnector]: CDTParser initialized [2024-01-30 14:23:09,471 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-exp-term-subst.wvr.c [2024-01-30 14:23:10,650 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-30 14:23:10,858 INFO L384 CDTParser]: Found 1 translation units. [2024-01-30 14:23:10,861 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-subst.wvr.c [2024-01-30 14:23:10,867 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb84a0461/0ab27c3fa35d402091ae5036a337b228/FLAGb8da9eee3 [2024-01-30 14:23:10,880 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb84a0461/0ab27c3fa35d402091ae5036a337b228 [2024-01-30 14:23:10,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-30 14:23:10,882 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-30 14:23:10,886 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-30 14:23:10,886 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-30 14:23:10,890 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-30 14:23:10,891 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:23:09" (1/2) ... [2024-01-30 14:23:10,892 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27a99895 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:23:10, skipping insertion in model container [2024-01-30 14:23:10,892 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:23:09" (1/2) ... [2024-01-30 14:23:10,893 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@25df32f6 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:23:10, skipping insertion in model container [2024-01-30 14:23:10,894 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:23:10" (2/2) ... [2024-01-30 14:23:10,894 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27a99895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:23:10, skipping insertion in model container [2024-01-30 14:23:10,894 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:23:10" (2/2) ... [2024-01-30 14:23:10,895 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-30 14:23:10,920 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-30 14:23:10,921 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] (b <= -1) && (b != 0) [2024-01-30 14:23:10,921 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (((((result_6 == 0) && (result_7 == 0)) && (result_8 == 0)) && (sort_label_is_null_3 == (_Bool)0)) && (sort_label_is_null_5 == (_Bool)0)) && (sort_label_is_null_1 == (_Bool)0 || sort_label_is_null_1 == (_Bool)1) [2024-01-30 14:23:10,922 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] (((((((sort_label_2 == 0) && (sort_label_4 == 0)) && (result_6 == 0)) && (result_7 == 0)) && (result_8 == 0)) && (sort_label_is_null_1 == (_Bool)0)) && (sort_label_is_null_3 == (_Bool)0)) && (sort_label_is_null_5 == (_Bool)0) [2024-01-30 14:23:10,922 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-30 14:23:10,922 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-30 14:23:10,922 INFO L98 nessWitnessExtractor]: Location invariant before [L46-L46] (unsigned long )_argptr == 0UL [2024-01-30 14:23:10,922 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-30 14:23:10,922 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (((((result_6 == 0) && (result_7 == 0)) && (result_8 == 0)) && (sort_label_is_null_5 == (_Bool)0)) && (sort_label_is_null_1 == (_Bool)0 || sort_label_is_null_1 == (_Bool)1)) && (sort_label_is_null_3 == (_Bool)0 || sort_label_is_null_3 == (_Bool)1) [2024-01-30 14:23:10,923 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] (unsigned long )_argptr == 0UL [2024-01-30 14:23:10,923 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-30 14:23:10,923 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (((((result_6 == 0) && (result_7 == 0)) && (result_8 == 0)) && (sort_label_is_null_1 == (_Bool)0)) && (sort_label_is_null_3 == (_Bool)0)) && (sort_label_is_null_5 == (_Bool)0) [2024-01-30 14:23:10,923 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] ((((((sort_label_4 == 0) && (result_6 == 0)) && (result_7 == 0)) && (result_8 == 0)) && (sort_label_is_null_1 == (_Bool)0)) && (sort_label_is_null_3 == (_Bool)0)) && (sort_label_is_null_5 == (_Bool)0) [2024-01-30 14:23:10,923 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] ((((((result_6 == 0) && (result_7 == 0)) && (result_8 == 0)) && (sort_label_is_null_5 == (_Bool)0)) && (sort_label_is_null_1 == (_Bool)0 || sort_label_is_null_1 == (_Bool)1)) && (sort_label_is_null_3 == (_Bool)0 || sort_label_is_null_3 == (_Bool)1)) && (val == (_Bool)0 || val == (_Bool)1) [2024-01-30 14:23:10,924 INFO L98 nessWitnessExtractor]: Location invariant before [L22-L25] ((((((sort_label_4 == 0) && (result_6 == 0)) && (result_7 == 0)) && (result_8 == 0)) && (sort_label_is_null_1 == (_Bool)0)) && (sort_label_is_null_3 == (_Bool)0)) && (sort_label_is_null_5 == (_Bool)0) [2024-01-30 14:23:10,924 INFO L98 nessWitnessExtractor]: Location invariant before [L72-L72] (((((result_6 == 0) && (result_7 == 0)) && (result_8 == 0)) && (sort_label_is_null_1 == (_Bool)0 || sort_label_is_null_1 == (_Bool)1)) && (sort_label_is_null_3 == (_Bool)0 || sort_label_is_null_3 == (_Bool)1)) && (sort_label_is_null_5 == (_Bool)0 || sort_label_is_null_5 == (_Bool)1) [2024-01-30 14:23:10,924 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] ((((((((sort_label_0 == 0) && (sort_label_2 == 0)) && (sort_label_4 == 0)) && (result_6 == 0)) && (result_7 == 0)) && (result_8 == 0)) && (sort_label_is_null_1 == (_Bool)0)) && (sort_label_is_null_3 == (_Bool)0)) && (sort_label_is_null_5 == (_Bool)0) [2024-01-30 14:23:10,924 INFO L98 nessWitnessExtractor]: Location invariant before [L87-L87] (1 <= b) && (b != 0) [2024-01-30 14:23:10,945 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-30 14:23:11,120 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/chl-exp-term-subst.wvr.c[3111,3124] [2024-01-30 14:23:11,126 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:23:11,138 INFO L202 MainTranslator]: Completed pre-run [2024-01-30 14:23:11,159 WARN L424 MainDispatcher]: Unable to annotate __assert_fail(const char *__assertion, const char *__file, unsigned int __line, const char *__function) with a witness entry [2024-01-30 14:23:11,160 WARN L424 MainDispatcher]: Unable to annotate extern int pthread_create (pthread_t *__restrict __newthread, const pthread_attr_t *__restrict __attr, void *(*__start_routine) (void *), void *__restrict __arg) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 3))); 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 Start Parsing Local Start Parsing Local [2024-01-30 14:23:11,224 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/chl-exp-term-subst.wvr.c[3111,3124] Start Parsing Local Start Parsing Local [2024-01-30 14:23:11,232 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:23:11,246 INFO L206 MainTranslator]: Completed translation [2024-01-30 14:23:11,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:23:11 WrapperNode [2024-01-30 14:23:11,260 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-30 14:23:11,262 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-30 14:23:11,269 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-30 14:23:11,270 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-30 14:23:11,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:23:11" (1/1) ... [2024-01-30 14:23:11,284 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:23:11" (1/1) ... [2024-01-30 14:23:11,323 INFO L138 Inliner]: procedures = 23, calls = 31, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 203 [2024-01-30 14:23:11,326 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-30 14:23:11,327 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-30 14:23:11,327 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-30 14:23:11,328 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-30 14:23:11,340 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:23:11" (1/1) ... [2024-01-30 14:23:11,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:23:11" (1/1) ... [2024-01-30 14:23:11,357 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:23:11" (1/1) ... [2024-01-30 14:23:11,376 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-01-30 14:23:11,377 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:23:11" (1/1) ... [2024-01-30 14:23:11,377 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:23:11" (1/1) ... [2024-01-30 14:23:11,391 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:23:11" (1/1) ... [2024-01-30 14:23:11,394 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:23:11" (1/1) ... [2024-01-30 14:23:11,399 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:23:11" (1/1) ... [2024-01-30 14:23:11,400 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:23:11" (1/1) ... [2024-01-30 14:23:11,403 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-30 14:23:11,404 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-30 14:23:11,404 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-30 14:23:11,404 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-30 14:23:11,405 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:23:11" (1/1) ... [2024-01-30 14:23:11,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:23:11,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-30 14:23:11,430 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) [2024-01-30 14:23:11,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-30 14:23:11,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-30 14:23:11,456 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-30 14:23:11,457 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-30 14:23:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-30 14:23:11,457 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-30 14:23:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-30 14:23:11,457 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-30 14:23:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-30 14:23:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-30 14:23:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-30 14:23:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-30 14:23:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-30 14:23:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-30 14:23:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-30 14:23:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-30 14:23:11,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-30 14:23:11,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-30 14:23:11,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-30 14:23:11,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-30 14:23:11,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-30 14:23:11,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-30 14:23:11,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-30 14:23:11,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-30 14:23:11,461 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-30 14:23:11,567 INFO L244 CfgBuilder]: Building ICFG [2024-01-30 14:23:11,569 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-30 14:23:11,953 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-30 14:23:11,953 INFO L293 CfgBuilder]: Performing block encoding [2024-01-30 14:23:12,257 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-30 14:23:12,257 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-30 14:23:12,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:23:12 BoogieIcfgContainer [2024-01-30 14:23:12,259 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-30 14:23:12,262 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-30 14:23:12,262 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-30 14:23:12,265 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-30 14:23:12,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:23:09" (1/4) ... [2024-01-30 14:23:12,266 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@672748cb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:23:12, skipping insertion in model container [2024-01-30 14:23:12,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:23:10" (2/4) ... [2024-01-30 14:23:12,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@672748cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:23:12, skipping insertion in model container [2024-01-30 14:23:12,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:23:11" (3/4) ... [2024-01-30 14:23:12,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@672748cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:23:12, skipping insertion in model container [2024-01-30 14:23:12,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:23:12" (4/4) ... [2024-01-30 14:23:12,271 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-subst.wvr.c [2024-01-30 14:23:12,287 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-30 14:23:12,288 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-01-30 14:23:12,288 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-30 14:23:12,375 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-01-30 14:23:12,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 86 transitions, 193 flow [2024-01-30 14:23:12,475 INFO L124 PetriNetUnfolderBase]: 9/83 cut-off events. [2024-01-30 14:23:12,475 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-30 14:23:12,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 83 events. 9/83 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 219 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2024-01-30 14:23:12,479 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 86 transitions, 193 flow [2024-01-30 14:23:12,488 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 82 transitions, 182 flow [2024-01-30 14:23:12,506 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:23:12,516 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;@73f6da2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:23:12,516 INFO L358 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-01-30 14:23:12,518 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:23:12,518 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-30 14:23:12,519 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:23:12,519 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:23:12,520 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-30 14:23:12,520 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 32 more)] === [2024-01-30 14:23:12,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:23:12,524 INFO L85 PathProgramCache]: Analyzing trace with hash 18866, now seen corresponding path program 1 times [2024-01-30 14:23:12,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:23:12,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668689762] [2024-01-30 14:23:12,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:23:12,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:23:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:23:12,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:23:12,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:23:12,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668689762] [2024-01-30 14:23:12,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668689762] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:23:12,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:23:12,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:23:12,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752740928] [2024-01-30 14:23:12,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:23:12,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:23:13,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:23:13,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:23:13,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:23:13,071 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 86 [2024-01-30 14:23:13,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 82 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-01-30 14:23:13,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:23:13,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 86 [2024-01-30 14:23:13,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:23:13,986 INFO L124 PetriNetUnfolderBase]: 4656/7297 cut-off events. [2024-01-30 14:23:13,986 INFO L125 PetriNetUnfolderBase]: For 263/263 co-relation queries the response was YES. [2024-01-30 14:23:14,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13739 conditions, 7297 events. 4656/7297 cut-off events. For 263/263 co-relation queries the response was YES. Maximal size of possible extension queue 572. Compared 50445 event pairs, 3768 based on Foata normal form. 0/5967 useless extension candidates. Maximal degree in co-relation 12562. Up to 6164 conditions per place. [2024-01-30 14:23:14,056 INFO L140 encePairwiseOnDemand]: 83/86 looper letters, 51 selfloop transitions, 2 changer transitions 0/81 dead transitions. [2024-01-30 14:23:14,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 81 transitions, 286 flow [2024-01-30 14:23:14,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:23:14,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:23:14,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 147 transitions. [2024-01-30 14:23:14,072 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5697674418604651 [2024-01-30 14:23:14,073 INFO L175 Difference]: Start difference. First operand has 83 places, 82 transitions, 182 flow. Second operand 3 states and 147 transitions. [2024-01-30 14:23:14,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 81 transitions, 286 flow [2024-01-30 14:23:14,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 81 transitions, 274 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-01-30 14:23:14,089 INFO L231 Difference]: Finished difference. Result has 78 places, 81 transitions, 172 flow [2024-01-30 14:23:14,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=78, PETRI_TRANSITIONS=81} [2024-01-30 14:23:14,097 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, -5 predicate places. [2024-01-30 14:23:14,098 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 81 transitions, 172 flow [2024-01-30 14:23:14,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-01-30 14:23:14,098 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:23:14,099 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-30 14:23:14,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-30 14:23:14,099 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 32 more)] === [2024-01-30 14:23:14,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:23:14,100 INFO L85 PathProgramCache]: Analyzing trace with hash 585491, now seen corresponding path program 1 times [2024-01-30 14:23:14,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:23:14,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344728371] [2024-01-30 14:23:14,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:23:14,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:23:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:23:14,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:23:14,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:23:14,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344728371] [2024-01-30 14:23:14,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344728371] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:23:14,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:23:14,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:23:14,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501572108] [2024-01-30 14:23:14,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:23:14,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:23:14,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:23:14,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:23:14,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:23:14,317 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 86 [2024-01-30 14:23:14,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 81 transitions, 172 flow. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-01-30 14:23:14,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:23:14,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 86 [2024-01-30 14:23:14,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:23:15,008 INFO L124 PetriNetUnfolderBase]: 3624/5806 cut-off events. [2024-01-30 14:23:15,008 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-01-30 14:23:15,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10816 conditions, 5806 events. 3624/5806 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 680. Compared 43327 event pairs, 2973 based on Foata normal form. 0/4967 useless extension candidates. Maximal degree in co-relation 10807. Up to 4931 conditions per place. [2024-01-30 14:23:15,115 INFO L140 encePairwiseOnDemand]: 83/86 looper letters, 48 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2024-01-30 14:23:15,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 80 transitions, 270 flow [2024-01-30 14:23:15,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:23:15,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:23:15,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 153 transitions. [2024-01-30 14:23:15,122 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5930232558139535 [2024-01-30 14:23:15,122 INFO L175 Difference]: Start difference. First operand has 78 places, 81 transitions, 172 flow. Second operand 3 states and 153 transitions. [2024-01-30 14:23:15,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 80 transitions, 270 flow [2024-01-30 14:23:15,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 80 transitions, 266 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:23:15,125 INFO L231 Difference]: Finished difference. Result has 77 places, 80 transitions, 170 flow [2024-01-30 14:23:15,126 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=77, PETRI_TRANSITIONS=80} [2024-01-30 14:23:15,126 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, -6 predicate places. [2024-01-30 14:23:15,127 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 80 transitions, 170 flow [2024-01-30 14:23:15,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-01-30 14:23:15,127 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:23:15,127 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-30 14:23:15,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-30 14:23:15,128 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 32 more)] === [2024-01-30 14:23:15,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:23:15,128 INFO L85 PathProgramCache]: Analyzing trace with hash 18150822, now seen corresponding path program 1 times [2024-01-30 14:23:15,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:23:15,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657884990] [2024-01-30 14:23:15,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:23:15,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:23:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:23:15,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:23:15,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:23:15,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657884990] [2024-01-30 14:23:15,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657884990] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:23:15,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:23:15,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:23:15,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740285126] [2024-01-30 14:23:15,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:23:15,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:23:15,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:23:15,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:23:15,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:23:15,264 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 86 [2024-01-30 14:23:15,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 80 transitions, 170 flow. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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) [2024-01-30 14:23:15,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:23:15,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 86 [2024-01-30 14:23:15,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:23:15,728 INFO L124 PetriNetUnfolderBase]: 3167/5227 cut-off events. [2024-01-30 14:23:15,729 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-01-30 14:23:15,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9736 conditions, 5227 events. 3167/5227 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 644. Compared 40251 event pairs, 2653 based on Foata normal form. 0/4411 useless extension candidates. Maximal degree in co-relation 9725. Up to 4429 conditions per place. [2024-01-30 14:23:15,767 INFO L140 encePairwiseOnDemand]: 83/86 looper letters, 46 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2024-01-30 14:23:15,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 79 transitions, 264 flow [2024-01-30 14:23:15,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:23:15,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:23:15,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 157 transitions. [2024-01-30 14:23:15,769 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6085271317829457 [2024-01-30 14:23:15,770 INFO L175 Difference]: Start difference. First operand has 77 places, 80 transitions, 170 flow. Second operand 3 states and 157 transitions. [2024-01-30 14:23:15,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 79 transitions, 264 flow [2024-01-30 14:23:15,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 79 transitions, 260 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:23:15,772 INFO L231 Difference]: Finished difference. Result has 76 places, 79 transitions, 168 flow [2024-01-30 14:23:15,773 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=76, PETRI_TRANSITIONS=79} [2024-01-30 14:23:15,774 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, -7 predicate places. [2024-01-30 14:23:15,774 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 79 transitions, 168 flow [2024-01-30 14:23:15,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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) [2024-01-30 14:23:15,775 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:23:15,775 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-30 14:23:15,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-30 14:23:15,775 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 32 more)] === [2024-01-30 14:23:15,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:23:15,776 INFO L85 PathProgramCache]: Analyzing trace with hash 562676101, now seen corresponding path program 1 times [2024-01-30 14:23:15,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:23:15,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163065063] [2024-01-30 14:23:15,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:23:15,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:23:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:23:15,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:23:15,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:23:15,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163065063] [2024-01-30 14:23:15,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163065063] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:23:15,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:23:15,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:23:15,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024079917] [2024-01-30 14:23:15,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:23:15,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:23:15,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:23:15,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:23:15,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:23:15,935 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 86 [2024-01-30 14:23:15,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 79 transitions, 168 flow. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 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) [2024-01-30 14:23:15,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:23:15,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 86 [2024-01-30 14:23:15,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:23:16,440 INFO L124 PetriNetUnfolderBase]: 3167/5227 cut-off events. [2024-01-30 14:23:16,441 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-01-30 14:23:16,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9735 conditions, 5227 events. 3167/5227 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 40357 event pairs, 1163 based on Foata normal form. 0/4442 useless extension candidates. Maximal degree in co-relation 9722. Up to 2667 conditions per place. [2024-01-30 14:23:16,470 INFO L140 encePairwiseOnDemand]: 80/86 looper letters, 68 selfloop transitions, 5 changer transitions 0/104 dead transitions. [2024-01-30 14:23:16,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 104 transitions, 366 flow [2024-01-30 14:23:16,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:23:16,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:23:16,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 222 transitions. [2024-01-30 14:23:16,473 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6453488372093024 [2024-01-30 14:23:16,473 INFO L175 Difference]: Start difference. First operand has 76 places, 79 transitions, 168 flow. Second operand 4 states and 222 transitions. [2024-01-30 14:23:16,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 104 transitions, 366 flow [2024-01-30 14:23:16,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 104 transitions, 362 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:23:16,476 INFO L231 Difference]: Finished difference. Result has 77 places, 81 transitions, 188 flow [2024-01-30 14:23:16,477 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=188, PETRI_PLACES=77, PETRI_TRANSITIONS=81} [2024-01-30 14:23:16,478 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, -6 predicate places. [2024-01-30 14:23:16,478 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 81 transitions, 188 flow [2024-01-30 14:23:16,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 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) [2024-01-30 14:23:16,479 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:23:16,479 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-30 14:23:16,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-30 14:23:16,479 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 32 more)] === [2024-01-30 14:23:16,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:23:16,480 INFO L85 PathProgramCache]: Analyzing trace with hash 263090579, now seen corresponding path program 1 times [2024-01-30 14:23:16,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:23:16,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128224709] [2024-01-30 14:23:16,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:23:16,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:23:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-30 14:23:16,497 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-30 14:23:16,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-30 14:23:16,529 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-30 14:23:16,530 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-30 14:23:16,531 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 35 remaining) [2024-01-30 14:23:16,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 35 remaining) [2024-01-30 14:23:16,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 35 remaining) [2024-01-30 14:23:16,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 35 remaining) [2024-01-30 14:23:16,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 35 remaining) [2024-01-30 14:23:16,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 35 remaining) [2024-01-30 14:23:16,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 35 remaining) [2024-01-30 14:23:16,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 35 remaining) [2024-01-30 14:23:16,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 35 remaining) [2024-01-30 14:23:16,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 35 remaining) [2024-01-30 14:23:16,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 35 remaining) [2024-01-30 14:23:16,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 35 remaining) [2024-01-30 14:23:16,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 35 remaining) [2024-01-30 14:23:16,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 35 remaining) [2024-01-30 14:23:16,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 35 remaining) [2024-01-30 14:23:16,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 35 remaining) [2024-01-30 14:23:16,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 35 remaining) [2024-01-30 14:23:16,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 35 remaining) [2024-01-30 14:23:16,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 35 remaining) [2024-01-30 14:23:16,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (15 of 35 remaining) [2024-01-30 14:23:16,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 35 remaining) [2024-01-30 14:23:16,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 35 remaining) [2024-01-30 14:23:16,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 35 remaining) [2024-01-30 14:23:16,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 35 remaining) [2024-01-30 14:23:16,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 35 remaining) [2024-01-30 14:23:16,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 35 remaining) [2024-01-30 14:23:16,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 35 remaining) [2024-01-30 14:23:16,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 35 remaining) [2024-01-30 14:23:16,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 35 remaining) [2024-01-30 14:23:16,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 35 remaining) [2024-01-30 14:23:16,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 35 remaining) [2024-01-30 14:23:16,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 35 remaining) [2024-01-30 14:23:16,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 35 remaining) [2024-01-30 14:23:16,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 35 remaining) [2024-01-30 14:23:16,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 35 remaining) [2024-01-30 14:23:16,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-30 14:23:16,545 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-01-30 14:23:16,551 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-30 14:23:16,552 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-30 14:23:16,575 INFO L503 ceAbstractionStarter]: Automizer considered 19 witness invariants [2024-01-30 14:23:16,575 INFO L504 ceAbstractionStarter]: WitnessConsidered=19 [2024-01-30 14:23:16,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 02:23:16 BasicIcfg [2024-01-30 14:23:16,576 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-30 14:23:16,577 INFO L158 Benchmark]: Toolchain (without parser) took 5694.63ms. Allocated memory was 172.0MB in the beginning and 771.8MB in the end (delta: 599.8MB). Free memory was 137.9MB in the beginning and 599.8MB in the end (delta: -461.8MB). Peak memory consumption was 138.4MB. Max. memory is 16.1GB. [2024-01-30 14:23:16,577 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 123.7MB. Free memory was 97.4MB in the beginning and 97.2MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:23:16,577 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 123.7MB. Free memory is still 92.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:23:16,578 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.19ms. Allocated memory is still 172.0MB. Free memory was 137.3MB in the beginning and 121.9MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-01-30 14:23:16,578 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.27ms. Allocated memory is still 172.0MB. Free memory was 121.2MB in the beginning and 119.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:23:16,578 INFO L158 Benchmark]: Boogie Preprocessor took 76.75ms. Allocated memory is still 172.0MB. Free memory was 119.1MB in the beginning and 116.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:23:16,579 INFO L158 Benchmark]: RCFGBuilder took 854.85ms. Allocated memory is still 172.0MB. Free memory was 116.4MB in the beginning and 115.3MB in the end (delta: 1.1MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-01-30 14:23:16,579 INFO L158 Benchmark]: TraceAbstraction took 4314.28ms. Allocated memory was 172.0MB in the beginning and 771.8MB in the end (delta: 599.8MB). Free memory was 114.2MB in the beginning and 599.8MB in the end (delta: -485.6MB). Peak memory consumption was 117.3MB. Max. memory is 16.1GB. [2024-01-30 14:23:16,580 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.17ms. Allocated memory is still 123.7MB. Free memory was 97.4MB in the beginning and 97.2MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.17ms. Allocated memory is still 123.7MB. Free memory is still 92.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 375.19ms. Allocated memory is still 172.0MB. Free memory was 137.3MB in the beginning and 121.9MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.27ms. Allocated memory is still 172.0MB. Free memory was 121.2MB in the beginning and 119.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.75ms. Allocated memory is still 172.0MB. Free memory was 119.1MB in the beginning and 116.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 854.85ms. Allocated memory is still 172.0MB. Free memory was 116.4MB in the beginning and 115.3MB in the end (delta: 1.1MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4314.28ms. Allocated memory was 172.0MB in the beginning and 771.8MB in the end (delta: 599.8MB). Free memory was 114.2MB in the beginning and 599.8MB in the end (delta: -485.6MB). Peak memory consumption was 117.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 68]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L38] int sort_label_0, sort_label_2, sort_label_4, result_6, result_7, result_8; [L39] _Bool sort_label_is_null_1, sort_label_is_null_3, sort_label_is_null_5; [L62] pthread_t t1, t2, t3; VAL [result_6=0, result_7=0, result_8=0, sort_label_0=0, sort_label_2=0, sort_label_4=0, sort_label_is_null_1=0, sort_label_is_null_3=0, sort_label_is_null_5=0, t1={5:0}, t2={6:0}, t3={3:0}] [L64] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[sort_label_0],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[sort_label_2],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[sort_label_4],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[result_6],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[result_7],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[result_8],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[sort_label_is_null_1],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]],BinaryExpression[COMPEQ,IdentifierExpression[sort_label_is_null_3],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]],BinaryExpression[COMPEQ,IdentifierExpression[sort_label_is_null_5],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]]] [L64] sort_label_0 = __VERIFIER_nondet_int() [L65] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[sort_label_2],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[sort_label_4],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[result_6],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[result_7],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[result_8],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[sort_label_is_null_1],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]],BinaryExpression[COMPEQ,IdentifierExpression[sort_label_is_null_3],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]],BinaryExpression[COMPEQ,IdentifierExpression[sort_label_is_null_5],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]]] [L65] sort_label_2 = __VERIFIER_nondet_int() [L66] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[sort_label_4],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[result_6],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[result_7],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[result_8],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[sort_label_is_null_1],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]],BinaryExpression[COMPEQ,IdentifierExpression[sort_label_is_null_3],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]],BinaryExpression[COMPEQ,IdentifierExpression[sort_label_is_null_5],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]]] [L66] sort_label_4 = __VERIFIER_nondet_int() [L67] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[result_6],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[result_7],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[result_8],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[sort_label_is_null_1],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]],BinaryExpression[COMPEQ,IdentifierExpression[sort_label_is_null_3],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]],BinaryExpression[COMPEQ,IdentifierExpression[sort_label_is_null_5],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]]] [L67] sort_label_is_null_1 = __VERIFIER_nondet_bool() [L68] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[result_6],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[result_7],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[result_8],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[sort_label_is_null_3],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]],BinaryExpression[COMPEQ,IdentifierExpression[sort_label_is_null_5],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[sort_label_is_null_1],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[sort_label_is_null_1],CastExpression[ACSLType[_Bool],IntegerLiteral[1]]]]]]] VAL [result_6=0, result_7=0, result_8=0, sort_label_0=0, sort_label_2=0, sort_label_4=0, sort_label_is_null_1=2, sort_label_is_null_3=0, sort_label_is_null_5=0, t1={5:0}, t2={6:0}, t3={3:0}] - UnprovableResult [Line: 44]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 87]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 88]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 50]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 87]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 88]: 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: 87]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 88]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 72]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 81]: 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: 73]: 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: 74]: 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: 72]: 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 7 procedures, 129 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: 4.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 182 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 107 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 541 IncrementalHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 19 mSDtfsCounter, 541 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=188occurred in iteration=4, InterpolantAutomatonStates: 13, 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, 0.7s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 265 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2024-01-30 14:23:16,611 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