./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 59af5db6 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-59af5db-m [2024-02-02 09:19:15,296 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 09:19:15,358 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 09:19:15,363 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 09:19:15,363 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 09:19:15,381 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 09:19:15,381 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 09:19:15,382 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 09:19:15,382 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 09:19:15,383 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 09:19:15,383 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 09:19:15,383 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 09:19:15,384 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 09:19:15,386 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 09:19:15,386 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 09:19:15,386 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 09:19:15,387 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 09:19:15,390 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 09:19:15,391 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 09:19:15,391 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 09:19:15,391 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 09:19:15,392 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 09:19:15,392 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 09:19:15,392 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 09:19:15,392 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 09:19:15,392 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 09:19:15,393 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 09:19:15,393 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 09:19:15,393 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 09:19:15,393 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 09:19:15,394 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 09:19:15,394 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 09:19:15,395 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:19:15,395 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 09:19:15,395 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 09:19:15,395 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 09:19:15,395 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 09:19:15,395 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 09:19:15,396 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 09:19:15,396 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 09:19:15,396 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 09:19:15,396 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 09:19:15,396 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 09:19:15,397 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 09:19:15,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 09:19:15,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 09:19:15,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 09:19:15,639 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 09:19:15,640 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 09:19:15,641 INFO L431 ainManager$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 [2024-02-02 09:19:15,748 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 09:19:15,748 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 09:19:15,750 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-exp-term-subst.wvr.c [2024-02-02 09:19:16,792 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 09:19:16,952 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 09:19:16,952 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-subst.wvr.c [2024-02-02 09:19:16,958 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4946728dd/73d4258f7df442c1b0a727cda3bfde7e/FLAG06b6c39d4 [2024-02-02 09:19:16,968 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4946728dd/73d4258f7df442c1b0a727cda3bfde7e [2024-02-02 09:19:16,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 09:19:16,969 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 09:19:16,970 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 09:19:16,970 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 09:19:16,974 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 09:19:16,975 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:19:15" (1/2) ... [2024-02-02 09:19:16,975 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d2da8f1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:19:16, skipping insertion in model container [2024-02-02 09:19:16,975 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:19:15" (1/2) ... [2024-02-02 09:19:16,976 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1f04f15d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:19:16, skipping insertion in model container [2024-02-02 09:19:16,977 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:19:16" (2/2) ... [2024-02-02 09:19:16,977 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d2da8f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:19:16, skipping insertion in model container [2024-02-02 09:19:16,977 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:19:16" (2/2) ... [2024-02-02 09:19:16,977 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 09:19:16,998 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 09:19:16,999 INFO L101 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) [2024-02-02 09:19:16,999 INFO L101 nessWitnessExtractor]: Location invariant before [L87-L87] (1 <= b) && (b != 0) [2024-02-02 09:19:17,000 INFO L101 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) [2024-02-02 09:19:17,000 INFO L101 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) [2024-02-02 09:19:17,000 INFO L101 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) [2024-02-02 09:19:17,000 INFO L101 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-02-02 09:19:17,000 INFO L101 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-02-02 09:19:17,000 INFO L101 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) [2024-02-02 09:19:17,001 INFO L101 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) [2024-02-02 09:19:17,001 INFO L101 nessWitnessExtractor]: Location invariant before [L46-L46] (unsigned long )_argptr == 0UL [2024-02-02 09:19:17,001 INFO L101 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) [2024-02-02 09:19:17,001 INFO L101 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-02-02 09:19:17,001 INFO L101 nessWitnessExtractor]: Location invariant before [L52-L52] (unsigned long )_argptr == 0UL [2024-02-02 09:19:17,001 INFO L101 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) [2024-02-02 09:19:17,001 INFO L101 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-02-02 09:19:17,002 INFO L101 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) [2024-02-02 09:19:17,002 INFO L101 nessWitnessExtractor]: Location invariant before [L88-L88] (b <= -1) && (b != 0) [2024-02-02 09:19:17,040 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-02 09:19:17,221 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] [2024-02-02 09:19:17,232 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:19:17,241 INFO L202 MainTranslator]: Completed pre-run [2024-02-02 09:19:17,251 WARN L424 MainDispatcher]: Unable to annotate __assert_fail(const char *__assertion, const char *__file, unsigned int __line, const char *__function) with a witness entry [2024-02-02 09:19:17,256 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 [2024-02-02 09:19:17,327 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 [2024-02-02 09:19:17,333 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:19:17,345 INFO L206 MainTranslator]: Completed translation [2024-02-02 09:19:17,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:19:17 WrapperNode [2024-02-02 09:19:17,350 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 09:19:17,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 09:19:17,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 09:19:17,352 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 09:19:17,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:19:17" (1/1) ... [2024-02-02 09:19:17,375 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:19:17" (1/1) ... [2024-02-02 09:19:17,410 INFO L138 Inliner]: procedures = 23, calls = 31, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 203 [2024-02-02 09:19:17,412 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 09:19:17,413 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 09:19:17,413 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 09:19:17,414 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 09:19:17,423 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:19:17" (1/1) ... [2024-02-02 09:19:17,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:19:17" (1/1) ... [2024-02-02 09:19:17,436 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:19:17" (1/1) ... [2024-02-02 09:19:17,456 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]. [2024-02-02 09:19:17,458 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:19:17" (1/1) ... [2024-02-02 09:19:17,458 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:19:17" (1/1) ... [2024-02-02 09:19:17,477 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:19:17" (1/1) ... [2024-02-02 09:19:17,480 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:19:17" (1/1) ... [2024-02-02 09:19:17,491 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:19:17" (1/1) ... [2024-02-02 09:19:17,492 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:19:17" (1/1) ... [2024-02-02 09:19:17,494 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 09:19:17,495 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 09:19:17,495 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 09:19:17,495 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 09:19:17,496 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:19:17" (1/1) ... [2024-02-02 09:19:17,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:19:17,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 09:19:17,558 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) [2024-02-02 09:19:17,568 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 [2024-02-02 09:19:17,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 09:19:17,588 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-02 09:19:17,592 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-02 09:19:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-02 09:19:17,592 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-02 09:19:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-02-02 09:19:17,592 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-02-02 09:19:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 09:19:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 09:19:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 09:19:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-02 09:19:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 09:19:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 09:19:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 09:19:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 09:19:17,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-02 09:19:17,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 09:19:17,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 09:19:17,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-02 09:19:17,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-02 09:19:17,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-02 09:19:17,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-02 09:19:17,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 09:19:17,596 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-02 09:19:17,695 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 09:19:17,697 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 09:19:18,000 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 09:19:18,001 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 09:19:18,139 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 09:19:18,139 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-02 09:19:18,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:19:18 BoogieIcfgContainer [2024-02-02 09:19:18,140 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 09:19:18,142 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 09:19:18,142 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 09:19:18,144 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 09:19:18,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:19:15" (1/4) ... [2024-02-02 09:19:18,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2333cb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:19:18, skipping insertion in model container [2024-02-02 09:19:18,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:19:16" (2/4) ... [2024-02-02 09:19:18,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2333cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:19:18, skipping insertion in model container [2024-02-02 09:19:18,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:19:17" (3/4) ... [2024-02-02 09:19:18,146 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2333cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:19:18, skipping insertion in model container [2024-02-02 09:19:18,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:19:18" (4/4) ... [2024-02-02 09:19:18,147 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-subst.wvr.c [2024-02-02 09:19:18,160 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 09:19:18,160 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-02-02 09:19:18,160 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 09:19:18,224 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-02-02 09:19:18,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 86 transitions, 193 flow [2024-02-02 09:19:18,289 INFO L124 PetriNetUnfolderBase]: 9/83 cut-off events. [2024-02-02 09:19:18,289 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-02-02 09:19:18,293 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. [2024-02-02 09:19:18,293 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 86 transitions, 193 flow [2024-02-02 09:19:18,299 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 82 transitions, 182 flow [2024-02-02 09:19:18,306 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:19:18,311 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;@bc1428a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:19:18,311 INFO L358 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-02-02 09:19:18,313 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:19:18,313 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-02 09:19:18,314 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:19:18,314 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:19:18,314 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-02 09:19:18,315 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 32 more)] === [2024-02-02 09:19:18,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:19:18,319 INFO L85 PathProgramCache]: Analyzing trace with hash 18866, now seen corresponding path program 1 times [2024-02-02 09:19:18,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:19:18,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235543553] [2024-02-02 09:19:18,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:19:18,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:19:18,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:19:18,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:19:18,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:19:18,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235543553] [2024-02-02 09:19:18,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235543553] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:19:18,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:19:18,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:19:18,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323346918] [2024-02-02 09:19:18,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:19:18,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:19:18,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:19:18,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:19:18,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:19:18,783 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 86 [2024-02-02 09:19:18,785 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) [2024-02-02 09:19:18,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:19:18,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 86 [2024-02-02 09:19:18,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:19:19,505 INFO L124 PetriNetUnfolderBase]: 4656/7297 cut-off events. [2024-02-02 09:19:19,506 INFO L125 PetriNetUnfolderBase]: For 263/263 co-relation queries the response was YES. [2024-02-02 09:19:19,525 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. [2024-02-02 09:19:19,565 INFO L140 encePairwiseOnDemand]: 83/86 looper letters, 51 selfloop transitions, 2 changer transitions 0/81 dead transitions. [2024-02-02 09:19:19,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 81 transitions, 286 flow [2024-02-02 09:19:19,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:19:19,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:19:19,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 147 transitions. [2024-02-02 09:19:19,579 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5697674418604651 [2024-02-02 09:19:19,580 INFO L175 Difference]: Start difference. First operand has 83 places, 82 transitions, 182 flow. Second operand 3 states and 147 transitions. [2024-02-02 09:19:19,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 81 transitions, 286 flow [2024-02-02 09:19:19,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 81 transitions, 274 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-02-02 09:19:19,596 INFO L231 Difference]: Finished difference. Result has 78 places, 81 transitions, 172 flow [2024-02-02 09:19:19,597 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} [2024-02-02 09:19:19,601 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, -5 predicate places. [2024-02-02 09:19:19,601 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 81 transitions, 172 flow [2024-02-02 09:19:19,601 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) [2024-02-02 09:19:19,602 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:19:19,602 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-02-02 09:19:19,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 09:19:19,602 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 32 more)] === [2024-02-02 09:19:19,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:19:19,604 INFO L85 PathProgramCache]: Analyzing trace with hash 585491, now seen corresponding path program 1 times [2024-02-02 09:19:19,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:19:19,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844091967] [2024-02-02 09:19:19,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:19:19,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:19:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:19:19,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:19:19,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:19:19,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844091967] [2024-02-02 09:19:19,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844091967] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:19:19,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:19:19,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:19:19,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497717583] [2024-02-02 09:19:19,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:19:19,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:19:19,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:19:19,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:19:19,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:19:19,803 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 86 [2024-02-02 09:19:19,803 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) [2024-02-02 09:19:19,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:19:19,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 86 [2024-02-02 09:19:19,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:19:20,323 INFO L124 PetriNetUnfolderBase]: 3624/5806 cut-off events. [2024-02-02 09:19:20,323 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-02-02 09:19:20,332 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. [2024-02-02 09:19:20,358 INFO L140 encePairwiseOnDemand]: 83/86 looper letters, 48 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2024-02-02 09:19:20,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 80 transitions, 270 flow [2024-02-02 09:19:20,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:19:20,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:19:20,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 153 transitions. [2024-02-02 09:19:20,360 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5930232558139535 [2024-02-02 09:19:20,361 INFO L175 Difference]: Start difference. First operand has 78 places, 81 transitions, 172 flow. Second operand 3 states and 153 transitions. [2024-02-02 09:19:20,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 80 transitions, 270 flow [2024-02-02 09:19:20,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 80 transitions, 266 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:19:20,362 INFO L231 Difference]: Finished difference. Result has 77 places, 80 transitions, 170 flow [2024-02-02 09:19:20,363 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} [2024-02-02 09:19:20,363 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, -6 predicate places. [2024-02-02 09:19:20,363 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 80 transitions, 170 flow [2024-02-02 09:19:20,364 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) [2024-02-02 09:19:20,364 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:19:20,364 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-02 09:19:20,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-02 09:19:20,364 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 32 more)] === [2024-02-02 09:19:20,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:19:20,365 INFO L85 PathProgramCache]: Analyzing trace with hash 18150822, now seen corresponding path program 1 times [2024-02-02 09:19:20,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:19:20,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287054314] [2024-02-02 09:19:20,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:19:20,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:19:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:19:20,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:19:20,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:19:20,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287054314] [2024-02-02 09:19:20,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287054314] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:19:20,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:19:20,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:19:20,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315994379] [2024-02-02 09:19:20,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:19:20,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:19:20,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:19:20,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:19:20,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:19:20,473 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 86 [2024-02-02 09:19:20,474 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) [2024-02-02 09:19:20,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:19:20,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 86 [2024-02-02 09:19:20,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:19:20,872 INFO L124 PetriNetUnfolderBase]: 3167/5227 cut-off events. [2024-02-02 09:19:20,873 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-02-02 09:19:20,881 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. [2024-02-02 09:19:20,905 INFO L140 encePairwiseOnDemand]: 83/86 looper letters, 46 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2024-02-02 09:19:20,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 79 transitions, 264 flow [2024-02-02 09:19:20,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:19:20,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:19:20,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 157 transitions. [2024-02-02 09:19:20,909 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6085271317829457 [2024-02-02 09:19:20,910 INFO L175 Difference]: Start difference. First operand has 77 places, 80 transitions, 170 flow. Second operand 3 states and 157 transitions. [2024-02-02 09:19:20,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 79 transitions, 264 flow [2024-02-02 09:19:20,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 79 transitions, 260 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:19:20,912 INFO L231 Difference]: Finished difference. Result has 76 places, 79 transitions, 168 flow [2024-02-02 09:19:20,912 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} [2024-02-02 09:19:20,913 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, -7 predicate places. [2024-02-02 09:19:20,913 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 79 transitions, 168 flow [2024-02-02 09:19:20,914 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) [2024-02-02 09:19:20,914 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:19:20,914 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-02 09:19:20,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-02 09:19:20,914 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 32 more)] === [2024-02-02 09:19:20,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:19:20,915 INFO L85 PathProgramCache]: Analyzing trace with hash 562676101, now seen corresponding path program 1 times [2024-02-02 09:19:20,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:19:20,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106177] [2024-02-02 09:19:20,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:19:20,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:19:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:19:20,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:19:20,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:19:20,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106177] [2024-02-02 09:19:20,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106177] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:19:20,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:19:20,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:19:20,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970273231] [2024-02-02 09:19:20,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:19:20,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:19:20,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:19:20,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:19:20,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:19:21,020 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 86 [2024-02-02 09:19:21,021 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) [2024-02-02 09:19:21,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:19:21,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 86 [2024-02-02 09:19:21,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:19:21,452 INFO L124 PetriNetUnfolderBase]: 3167/5227 cut-off events. [2024-02-02 09:19:21,453 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-02-02 09:19:21,462 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. [2024-02-02 09:19:21,483 INFO L140 encePairwiseOnDemand]: 80/86 looper letters, 68 selfloop transitions, 5 changer transitions 0/104 dead transitions. [2024-02-02 09:19:21,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 104 transitions, 366 flow [2024-02-02 09:19:21,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:19:21,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:19:21,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 222 transitions. [2024-02-02 09:19:21,485 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6453488372093024 [2024-02-02 09:19:21,485 INFO L175 Difference]: Start difference. First operand has 76 places, 79 transitions, 168 flow. Second operand 4 states and 222 transitions. [2024-02-02 09:19:21,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 104 transitions, 366 flow [2024-02-02 09:19:21,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 104 transitions, 362 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:19:21,487 INFO L231 Difference]: Finished difference. Result has 77 places, 81 transitions, 188 flow [2024-02-02 09:19:21,487 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} [2024-02-02 09:19:21,488 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, -6 predicate places. [2024-02-02 09:19:21,488 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 81 transitions, 188 flow [2024-02-02 09:19:21,489 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) [2024-02-02 09:19:21,489 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:19:21,489 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-02 09:19:21,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-02 09:19:21,489 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 32 more)] === [2024-02-02 09:19:21,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:19:21,490 INFO L85 PathProgramCache]: Analyzing trace with hash 263090579, now seen corresponding path program 1 times [2024-02-02 09:19:21,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:19:21,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623097] [2024-02-02 09:19:21,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:19:21,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:19:21,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-02 09:19:21,502 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-02 09:19:21,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-02 09:19:21,522 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-02 09:19:21,522 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-02 09:19:21,523 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 35 remaining) [2024-02-02 09:19:21,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 35 remaining) [2024-02-02 09:19:21,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 35 remaining) [2024-02-02 09:19:21,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 35 remaining) [2024-02-02 09:19:21,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 35 remaining) [2024-02-02 09:19:21,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 35 remaining) [2024-02-02 09:19:21,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 35 remaining) [2024-02-02 09:19:21,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 35 remaining) [2024-02-02 09:19:21,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 35 remaining) [2024-02-02 09:19:21,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 35 remaining) [2024-02-02 09:19:21,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 35 remaining) [2024-02-02 09:19:21,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 35 remaining) [2024-02-02 09:19:21,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 35 remaining) [2024-02-02 09:19:21,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 35 remaining) [2024-02-02 09:19:21,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 35 remaining) [2024-02-02 09:19:21,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 35 remaining) [2024-02-02 09:19:21,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 35 remaining) [2024-02-02 09:19:21,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 35 remaining) [2024-02-02 09:19:21,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 35 remaining) [2024-02-02 09:19:21,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (15 of 35 remaining) [2024-02-02 09:19:21,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 35 remaining) [2024-02-02 09:19:21,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 35 remaining) [2024-02-02 09:19:21,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 35 remaining) [2024-02-02 09:19:21,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 35 remaining) [2024-02-02 09:19:21,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 35 remaining) [2024-02-02 09:19:21,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 35 remaining) [2024-02-02 09:19:21,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 35 remaining) [2024-02-02 09:19:21,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 35 remaining) [2024-02-02 09:19:21,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 35 remaining) [2024-02-02 09:19:21,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 35 remaining) [2024-02-02 09:19:21,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 35 remaining) [2024-02-02 09:19:21,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 35 remaining) [2024-02-02 09:19:21,530 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 35 remaining) [2024-02-02 09:19:21,530 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 35 remaining) [2024-02-02 09:19:21,530 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 35 remaining) [2024-02-02 09:19:21,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-02 09:19:21,530 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-02-02 09:19:21,535 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-02 09:19:21,535 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-02 09:19:21,551 INFO L503 ceAbstractionStarter]: Automizer considered 19 witness invariants [2024-02-02 09:19:21,551 INFO L504 ceAbstractionStarter]: WitnessConsidered=19 [2024-02-02 09:19:21,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 09:19:21 BasicIcfg [2024-02-02 09:19:21,551 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-02 09:19:21,552 INFO L158 Benchmark]: Toolchain (without parser) took 4582.66ms. Allocated memory was 113.2MB in the beginning and 654.3MB in the end (delta: 541.1MB). Free memory was 54.8MB in the beginning and 314.8MB in the end (delta: -260.0MB). Peak memory consumption was 282.7MB. Max. memory is 16.1GB. [2024-02-02 09:19:21,552 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 113.2MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:19:21,552 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory is still 69.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:19:21,552 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.13ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 54.6MB in the beginning and 97.7MB in the end (delta: -43.1MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2024-02-02 09:19:21,553 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.09ms. Allocated memory is still 136.3MB. Free memory was 97.7MB in the beginning and 95.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-02 09:19:21,553 INFO L158 Benchmark]: Boogie Preprocessor took 81.95ms. Allocated memory is still 136.3MB. Free memory was 95.0MB in the beginning and 92.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-02-02 09:19:21,553 INFO L158 Benchmark]: RCFGBuilder took 644.82ms. Allocated memory is still 136.3MB. Free memory was 92.0MB in the beginning and 80.3MB in the end (delta: 11.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-02-02 09:19:21,553 INFO L158 Benchmark]: TraceAbstraction took 3409.71ms. Allocated memory was 136.3MB in the beginning and 654.3MB in the end (delta: 518.0MB). Free memory was 79.4MB in the beginning and 314.8MB in the end (delta: -235.3MB). Peak memory consumption was 281.5MB. Max. memory is 16.1GB. [2024-02-02 09:19:21,555 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 0.15ms. Allocated memory is still 113.2MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory is still 69.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.13ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 54.6MB in the beginning and 97.7MB in the end (delta: -43.1MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.09ms. Allocated memory is still 136.3MB. Free memory was 97.7MB in the beginning and 95.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.95ms. Allocated memory is still 136.3MB. Free memory was 95.0MB in the beginning and 92.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 644.82ms. Allocated memory is still 136.3MB. Free memory was 92.0MB in the beginning and 80.3MB in the end (delta: 11.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3409.71ms. Allocated memory was 136.3MB in the beginning and 654.3MB in the end (delta: 518.0MB). Free memory was 79.4MB in the beginning and 314.8MB in the end (delta: -235.3MB). Peak memory consumption was 281.5MB. 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: 3.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, 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, 0.3s 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, 0.5s 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! [2024-02-02 09:19:21,575 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