./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.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-symm.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ab2e0ac4 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-symm.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/chl-exp-term-symm.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-ab2e0ac-m [2024-01-29 14:17:40,389 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:17:40,449 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:17:40,452 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:17:40,452 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:17:40,473 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:17:40,474 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:17:40,474 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:17:40,474 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:17:40,478 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:17:40,478 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:17:40,478 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:17:40,479 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:17:40,480 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:17:40,480 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:17:40,480 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:17:40,480 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:17:40,481 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:17:40,481 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:17:40,481 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:17:40,481 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:17:40,482 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:17:40,482 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:17:40,482 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:17:40,482 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:17:40,482 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:17:40,483 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:17:40,483 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:17:40,484 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:17:40,484 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:17:40,485 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:17:40,485 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:17:40,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:17:40,485 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:17:40,485 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:17:40,486 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:17:40,486 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:17:40,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:17:40,486 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:17:40,486 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:17:40,486 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:17:40,487 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:17:40,487 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:17:40,487 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:17:40,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:17:40,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:17:40,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:17:40,736 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:17:40,736 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:17:40,737 INFO L431 ainManager$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-symm.wvr.yml/witness.yml [2024-01-29 14:17:40,836 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:17:40,837 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:17:40,838 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2024-01-29 14:17:41,988 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:17:42,156 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:17:42,157 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2024-01-29 14:17:42,163 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c649c0a5/c9966485aa3c494cb4800e4e368f4c0d/FLAG46e72d654 [2024-01-29 14:17:42,178 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c649c0a5/c9966485aa3c494cb4800e4e368f4c0d [2024-01-29 14:17:42,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:17:42,181 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:17:42,183 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:17:42,183 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:17:42,187 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:17:42,187 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:17:40" (1/2) ... [2024-01-29 14:17:42,190 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41695cda and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:42, skipping insertion in model container [2024-01-29 14:17:42,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:17:40" (1/2) ... [2024-01-29 14:17:42,191 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1f87f6d9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:42, skipping insertion in model container [2024-01-29 14:17:42,191 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:17:42" (2/2) ... [2024-01-29 14:17:42,191 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41695cda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:17:42, skipping insertion in model container [2024-01-29 14:17:42,192 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:17:42" (2/2) ... [2024-01-29 14:17:42,193 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:17:42,216 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:17:42,218 INFO L98 nessWitnessExtractor]: Location invariant before [L59-L59] result_5 == 0 [2024-01-29 14:17:42,218 INFO L98 nessWitnessExtractor]: Location invariant before [L59-L59] sort_label_is_null_3 == (_Bool)0 [2024-01-29 14:17:42,218 INFO L98 nessWitnessExtractor]: Location invariant before [L59-L59] result_4 == 0 [2024-01-29 14:17:42,218 INFO L98 nessWitnessExtractor]: Location invariant before [L59-L59] sort_label_is_null_1 == (_Bool)0 [2024-01-29 14:17:42,218 INFO L98 nessWitnessExtractor]: Location invariant before [L59-L59] sort_label_2 == 0 [2024-01-29 14:17:42,219 INFO L98 nessWitnessExtractor]: Location invariant before [L60-L60] sort_label_is_null_1 == (_Bool)0 [2024-01-29 14:17:42,219 INFO L98 nessWitnessExtractor]: Location invariant before [L60-L60] result_4 == 0 [2024-01-29 14:17:42,219 INFO L98 nessWitnessExtractor]: Location invariant before [L60-L60] result_5 == 0 [2024-01-29 14:17:42,219 INFO L98 nessWitnessExtractor]: Location invariant before [L60-L60] sort_label_is_null_3 == (_Bool)0 [2024-01-29 14:17:42,219 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-29 14:17:42,219 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-29 14:17:42,219 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] b <= -1 [2024-01-29 14:17:42,219 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] b != 0 [2024-01-29 14:17:42,220 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] result_5 == 0 [2024-01-29 14:17:42,220 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] result_4 == 0 [2024-01-29 14:17:42,220 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] sort_label_is_null_1 == (_Bool)0 || sort_label_is_null_1 == (_Bool)1 [2024-01-29 14:17:42,220 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] sort_label_is_null_3 == (_Bool)0 [2024-01-29 14:17:42,220 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] val == (_Bool)0 || val == (_Bool)1 [2024-01-29 14:17:42,220 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] sort_label_is_null_1 == (_Bool)0 || sort_label_is_null_1 == (_Bool)1 [2024-01-29 14:17:42,220 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] result_5 == 0 [2024-01-29 14:17:42,220 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] sort_label_is_null_3 == (_Bool)0 || sort_label_is_null_3 == (_Bool)1 [2024-01-29 14:17:42,221 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] result_4 == 0 [2024-01-29 14:17:42,221 INFO L98 nessWitnessExtractor]: Location invariant before [L46-L46] (unsigned long )_argptr == 0UL [2024-01-29 14:17:42,221 INFO L98 nessWitnessExtractor]: Location invariant before [L78-L78] b != 0 [2024-01-29 14:17:42,221 INFO L98 nessWitnessExtractor]: Location invariant before [L78-L78] 1 <= b [2024-01-29 14:17:42,221 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] result_5 == 0 [2024-01-29 14:17:42,222 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] result_4 == 0 [2024-01-29 14:17:42,222 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] sort_label_is_null_3 == (_Bool)0 [2024-01-29 14:17:42,222 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] sort_label_is_null_1 == (_Bool)0 || sort_label_is_null_1 == (_Bool)1 [2024-01-29 14:17:42,222 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] sort_label_is_null_3 == (_Bool)0 [2024-01-29 14:17:42,222 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] result_5 == 0 [2024-01-29 14:17:42,222 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] sort_label_is_null_1 == (_Bool)0 [2024-01-29 14:17:42,222 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] sort_label_0 == 0 [2024-01-29 14:17:42,222 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] result_4 == 0 [2024-01-29 14:17:42,223 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] sort_label_2 == 0 [2024-01-29 14:17:42,223 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] (unsigned long )_argptr == 0UL [2024-01-29 14:17:42,223 INFO L98 nessWitnessExtractor]: Location invariant before [L22-L25] sort_label_is_null_3 == (_Bool)0 [2024-01-29 14:17:42,223 INFO L98 nessWitnessExtractor]: Location invariant before [L22-L25] result_5 == 0 [2024-01-29 14:17:42,224 INFO L98 nessWitnessExtractor]: Location invariant before [L22-L25] sort_label_2 == 0 [2024-01-29 14:17:42,225 INFO L98 nessWitnessExtractor]: Location invariant before [L22-L25] sort_label_is_null_1 == (_Bool)0 [2024-01-29 14:17:42,225 INFO L98 nessWitnessExtractor]: Location invariant before [L22-L25] result_4 == 0 [2024-01-29 14:17:42,243 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:17:42,443 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-symm.wvr.c[2654,2667] [2024-01-29 14:17:42,454 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:17:42,479 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 14:17:42,488 WARN L424 MainDispatcher]: Unable to annotate __assert_fail(const char *__assertion, const char *__file, unsigned int __line, const char *__function) with a witness entry [2024-01-29 14:17:42,490 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 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 Start Parsing Local [2024-01-29 14:17:42,578 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-symm.wvr.c[2654,2667] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 14:17:42,585 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:17:42,595 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:17:42,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:17:42 WrapperNode [2024-01-29 14:17:42,597 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:17:42,598 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:17:42,598 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:17:42,598 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:17:42,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:17:42" (1/1) ... [2024-01-29 14:17:42,618 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:17:42" (1/1) ... [2024-01-29 14:17:42,651 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 168 [2024-01-29 14:17:42,652 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:17:42,653 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:17:42,653 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:17:42,653 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:17:42,661 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:17:42" (1/1) ... [2024-01-29 14:17:42,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:17:42" (1/1) ... [2024-01-29 14:17:42,670 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:17:42" (1/1) ... [2024-01-29 14:17:42,691 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-01-29 14:17:42,691 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:17:42" (1/1) ... [2024-01-29 14:17:42,691 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:17:42" (1/1) ... [2024-01-29 14:17:42,706 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:17:42" (1/1) ... [2024-01-29 14:17:42,709 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:17:42" (1/1) ... [2024-01-29 14:17:42,712 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:17:42" (1/1) ... [2024-01-29 14:17:42,713 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:17:42" (1/1) ... [2024-01-29 14:17:42,715 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:17:42,717 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:17:42,718 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:17:42,718 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:17:42,719 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:17:42" (1/1) ... [2024-01-29 14:17:42,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:17:42,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:17:42,770 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) [2024-01-29 14:17:42,790 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 [2024-01-29 14:17:42,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:17:42,814 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 14:17:42,815 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 14:17:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 14:17:42,815 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 14:17:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:17:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:17:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 14:17:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:17:42,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:17:42,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:17:42,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 14:17:42,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:17:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:17:42,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 14:17:42,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 14:17:42,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 14:17:42,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:17:42,818 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 14:17:42,891 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:17:42,892 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:17:43,123 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:17:43,123 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:17:43,286 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:17:43,287 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-29 14:17:43,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:17:43 BoogieIcfgContainer [2024-01-29 14:17:43,288 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:17:43,290 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:17:43,290 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:17:43,293 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:17:43,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:17:40" (1/4) ... [2024-01-29 14:17:43,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415f4952 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:17:43, skipping insertion in model container [2024-01-29 14:17:43,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:17:42" (2/4) ... [2024-01-29 14:17:43,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415f4952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:17:43, skipping insertion in model container [2024-01-29 14:17:43,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:17:42" (3/4) ... [2024-01-29 14:17:43,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415f4952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:17:43, skipping insertion in model container [2024-01-29 14:17:43,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:17:43" (4/4) ... [2024-01-29 14:17:43,304 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-symm.wvr.c [2024-01-29 14:17:43,337 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:17:43,337 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2024-01-29 14:17:43,337 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:17:43,444 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-29 14:17:43,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 103 transitions, 220 flow [2024-01-29 14:17:43,523 INFO L124 PetriNetUnfolderBase]: 6/101 cut-off events. [2024-01-29 14:17:43,530 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-29 14:17:43,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 101 events. 6/101 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 172 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2024-01-29 14:17:43,534 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 103 transitions, 220 flow [2024-01-29 14:17:43,539 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 100 transitions, 212 flow [2024-01-29 14:17:43,553 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:17:43,560 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;@352eb215, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:17:43,560 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-01-29 14:17:43,564 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:17:43,565 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:17:43,565 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:17:43,565 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:17:43,566 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:17:43,566 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 47 more)] === [2024-01-29 14:17:43,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:17:43,571 INFO L85 PathProgramCache]: Analyzing trace with hash 16012, now seen corresponding path program 1 times [2024-01-29 14:17:43,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:17:43,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122897407] [2024-01-29 14:17:43,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:17:43,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:17:43,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:17:43,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:17:43,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:17:43,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122897407] [2024-01-29 14:17:43,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122897407] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:17:43,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:17:43,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:17:43,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334716222] [2024-01-29 14:17:43,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:17:43,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:17:43,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:17:43,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:17:43,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:17:43,776 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 103 [2024-01-29 14:17:43,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 100 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 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) [2024-01-29 14:17:43,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:17:43,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 103 [2024-01-29 14:17:43,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:17:43,901 INFO L124 PetriNetUnfolderBase]: 239/554 cut-off events. [2024-01-29 14:17:43,901 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-01-29 14:17:43,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 980 conditions, 554 events. 239/554 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 3312 event pairs, 189 based on Foata normal form. 0/428 useless extension candidates. Maximal degree in co-relation 841. Up to 392 conditions per place. [2024-01-29 14:17:43,907 INFO L140 encePairwiseOnDemand]: 99/103 looper letters, 30 selfloop transitions, 2 changer transitions 0/98 dead transitions. [2024-01-29 14:17:43,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 98 transitions, 272 flow [2024-01-29 14:17:43,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:17:43,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:17:43,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 238 transitions. [2024-01-29 14:17:43,918 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7702265372168284 [2024-01-29 14:17:43,919 INFO L175 Difference]: Start difference. First operand has 101 places, 100 transitions, 212 flow. Second operand 3 states and 238 transitions. [2024-01-29 14:17:43,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 98 transitions, 272 flow [2024-01-29 14:17:43,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 98 transitions, 264 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-29 14:17:43,925 INFO L231 Difference]: Finished difference. Result has 97 places, 98 transitions, 204 flow [2024-01-29 14:17:43,926 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=97, PETRI_TRANSITIONS=98} [2024-01-29 14:17:43,929 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -4 predicate places. [2024-01-29 14:17:43,929 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 98 transitions, 204 flow [2024-01-29 14:17:43,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 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) [2024-01-29 14:17:43,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:17:43,930 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-29 14:17:43,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:17:43,930 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 47 more)] === [2024-01-29 14:17:43,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:17:43,931 INFO L85 PathProgramCache]: Analyzing trace with hash 496877, now seen corresponding path program 1 times [2024-01-29 14:17:43,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:17:43,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430115329] [2024-01-29 14:17:43,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:17:43,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:17:43,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:17:43,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:17:43,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:17:43,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430115329] [2024-01-29 14:17:43,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430115329] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:17:43,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:17:43,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:17:43,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67255979] [2024-01-29 14:17:43,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:17:43,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:17:43,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:17:43,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:17:43,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:17:43,966 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 103 [2024-01-29 14:17:43,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 98 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:17:43,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:17:43,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 103 [2024-01-29 14:17:43,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:17:44,084 INFO L124 PetriNetUnfolderBase]: 239/549 cut-off events. [2024-01-29 14:17:44,085 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-29 14:17:44,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 961 conditions, 549 events. 239/549 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 3301 event pairs, 127 based on Foata normal form. 0/433 useless extension candidates. Maximal degree in co-relation 932. Up to 276 conditions per place. [2024-01-29 14:17:44,092 INFO L140 encePairwiseOnDemand]: 96/103 looper letters, 44 selfloop transitions, 2 changer transitions 0/104 dead transitions. [2024-01-29 14:17:44,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 104 transitions, 309 flow [2024-01-29 14:17:44,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:17:44,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:17:44,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 237 transitions. [2024-01-29 14:17:44,096 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7669902912621359 [2024-01-29 14:17:44,098 INFO L175 Difference]: Start difference. First operand has 97 places, 98 transitions, 204 flow. Second operand 3 states and 237 transitions. [2024-01-29 14:17:44,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 104 transitions, 309 flow [2024-01-29 14:17:44,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 104 transitions, 305 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:17:44,100 INFO L231 Difference]: Finished difference. Result has 92 places, 93 transitions, 194 flow [2024-01-29 14:17:44,101 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=92, PETRI_TRANSITIONS=93} [2024-01-29 14:17:44,101 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -9 predicate places. [2024-01-29 14:17:44,102 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 93 transitions, 194 flow [2024-01-29 14:17:44,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:17:44,102 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:17:44,102 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-29 14:17:44,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 14:17:44,102 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 47 more)] === [2024-01-29 14:17:44,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:17:44,103 INFO L85 PathProgramCache]: Analyzing trace with hash 15403663, now seen corresponding path program 1 times [2024-01-29 14:17:44,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:17:44,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495641317] [2024-01-29 14:17:44,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:17:44,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:17:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:17:44,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:17:44,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:17:44,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495641317] [2024-01-29 14:17:44,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495641317] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:17:44,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:17:44,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:17:44,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649641623] [2024-01-29 14:17:44,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:17:44,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:17:44,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:17:44,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:17:44,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:17:44,150 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 103 [2024-01-29 14:17:44,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 93 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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) [2024-01-29 14:17:44,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:17:44,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 103 [2024-01-29 14:17:44,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:17:44,234 INFO L124 PetriNetUnfolderBase]: 239/548 cut-off events. [2024-01-29 14:17:44,234 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-01-29 14:17:44,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 973 conditions, 548 events. 239/548 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 3319 event pairs, 189 based on Foata normal form. 0/428 useless extension candidates. Maximal degree in co-relation 684. Up to 393 conditions per place. [2024-01-29 14:17:44,239 INFO L140 encePairwiseOnDemand]: 100/103 looper letters, 29 selfloop transitions, 2 changer transitions 0/92 dead transitions. [2024-01-29 14:17:44,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 92 transitions, 254 flow [2024-01-29 14:17:44,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:17:44,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:17:44,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 242 transitions. [2024-01-29 14:17:44,244 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7831715210355987 [2024-01-29 14:17:44,244 INFO L175 Difference]: Start difference. First operand has 92 places, 93 transitions, 194 flow. Second operand 3 states and 242 transitions. [2024-01-29 14:17:44,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 92 transitions, 254 flow [2024-01-29 14:17:44,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 92 transitions, 250 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:17:44,248 INFO L231 Difference]: Finished difference. Result has 91 places, 92 transitions, 192 flow [2024-01-29 14:17:44,248 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=192, PETRI_PLACES=91, PETRI_TRANSITIONS=92} [2024-01-29 14:17:44,249 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -10 predicate places. [2024-01-29 14:17:44,249 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 92 transitions, 192 flow [2024-01-29 14:17:44,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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) [2024-01-29 14:17:44,250 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:17:44,250 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 14:17:44,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 14:17:44,250 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 47 more)] === [2024-01-29 14:17:44,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:17:44,251 INFO L85 PathProgramCache]: Analyzing trace with hash 477514035, now seen corresponding path program 1 times [2024-01-29 14:17:44,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:17:44,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16685576] [2024-01-29 14:17:44,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:17:44,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:17:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:17:44,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:17:44,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:17:44,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16685576] [2024-01-29 14:17:44,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16685576] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:17:44,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:17:44,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:17:44,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852996900] [2024-01-29 14:17:44,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:17:44,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:17:44,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:17:44,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:17:44,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:17:44,371 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 103 [2024-01-29 14:17:44,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 92 transitions, 192 flow. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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) [2024-01-29 14:17:44,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:17:44,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 103 [2024-01-29 14:17:44,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:17:44,463 INFO L124 PetriNetUnfolderBase]: 239/545 cut-off events. [2024-01-29 14:17:44,464 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-29 14:17:44,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 954 conditions, 545 events. 239/545 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 3344 event pairs, 189 based on Foata normal form. 2/429 useless extension candidates. Maximal degree in co-relation 938. Up to 393 conditions per place. [2024-01-29 14:17:44,466 INFO L140 encePairwiseOnDemand]: 98/103 looper letters, 30 selfloop transitions, 2 changer transitions 0/89 dead transitions. [2024-01-29 14:17:44,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 89 transitions, 250 flow [2024-01-29 14:17:44,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:17:44,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:17:44,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 236 transitions. [2024-01-29 14:17:44,467 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7637540453074434 [2024-01-29 14:17:44,468 INFO L175 Difference]: Start difference. First operand has 91 places, 92 transitions, 192 flow. Second operand 3 states and 236 transitions. [2024-01-29 14:17:44,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 89 transitions, 250 flow [2024-01-29 14:17:44,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 89 transitions, 246 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:17:44,469 INFO L231 Difference]: Finished difference. Result has 88 places, 89 transitions, 186 flow [2024-01-29 14:17:44,469 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=186, PETRI_PLACES=88, PETRI_TRANSITIONS=89} [2024-01-29 14:17:44,470 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -13 predicate places. [2024-01-29 14:17:44,470 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 89 transitions, 186 flow [2024-01-29 14:17:44,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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) [2024-01-29 14:17:44,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:17:44,471 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 14:17:44,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 14:17:44,471 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 47 more)] === [2024-01-29 14:17:44,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:17:44,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1918033707, now seen corresponding path program 1 times [2024-01-29 14:17:44,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:17:44,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723786770] [2024-01-29 14:17:44,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:17:44,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:17:44,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:17:44,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:17:44,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:17:44,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723786770] [2024-01-29 14:17:44,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723786770] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:17:44,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:17:44,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:17:44,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301451770] [2024-01-29 14:17:44,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:17:44,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:17:44,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:17:44,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:17:44,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:17:44,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 103 [2024-01-29 14:17:44,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 89 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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) [2024-01-29 14:17:44,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:17:44,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 103 [2024-01-29 14:17:44,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:17:44,566 INFO L124 PetriNetUnfolderBase]: 239/542 cut-off events. [2024-01-29 14:17:44,566 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-29 14:17:44,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 952 conditions, 542 events. 239/542 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 3337 event pairs, 141 based on Foata normal form. 0/427 useless extension candidates. Maximal degree in co-relation 922. Up to 306 conditions per place. [2024-01-29 14:17:44,569 INFO L140 encePairwiseOnDemand]: 96/103 looper letters, 42 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2024-01-29 14:17:44,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 95 transitions, 287 flow [2024-01-29 14:17:44,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:17:44,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:17:44,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 241 transitions. [2024-01-29 14:17:44,571 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7799352750809061 [2024-01-29 14:17:44,571 INFO L175 Difference]: Start difference. First operand has 88 places, 89 transitions, 186 flow. Second operand 3 states and 241 transitions. [2024-01-29 14:17:44,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 95 transitions, 287 flow [2024-01-29 14:17:44,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 95 transitions, 283 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:17:44,573 INFO L231 Difference]: Finished difference. Result has 83 places, 84 transitions, 176 flow [2024-01-29 14:17:44,573 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=83, PETRI_TRANSITIONS=84} [2024-01-29 14:17:44,573 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -18 predicate places. [2024-01-29 14:17:44,573 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 84 transitions, 176 flow [2024-01-29 14:17:44,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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) [2024-01-29 14:17:44,574 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:17:44,574 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:17:44,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 14:17:44,574 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 47 more)] === [2024-01-29 14:17:44,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:17:44,575 INFO L85 PathProgramCache]: Analyzing trace with hash -670496724, now seen corresponding path program 1 times [2024-01-29 14:17:44,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:17:44,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942801843] [2024-01-29 14:17:44,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:17:44,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:17:44,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:17:44,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:17:44,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:17:44,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942801843] [2024-01-29 14:17:44,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942801843] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:17:44,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:17:44,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:17:44,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135472270] [2024-01-29 14:17:44,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:17:44,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:17:44,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:17:44,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:17:44,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:17:44,620 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 103 [2024-01-29 14:17:44,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 84 transitions, 176 flow. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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) [2024-01-29 14:17:44,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:17:44,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 103 [2024-01-29 14:17:44,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:17:44,694 INFO L124 PetriNetUnfolderBase]: 239/536 cut-off events. [2024-01-29 14:17:44,695 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-01-29 14:17:44,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 961 conditions, 536 events. 239/536 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 3280 event pairs, 189 based on Foata normal form. 3/428 useless extension candidates. Maximal degree in co-relation 740. Up to 391 conditions per place. [2024-01-29 14:17:44,697 INFO L140 encePairwiseOnDemand]: 97/103 looper letters, 29 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2024-01-29 14:17:44,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 80 transitions, 230 flow [2024-01-29 14:17:44,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:17:44,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:17:44,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 236 transitions. [2024-01-29 14:17:44,698 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7637540453074434 [2024-01-29 14:17:44,699 INFO L175 Difference]: Start difference. First operand has 83 places, 84 transitions, 176 flow. Second operand 3 states and 236 transitions. [2024-01-29 14:17:44,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 80 transitions, 230 flow [2024-01-29 14:17:44,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 80 transitions, 226 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:17:44,700 INFO L231 Difference]: Finished difference. Result has 79 places, 80 transitions, 168 flow [2024-01-29 14:17:44,701 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=77, 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=168, PETRI_PLACES=79, PETRI_TRANSITIONS=80} [2024-01-29 14:17:44,701 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -22 predicate places. [2024-01-29 14:17:44,701 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 80 transitions, 168 flow [2024-01-29 14:17:44,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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) [2024-01-29 14:17:44,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:17:44,702 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:17:44,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 14:17:44,702 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 47 more)] === [2024-01-29 14:17:44,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:17:44,703 INFO L85 PathProgramCache]: Analyzing trace with hash 89864481, now seen corresponding path program 1 times [2024-01-29 14:17:44,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:17:44,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350916374] [2024-01-29 14:17:44,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:17:44,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:17:44,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:17:44,711 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 14:17:44,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:17:44,730 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 14:17:44,730 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 14:17:44,731 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 50 remaining) [2024-01-29 14:17:44,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 50 remaining) [2024-01-29 14:17:44,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 50 remaining) [2024-01-29 14:17:44,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 50 remaining) [2024-01-29 14:17:44,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 50 remaining) [2024-01-29 14:17:44,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 50 remaining) [2024-01-29 14:17:44,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 50 remaining) [2024-01-29 14:17:44,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 50 remaining) [2024-01-29 14:17:44,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 50 remaining) [2024-01-29 14:17:44,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 50 remaining) [2024-01-29 14:17:44,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 50 remaining) [2024-01-29 14:17:44,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 50 remaining) [2024-01-29 14:17:44,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 50 remaining) [2024-01-29 14:17:44,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 50 remaining) [2024-01-29 14:17:44,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 50 remaining) [2024-01-29 14:17:44,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 50 remaining) [2024-01-29 14:17:44,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 50 remaining) [2024-01-29 14:17:44,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 50 remaining) [2024-01-29 14:17:44,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 50 remaining) [2024-01-29 14:17:44,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 50 remaining) [2024-01-29 14:17:44,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 50 remaining) [2024-01-29 14:17:44,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 50 remaining) [2024-01-29 14:17:44,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 50 remaining) [2024-01-29 14:17:44,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 50 remaining) [2024-01-29 14:17:44,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 50 remaining) [2024-01-29 14:17:44,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 50 remaining) [2024-01-29 14:17:44,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 50 remaining) [2024-01-29 14:17:44,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 50 remaining) [2024-01-29 14:17:44,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 50 remaining) [2024-01-29 14:17:44,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 50 remaining) [2024-01-29 14:17:44,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 50 remaining) [2024-01-29 14:17:44,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 50 remaining) [2024-01-29 14:17:44,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 50 remaining) [2024-01-29 14:17:44,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 50 remaining) [2024-01-29 14:17:44,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 50 remaining) [2024-01-29 14:17:44,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION (14 of 50 remaining) [2024-01-29 14:17:44,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 50 remaining) [2024-01-29 14:17:44,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 50 remaining) [2024-01-29 14:17:44,739 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 50 remaining) [2024-01-29 14:17:44,739 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 50 remaining) [2024-01-29 14:17:44,739 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 50 remaining) [2024-01-29 14:17:44,739 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 50 remaining) [2024-01-29 14:17:44,739 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 50 remaining) [2024-01-29 14:17:44,739 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 50 remaining) [2024-01-29 14:17:44,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 50 remaining) [2024-01-29 14:17:44,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 50 remaining) [2024-01-29 14:17:44,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 50 remaining) [2024-01-29 14:17:44,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 50 remaining) [2024-01-29 14:17:44,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 50 remaining) [2024-01-29 14:17:44,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 50 remaining) [2024-01-29 14:17:44,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 14:17:44,741 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:17:44,746 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 14:17:44,746 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 14:17:44,764 INFO L503 ceAbstractionStarter]: Automizer considered 35 witness invariants [2024-01-29 14:17:44,764 INFO L504 ceAbstractionStarter]: WitnessConsidered=35 [2024-01-29 14:17:44,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 02:17:44 BasicIcfg [2024-01-29 14:17:44,765 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 14:17:44,766 INFO L158 Benchmark]: Toolchain (without parser) took 2584.96ms. Allocated memory was 123.7MB in the beginning and 155.2MB in the end (delta: 31.5MB). Free memory was 64.0MB in the beginning and 105.9MB in the end (delta: -41.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:17:44,766 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 123.7MB. Free memory was 84.2MB in the beginning and 84.2MB in the end (delta: 69.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:17:44,766 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 123.7MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:17:44,766 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.88ms. Allocated memory is still 123.7MB. Free memory was 63.8MB in the beginning and 90.7MB in the end (delta: -26.9MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2024-01-29 14:17:44,767 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.13ms. Allocated memory is still 123.7MB. Free memory was 90.3MB in the beginning and 88.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:17:44,767 INFO L158 Benchmark]: Boogie Preprocessor took 64.17ms. Allocated memory is still 123.7MB. Free memory was 88.2MB in the beginning and 86.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:17:44,767 INFO L158 Benchmark]: RCFGBuilder took 570.42ms. Allocated memory is still 123.7MB. Free memory was 86.1MB in the beginning and 44.1MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-01-29 14:17:44,767 INFO L158 Benchmark]: TraceAbstraction took 1475.63ms. Allocated memory was 123.7MB in the beginning and 155.2MB in the end (delta: 31.5MB). Free memory was 43.7MB in the beginning and 105.9MB in the end (delta: -62.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:17:44,768 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 123.7MB. Free memory was 84.2MB in the beginning and 84.2MB in the end (delta: 69.6kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.16ms. Allocated memory is still 123.7MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 413.88ms. Allocated memory is still 123.7MB. Free memory was 63.8MB in the beginning and 90.7MB in the end (delta: -26.9MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.13ms. Allocated memory is still 123.7MB. Free memory was 90.3MB in the beginning and 88.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.17ms. Allocated memory is still 123.7MB. Free memory was 88.2MB in the beginning and 86.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 570.42ms. Allocated memory is still 123.7MB. Free memory was 86.1MB in the beginning and 44.1MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1475.63ms. Allocated memory was 123.7MB in the beginning and 155.2MB in the end (delta: 31.5MB). Free memory was 43.7MB in the beginning and 105.9MB in the end (delta: -62.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 61]: 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, result_4, result_5; [L39] _Bool sort_label_is_null_1, sort_label_is_null_3; [L56] pthread_t t1, t2; VAL [result_4=0, result_5=0, sort_label_0=0, sort_label_2=0, sort_label_is_null_1=0, sort_label_is_null_3=0, t1={3:0}, t2={5:0}] [L58] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[sort_label_2],IntegerLiteral[0]]]] VAL [result_4=0, result_5=0, sort_label_0=0, sort_label_2=0, sort_label_is_null_1=0, sort_label_is_null_3=0, t1={3:0}, t2={5:0}] [L58] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[result_4],IntegerLiteral[0]]]] VAL [result_4=0, result_5=0, sort_label_0=0, sort_label_2=0, sort_label_is_null_1=0, sort_label_is_null_3=0, t1={3:0}, t2={5:0}] [L58] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[sort_label_0],IntegerLiteral[0]]]] VAL [result_4=0, result_5=0, sort_label_0=0, sort_label_2=0, sort_label_is_null_1=0, sort_label_is_null_3=0, t1={3:0}, t2={5:0}] [L58] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[sort_label_is_null_1],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]] VAL [result_4=0, result_5=0, sort_label_0=0, sort_label_2=0, sort_label_is_null_1=0, sort_label_is_null_3=0, t1={3:0}, t2={5:0}] [L58] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[result_5],IntegerLiteral[0]]]] VAL [result_4=0, result_5=0, sort_label_0=0, sort_label_2=0, sort_label_is_null_1=0, sort_label_is_null_3=0, t1={3:0}, t2={5:0}] [L58] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[sort_label_is_null_3],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]] [L58] sort_label_0 = __VERIFIER_nondet_int() [L59] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[sort_label_2],IntegerLiteral[0]]]] VAL [result_4=0, result_5=0, sort_label_0=0, sort_label_2=0, sort_label_is_null_1=0, sort_label_is_null_3=0, t1={3:0}, t2={5:0}] [L59] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[sort_label_is_null_1],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]] VAL [result_4=0, result_5=0, sort_label_0=0, sort_label_2=0, sort_label_is_null_1=0, sort_label_is_null_3=0, t1={3:0}, t2={5:0}] [L59] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[result_4],IntegerLiteral[0]]]] VAL [result_4=0, result_5=0, sort_label_0=0, sort_label_2=0, sort_label_is_null_1=0, sort_label_is_null_3=0, t1={3:0}, t2={5:0}] [L59] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[sort_label_is_null_3],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]] VAL [result_4=0, result_5=0, sort_label_0=0, sort_label_2=0, sort_label_is_null_1=0, sort_label_is_null_3=0, t1={3:0}, t2={5:0}] [L59] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[result_5],IntegerLiteral[0]]]] [L59] sort_label_2 = __VERIFIER_nondet_int() [L60] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[sort_label_is_null_3],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]] VAL [result_4=0, result_5=0, sort_label_0=0, sort_label_2=0, sort_label_is_null_1=0, sort_label_is_null_3=0, t1={3:0}, t2={5:0}] [L60] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[result_5],IntegerLiteral[0]]]] VAL [result_4=0, result_5=0, sort_label_0=0, sort_label_2=0, sort_label_is_null_1=0, sort_label_is_null_3=0, t1={3:0}, t2={5:0}] [L60] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[result_4],IntegerLiteral[0]]]] VAL [result_4=0, result_5=0, sort_label_0=0, sort_label_2=0, sort_label_is_null_1=0, sort_label_is_null_3=0, t1={3:0}, t2={5:0}] [L60] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[sort_label_is_null_1],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]] [L60] sort_label_is_null_1 = __VERIFIER_nondet_bool() [L61] CodeAnnotStmt[Assertion[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_4=0, result_5=0, sort_label_0=0, sort_label_2=0, sort_label_is_null_1=2, sort_label_is_null_3=0, t1={3:0}, t2={5:0}] - 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: 78]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 78]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 79]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 79]: 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: 78]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 78]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 79]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 79]: 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: 58]: 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: 58]: 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: 58]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 61]: 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: 64]: 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: 64]: 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 a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 65]: 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: 64]: 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 5 procedures, 140 locations, 50 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: 1.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 169 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 96 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 376 IncrementalHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 12 mSDtfsCounter, 376 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=212occurred in iteration=0, InterpolantAutomatonStates: 18, 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, 0.2s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 63 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [2024-01-29 14:17:44,801 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