./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/test-hard1.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/test-hard1.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 59af5db6 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/test-hard1.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/test-hard1.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-59af5db-m [2024-02-02 09:22:10,151 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 09:22:10,187 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 09:22:10,191 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 09:22:10,191 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 09:22:10,205 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 09:22:10,205 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 09:22:10,206 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 09:22:10,206 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 09:22:10,206 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 09:22:10,207 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 09:22:10,207 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 09:22:10,207 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 09:22:10,207 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 09:22:10,208 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 09:22:10,208 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 09:22:10,208 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 09:22:10,208 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 09:22:10,209 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 09:22:10,209 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 09:22:10,209 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 09:22:10,209 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 09:22:10,210 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 09:22:10,210 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 09:22:10,210 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 09:22:10,210 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 09:22:10,210 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 09:22:10,211 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 09:22:10,211 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 09:22:10,211 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 09:22:10,211 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 09:22:10,211 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 09:22:10,212 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:22:10,212 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 09:22:10,212 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 09:22:10,212 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 09:22:10,212 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 09:22:10,213 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 09:22:10,213 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 09:22:10,213 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 09:22:10,213 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 09:22:10,213 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 09:22:10,213 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 09:22:10,214 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 09:22:10,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 09:22:10,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 09:22:10,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 09:22:10,483 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 09:22:10,483 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 09:22:10,484 INFO L431 ainManager$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/test-hard1.wvr.yml/witness.yml [2024-02-02 09:22:10,646 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 09:22:10,647 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 09:22:10,648 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-hard1.wvr.c [2024-02-02 09:22:11,735 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 09:22:11,921 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 09:22:11,922 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c [2024-02-02 09:22:11,928 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90f33ee3e/532061a7c91b485a92c488608ae761d7/FLAGa95a9014c [2024-02-02 09:22:11,942 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90f33ee3e/532061a7c91b485a92c488608ae761d7 [2024-02-02 09:22:11,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 09:22:11,945 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 09:22:11,947 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 09:22:11,947 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 09:22:11,951 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 09:22:11,951 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:22:10" (1/2) ... [2024-02-02 09:22:11,952 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b6576d9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:22:11, skipping insertion in model container [2024-02-02 09:22:11,953 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:22:10" (1/2) ... [2024-02-02 09:22:11,954 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@38681224 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:22:11, skipping insertion in model container [2024-02-02 09:22:11,954 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:22:11" (2/2) ... [2024-02-02 09:22:11,954 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b6576d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:11, skipping insertion in model container [2024-02-02 09:22:11,955 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:22:11" (2/2) ... [2024-02-02 09:22:11,955 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 09:22:12,006 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 09:22:12,007 INFO L101 nessWitnessExtractor]: Location invariant before [L91-L91] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,008 INFO L101 nessWitnessExtractor]: Location invariant before [L112-L112] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,008 INFO L101 nessWitnessExtractor]: Location invariant before [L109-L109] (n2 <= 2147483645) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:22:12,008 INFO L101 nessWitnessExtractor]: Loop invariant at [L65-L75] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,008 INFO L101 nessWitnessExtractor]: Location invariant before [L122-L122] (((p2 == 0U) && (m == 0U)) && (n1 == 0)) && (n2 == 0) [2024-02-02 09:22:12,008 INFO L101 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,008 INFO L101 nessWitnessExtractor]: Loop invariant at [L103-L113] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,008 INFO L101 nessWitnessExtractor]: Location invariant before [L101-L101] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,009 INFO L101 nessWitnessExtractor]: Location invariant before [L86-L89] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,009 INFO L101 nessWitnessExtractor]: Location invariant before [L71-L71] (n1 <= 2147483645) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:22:12,009 INFO L101 nessWitnessExtractor]: Location invariant before [L63-L63] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,009 INFO L101 nessWitnessExtractor]: Location invariant before [L81-L81] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,009 INFO L101 nessWitnessExtractor]: Location invariant before [L48-L51] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,009 INFO L101 nessWitnessExtractor]: Location invariant before [L102-L102] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,009 INFO L101 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,009 INFO L101 nessWitnessExtractor]: Location invariant before [L50-L50] ((1 <= n1) && ((unsigned long )_argptr == 0UL)) && (n1 != 0) [2024-02-02 09:22:12,010 INFO L101 nessWitnessExtractor]: Location invariant before [L22-L25] (m == 0U) && (n2 == 0) [2024-02-02 09:22:12,010 INFO L101 nessWitnessExtractor]: Location invariant before [L106-L106] ((2 <= n2) && ((unsigned long )_argptr == 0UL)) && (n2 != 0) [2024-02-02 09:22:12,010 INFO L101 nessWitnessExtractor]: Location invariant before [L121-L121] ((((p1 == 0U) && (p2 == 0U)) && (m == 0U)) && (n1 == 0)) && (n2 == 0) [2024-02-02 09:22:12,010 INFO L101 nessWitnessExtractor]: Location invariant before [L88-L88] ((1 <= n2) && ((unsigned long )_argptr == 0UL)) && (n2 != 0) [2024-02-02 09:22:12,010 INFO L101 nessWitnessExtractor]: Location invariant before [L64-L64] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,011 INFO L101 nessWitnessExtractor]: Location invariant before [L105-L108] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,011 INFO L101 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,011 INFO L101 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,011 INFO L101 nessWitnessExtractor]: Location invariant before [L85-L85] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,011 INFO L101 nessWitnessExtractor]: Location invariant before [L123-L123] ((m == 0U) && (n1 == 0)) && (n2 == 0) [2024-02-02 09:22:12,011 INFO L101 nessWitnessExtractor]: Location invariant before [L90-L90] (n2 <= 2147483646) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:22:12,011 INFO L101 nessWitnessExtractor]: Location invariant before [L96-L96] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,012 INFO L101 nessWitnessExtractor]: Location invariant before [L110-L110] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,012 INFO L101 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,012 INFO L101 nessWitnessExtractor]: Location invariant before [L93-L93] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,012 INFO L101 nessWitnessExtractor]: Location invariant before [L124-L124] (m == 0U) && (n2 == 0) [2024-02-02 09:22:12,012 INFO L101 nessWitnessExtractor]: Location invariant before [L83-L83] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,012 INFO L101 nessWitnessExtractor]: Location invariant before [L73-L73] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,012 INFO L101 nessWitnessExtractor]: Location invariant before [L125-L125] m == 0U [2024-02-02 09:22:12,013 INFO L101 nessWitnessExtractor]: Location invariant before [L104-L104] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,013 INFO L101 nessWitnessExtractor]: Location invariant before [L67-L70] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,013 INFO L101 nessWitnessExtractor]: Location invariant before [L43-L43] (m == 0U) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:22:12,014 INFO L101 nessWitnessExtractor]: Location invariant before [L87-L87] ((1 <= n2) && ((unsigned long )_argptr == 0UL)) && (n2 != 0) [2024-02-02 09:22:12,014 INFO L101 nessWitnessExtractor]: Location invariant before [L115-L115] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,014 INFO L101 nessWitnessExtractor]: Location invariant before [L77-L77] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,014 INFO L101 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,015 INFO L101 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,015 INFO L101 nessWitnessExtractor]: Loop invariant at [L46-L56] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,015 INFO L101 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,015 INFO L101 nessWitnessExtractor]: Location invariant before [L92-L92] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,021 INFO L101 nessWitnessExtractor]: Location invariant before [L111-L111] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,021 INFO L101 nessWitnessExtractor]: Location invariant before [L74-L74] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,021 INFO L101 nessWitnessExtractor]: Location invariant before [L69-L69] ((2 <= n1) && ((unsigned long )_argptr == 0UL)) && (n1 != 0) [2024-02-02 09:22:12,021 INFO L101 nessWitnessExtractor]: Location invariant before [L72-L72] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,021 INFO L101 nessWitnessExtractor]: Location invariant before [L49-L49] ((1 <= n1) && ((unsigned long )_argptr == 0UL)) && (n1 != 0) [2024-02-02 09:22:12,022 INFO L101 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,022 INFO L101 nessWitnessExtractor]: Loop invariant at [L84-L94] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,022 INFO L101 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,022 INFO L101 nessWitnessExtractor]: Location invariant before [L100-L100] (unsigned long )_argptr == 0UL [2024-02-02 09:22:12,023 INFO L101 nessWitnessExtractor]: Location invariant before [L52-L52] (n1 <= 2147483646) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:22:12,023 INFO L101 nessWitnessExtractor]: Location invariant before [L107-L107] ((2 <= n2) && ((unsigned long )_argptr == 0UL)) && (n2 != 0) [2024-02-02 09:22:12,024 INFO L101 nessWitnessExtractor]: Location invariant before [L68-L68] ((2 <= n1) && ((unsigned long )_argptr == 0UL)) && (n1 != 0) [2024-02-02 09:22:12,045 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-02 09:22:12,207 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/test-hard1.wvr.c[3425,3438] [2024-02-02 09:22:12,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:22:12,217 INFO L202 MainTranslator]: Completed pre-run [2024-02-02 09:22:12,227 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 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 Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-02 09:22:12,303 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/test-hard1.wvr.c[3425,3438] [2024-02-02 09:22:12,304 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:22:12,315 INFO L206 MainTranslator]: Completed translation [2024-02-02 09:22:12,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:12 WrapperNode [2024-02-02 09:22:12,316 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 09:22:12,317 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 09:22:12,317 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 09:22:12,317 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 09:22:12,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:12" (1/1) ... [2024-02-02 09:22:12,329 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:12" (1/1) ... [2024-02-02 09:22:12,349 INFO L138 Inliner]: procedures = 24, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 102 [2024-02-02 09:22:12,349 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 09:22:12,350 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 09:22:12,350 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 09:22:12,350 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 09:22:12,365 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:12" (1/1) ... [2024-02-02 09:22:12,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:12" (1/1) ... [2024-02-02 09:22:12,368 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:12" (1/1) ... [2024-02-02 09:22:12,380 INFO L175 MemorySlicer]: Split 10 memory accesses to 5 slices as follows [2, 2, 2, 2, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-02-02 09:22:12,381 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:12" (1/1) ... [2024-02-02 09:22:12,381 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:12" (1/1) ... [2024-02-02 09:22:12,390 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:12" (1/1) ... [2024-02-02 09:22:12,394 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:12" (1/1) ... [2024-02-02 09:22:12,396 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:12" (1/1) ... [2024-02-02 09:22:12,397 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:12" (1/1) ... [2024-02-02 09:22:12,399 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 09:22:12,400 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 09:22:12,400 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 09:22:12,400 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 09:22:12,401 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:12" (1/1) ... [2024-02-02 09:22:12,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:22:12,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 09:22:12,427 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-02 09:22:12,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-02 09:22:12,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 09:22:12,462 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-02 09:22:12,462 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-02 09:22:12,463 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-02 09:22:12,463 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-02 09:22:12,463 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-02-02 09:22:12,463 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-02-02 09:22:12,463 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-02-02 09:22:12,463 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-02-02 09:22:12,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 09:22:12,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 09:22:12,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 09:22:12,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-02 09:22:12,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-02 09:22:12,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 09:22:12,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 09:22:12,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 09:22:12,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 09:22:12,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-02 09:22:12,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-02 09:22:12,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-02 09:22:12,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-02 09:22:12,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 09:22:12,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 09:22:12,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-02 09:22:12,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-02 09:22:12,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-02 09:22:12,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-02 09:22:12,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-02 09:22:12,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 09:22:12,469 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-02 09:22:12,578 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 09:22:12,579 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 09:22:12,975 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 09:22:12,976 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 09:22:13,190 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 09:22:13,190 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-02-02 09:22:13,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:22:13 BoogieIcfgContainer [2024-02-02 09:22:13,191 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 09:22:13,193 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 09:22:13,193 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 09:22:13,196 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 09:22:13,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:22:10" (1/4) ... [2024-02-02 09:22:13,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44095c26 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:22:13, skipping insertion in model container [2024-02-02 09:22:13,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:22:11" (2/4) ... [2024-02-02 09:22:13,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44095c26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:22:13, skipping insertion in model container [2024-02-02 09:22:13,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:12" (3/4) ... [2024-02-02 09:22:13,198 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44095c26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:22:13, skipping insertion in model container [2024-02-02 09:22:13,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:22:13" (4/4) ... [2024-02-02 09:22:13,199 INFO L112 eAbstractionObserver]: Analyzing ICFG test-hard1.wvr.c [2024-02-02 09:22:13,214 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 09:22:13,215 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 62 error locations. [2024-02-02 09:22:13,215 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 09:22:13,282 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-02-02 09:22:13,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 137 transitions, 302 flow [2024-02-02 09:22:13,383 INFO L124 PetriNetUnfolderBase]: 4/133 cut-off events. [2024-02-02 09:22:13,383 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-02-02 09:22:13,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 133 events. 4/133 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 549 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 117. Up to 2 conditions per place. [2024-02-02 09:22:13,387 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 137 transitions, 302 flow [2024-02-02 09:22:13,391 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 132 transitions, 288 flow [2024-02-02 09:22:13,403 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:22:13,411 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;@2001b3d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:22:13,411 INFO L358 AbstractCegarLoop]: Starting to check reachability of 122 error locations. [2024-02-02 09:22:13,413 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:22:13,413 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-02 09:22:13,413 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:22:13,413 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:22:13,414 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-02 09:22:13,414 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 119 more)] === [2024-02-02 09:22:13,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:22:13,420 INFO L85 PathProgramCache]: Analyzing trace with hash 19914, now seen corresponding path program 1 times [2024-02-02 09:22:13,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:22:13,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738222708] [2024-02-02 09:22:13,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:22:13,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:22:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:22:13,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:22:13,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:22:13,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738222708] [2024-02-02 09:22:13,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738222708] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:22:13,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:22:13,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:22:13,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84702681] [2024-02-02 09:22:13,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:22:13,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:22:13,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:22:13,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:22:13,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:22:13,914 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 137 [2024-02-02 09:22:13,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 132 transitions, 288 flow. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:22:13,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:22:13,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 137 [2024-02-02 09:22:13,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:22:22,163 INFO L124 PetriNetUnfolderBase]: 74458/109723 cut-off events. [2024-02-02 09:22:22,164 INFO L125 PetriNetUnfolderBase]: For 1944/1944 co-relation queries the response was YES. [2024-02-02 09:22:22,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211071 conditions, 109723 events. 74458/109723 cut-off events. For 1944/1944 co-relation queries the response was YES. Maximal size of possible extension queue 6811. Compared 1021523 event pairs, 73557 based on Foata normal form. 0/63066 useless extension candidates. Maximal degree in co-relation 193929. Up to 98009 conditions per place. [2024-02-02 09:22:23,091 INFO L140 encePairwiseOnDemand]: 118/137 looper letters, 60 selfloop transitions, 2 changer transitions 0/115 dead transitions. [2024-02-02 09:22:23,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 115 transitions, 378 flow [2024-02-02 09:22:23,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:22:23,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:22:23,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2024-02-02 09:22:23,109 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6082725060827251 [2024-02-02 09:22:23,111 INFO L175 Difference]: Start difference. First operand has 141 places, 132 transitions, 288 flow. Second operand 3 states and 250 transitions. [2024-02-02 09:22:23,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 115 transitions, 378 flow [2024-02-02 09:22:24,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 115 transitions, 362 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-02-02 09:22:24,302 INFO L231 Difference]: Finished difference. Result has 118 places, 115 transitions, 242 flow [2024-02-02 09:22:24,304 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=118, PETRI_TRANSITIONS=115} [2024-02-02 09:22:24,307 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -23 predicate places. [2024-02-02 09:22:24,307 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 115 transitions, 242 flow [2024-02-02 09:22:24,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:22:24,308 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:22:24,308 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-02-02 09:22:24,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 09:22:24,308 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 119 more)] === [2024-02-02 09:22:24,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:22:24,309 INFO L85 PathProgramCache]: Analyzing trace with hash 617985, now seen corresponding path program 1 times [2024-02-02 09:22:24,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:22:24,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738585217] [2024-02-02 09:22:24,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:22:24,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:22:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:22:24,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:22:24,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:22:24,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738585217] [2024-02-02 09:22:24,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738585217] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:22:24,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:22:24,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:22:24,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277034893] [2024-02-02 09:22:24,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:22:24,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:22:24,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:22:24,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:22:24,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:22:24,385 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 137 [2024-02-02 09:22:24,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 115 transitions, 242 flow. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:22:24,386 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:22:24,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 137 [2024-02-02 09:22:24,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:22:32,246 INFO L124 PetriNetUnfolderBase]: 74458/109722 cut-off events. [2024-02-02 09:22:32,260 INFO L125 PetriNetUnfolderBase]: For 271/271 co-relation queries the response was YES. [2024-02-02 09:22:32,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208846 conditions, 109722 events. 74458/109722 cut-off events. For 271/271 co-relation queries the response was YES. Maximal size of possible extension queue 6811. Compared 1021485 event pairs, 73557 based on Foata normal form. 0/63066 useless extension candidates. Maximal degree in co-relation 208837. Up to 98005 conditions per place. [2024-02-02 09:22:33,340 INFO L140 encePairwiseOnDemand]: 133/137 looper letters, 58 selfloop transitions, 3 changer transitions 0/114 dead transitions. [2024-02-02 09:22:33,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 114 transitions, 362 flow [2024-02-02 09:22:33,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:22:33,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:22:33,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 294 transitions. [2024-02-02 09:22:33,345 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5364963503649635 [2024-02-02 09:22:33,345 INFO L175 Difference]: Start difference. First operand has 118 places, 115 transitions, 242 flow. Second operand 4 states and 294 transitions. [2024-02-02 09:22:33,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 114 transitions, 362 flow [2024-02-02 09:22:33,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 114 transitions, 358 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:22:33,348 INFO L231 Difference]: Finished difference. Result has 118 places, 114 transitions, 242 flow [2024-02-02 09:22:33,348 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=242, PETRI_PLACES=118, PETRI_TRANSITIONS=114} [2024-02-02 09:22:33,350 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -23 predicate places. [2024-02-02 09:22:33,350 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 114 transitions, 242 flow [2024-02-02 09:22:33,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:22:33,351 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:22:33,351 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-02 09:22:33,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-02 09:22:33,351 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 119 more)] === [2024-02-02 09:22:33,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:22:33,355 INFO L85 PathProgramCache]: Analyzing trace with hash 19158151, now seen corresponding path program 1 times [2024-02-02 09:22:33,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:22:33,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172880526] [2024-02-02 09:22:33,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:22:33,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:22:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:22:33,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:22:33,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:22:33,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172880526] [2024-02-02 09:22:33,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172880526] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:22:33,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:22:33,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:22:33,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612674353] [2024-02-02 09:22:33,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:22:33,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:22:33,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:22:33,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:22:33,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:22:33,444 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 137 [2024-02-02 09:22:33,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 114 transitions, 242 flow. Second operand has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:22:33,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:22:33,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 137 [2024-02-02 09:22:33,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:22:40,744 INFO L124 PetriNetUnfolderBase]: 81551/120121 cut-off events. [2024-02-02 09:22:40,744 INFO L125 PetriNetUnfolderBase]: For 271/271 co-relation queries the response was YES. [2024-02-02 09:22:41,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228578 conditions, 120121 events. 81551/120121 cut-off events. For 271/271 co-relation queries the response was YES. Maximal size of possible extension queue 7393. Compared 1120094 event pairs, 80557 based on Foata normal form. 1/69968 useless extension candidates. Maximal degree in co-relation 228564. Up to 107227 conditions per place. [2024-02-02 09:22:41,656 INFO L140 encePairwiseOnDemand]: 134/137 looper letters, 59 selfloop transitions, 2 changer transitions 0/113 dead transitions. [2024-02-02 09:22:41,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 113 transitions, 362 flow [2024-02-02 09:22:41,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:22:41,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:22:41,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 236 transitions. [2024-02-02 09:22:41,657 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5742092457420924 [2024-02-02 09:22:41,657 INFO L175 Difference]: Start difference. First operand has 118 places, 114 transitions, 242 flow. Second operand 3 states and 236 transitions. [2024-02-02 09:22:41,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 113 transitions, 362 flow [2024-02-02 09:22:41,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 113 transitions, 356 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-02 09:22:41,660 INFO L231 Difference]: Finished difference. Result has 116 places, 113 transitions, 238 flow [2024-02-02 09:22:41,660 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=116, PETRI_TRANSITIONS=113} [2024-02-02 09:22:41,660 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -25 predicate places. [2024-02-02 09:22:41,661 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 113 transitions, 238 flow [2024-02-02 09:22:41,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:22:41,661 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:22:41,661 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-02 09:22:41,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-02 09:22:41,661 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 119 more)] === [2024-02-02 09:22:41,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:22:41,662 INFO L85 PathProgramCache]: Analyzing trace with hash 593903351, now seen corresponding path program 1 times [2024-02-02 09:22:41,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:22:41,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354477914] [2024-02-02 09:22:41,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:22:41,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:22:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:22:41,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:22:41,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:22:41,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354477914] [2024-02-02 09:22:41,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354477914] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:22:41,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:22:41,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:22:41,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600256232] [2024-02-02 09:22:41,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:22:41,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:22:41,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:22:41,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:22:41,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:22:41,708 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 137 [2024-02-02 09:22:41,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 113 transitions, 238 flow. Second operand has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:22:41,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:22:41,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 137 [2024-02-02 09:22:41,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand