./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/bench-exp2x9.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/bench-exp2x9.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a340643f 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/bench-exp2x9.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp2x9.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-a340643-m [2024-01-27 14:50:05,558 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 14:50:05,602 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 14:50:05,611 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 14:50:05,612 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 14:50:05,645 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 14:50:05,646 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 14:50:05,646 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 14:50:05,646 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 14:50:05,649 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 14:50:05,650 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 14:50:05,650 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 14:50:05,650 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 14:50:05,650 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 14:50:05,651 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 14:50:05,651 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 14:50:05,651 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 14:50:05,651 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 14:50:05,651 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 14:50:05,652 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 14:50:05,652 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 14:50:05,652 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 14:50:05,652 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 14:50:05,653 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 14:50:05,653 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 14:50:05,653 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 14:50:05,653 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 14:50:05,653 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 14:50:05,654 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 14:50:05,654 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 14:50:05,654 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 14:50:05,654 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 14:50:05,655 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:50:05,655 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 14:50:05,655 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 14:50:05,655 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 14:50:05,655 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 14:50:05,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 14:50:05,656 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 14:50:05,656 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 14:50:05,656 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 14:50:05,657 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 14:50:05,657 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 14:50:05,657 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 14:50:05,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 14:50:05,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 14:50:05,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 14:50:05,919 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 14:50:05,919 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 14:50:05,920 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c [2024-01-27 14:50:06,958 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 14:50:07,125 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 14:50:07,126 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c [2024-01-27 14:50:07,143 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85b5c9dcd/80a5e953e4244e2183e233f664a1f9c8/FLAG3fc12d70e [2024-01-27 14:50:07,157 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85b5c9dcd/80a5e953e4244e2183e233f664a1f9c8 [2024-01-27 14:50:07,159 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 14:50:07,160 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 14:50:07,162 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp2x9.wvr.yml/witness.yml [2024-01-27 14:50:07,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 14:50:07,254 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 14:50:07,255 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 14:50:07,255 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 14:50:07,259 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 14:50:07,259 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:50:07" (1/2) ... [2024-01-27 14:50:07,260 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b4431eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:50:07, skipping insertion in model container [2024-01-27 14:50:07,260 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:50:07" (1/2) ... [2024-01-27 14:50:07,262 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@22036c33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:50:07, skipping insertion in model container [2024-01-27 14:50:07,262 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:50:07" (2/2) ... [2024-01-27 14:50:07,262 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b4431eb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:07, skipping insertion in model container [2024-01-27 14:50:07,262 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:50:07" (2/2) ... [2024-01-27 14:50:07,263 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 14:50:07,289 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 14:50:07,290 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,291 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (long long )x1 + (long long )x3 >= 0LL [2024-01-27 14:50:07,291 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] x1 == 0U [2024-01-27 14:50:07,291 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] x2 == 0U [2024-01-27 14:50:07,291 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (0LL - (long long )x1) - (long long )x3 >= 0LL [2024-01-27 14:50:07,291 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] x3 == 0U [2024-01-27 14:50:07,291 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] x4 == 0U [2024-01-27 14:50:07,291 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (long long )x1 - (long long )x3 >= 0LL [2024-01-27 14:50:07,292 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] n == 0U [2024-01-27 14:50:07,292 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (0LL - (long long )x1) + (long long )x3 >= 0LL [2024-01-27 14:50:07,292 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,292 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] x4 == 0U [2024-01-27 14:50:07,292 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] n == 0U [2024-01-27 14:50:07,292 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,292 INFO L98 nessWitnessExtractor]: Location invariant before [L87-L87] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,292 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,293 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,293 INFO L98 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,293 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] x4 == 0U [2024-01-27 14:50:07,293 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] n == 0U [2024-01-27 14:50:07,293 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] x2 == 0U [2024-01-27 14:50:07,294 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] x3 == 0U [2024-01-27 14:50:07,294 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,294 INFO L98 nessWitnessExtractor]: Location invariant before [L99-L99] n == 0U [2024-01-27 14:50:07,294 INFO L98 nessWitnessExtractor]: Location invariant before [L99-L99] x3 == 0U [2024-01-27 14:50:07,294 INFO L98 nessWitnessExtractor]: Location invariant before [L99-L99] x4 == 0U [2024-01-27 14:50:07,294 INFO L98 nessWitnessExtractor]: Location invariant before [L72-L72] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,294 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,294 INFO L98 nessWitnessExtractor]: Loop invariant at [L66-L74] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,295 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,295 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,295 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,295 INFO L98 nessWitnessExtractor]: Location invariant before [L101-L101] n == 0U [2024-01-27 14:50:07,295 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,295 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,296 INFO L98 nessWitnessExtractor]: Location invariant before [L84-L84] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,296 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,296 INFO L98 nessWitnessExtractor]: Location invariant before [L83-L83] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,297 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] n == 0U [2024-01-27 14:50:07,297 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,297 INFO L98 nessWitnessExtractor]: Location invariant before [L40-L40] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,298 INFO L98 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,298 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,298 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,298 INFO L98 nessWitnessExtractor]: Location invariant before [L76-L76] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,298 INFO L98 nessWitnessExtractor]: Loop invariant at [L38-L46] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,298 INFO L98 nessWitnessExtractor]: Location invariant before [L59-L59] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,298 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,299 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,299 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,299 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,299 INFO L98 nessWitnessExtractor]: Location invariant before [L39-L39] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,299 INFO L98 nessWitnessExtractor]: Location invariant before [L81-L81] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,299 INFO L98 nessWitnessExtractor]: Loop invariant at [L80-L88] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,300 INFO L98 nessWitnessExtractor]: Loop invariant at [L52-L60] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,300 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-27 14:50:07,318 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 14:50:07,488 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/bench-exp2x9.wvr.c[2721,2734] [2024-01-27 14:50:07,492 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:50:07,505 INFO L202 MainTranslator]: Completed pre-run 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 [2024-01-27 14:50:07,592 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/bench-exp2x9.wvr.c[2721,2734] [2024-01-27 14:50:07,593 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:50:07,606 INFO L206 MainTranslator]: Completed translation [2024-01-27 14:50:07,607 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:07 WrapperNode [2024-01-27 14:50:07,607 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 14:50:07,607 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 14:50:07,607 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 14:50:07,608 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 14:50:07,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:07" (1/1) ... [2024-01-27 14:50:07,631 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:07" (1/1) ... [2024-01-27 14:50:07,661 INFO L138 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 114 [2024-01-27 14:50:07,662 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 14:50:07,662 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 14:50:07,663 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 14:50:07,663 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 14:50:07,671 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:07" (1/1) ... [2024-01-27 14:50:07,671 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:07" (1/1) ... [2024-01-27 14:50:07,682 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:07" (1/1) ... [2024-01-27 14:50:07,706 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]. [2024-01-27 14:50:07,706 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:07" (1/1) ... [2024-01-27 14:50:07,707 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:07" (1/1) ... [2024-01-27 14:50:07,722 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:07" (1/1) ... [2024-01-27 14:50:07,726 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:07" (1/1) ... [2024-01-27 14:50:07,730 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:07" (1/1) ... [2024-01-27 14:50:07,731 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:07" (1/1) ... [2024-01-27 14:50:07,734 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 14:50:07,737 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 14:50:07,737 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 14:50:07,737 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 14:50:07,738 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:07" (1/1) ... [2024-01-27 14:50:07,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:50:07,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:50:07,771 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) [2024-01-27 14:50:07,782 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 [2024-01-27 14:50:07,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 14:50:07,828 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-27 14:50:07,828 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-27 14:50:07,828 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-27 14:50:07,829 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-27 14:50:07,829 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-27 14:50:07,829 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-27 14:50:07,829 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-27 14:50:07,829 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-27 14:50:07,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 14:50:07,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 14:50:07,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 14:50:07,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 14:50:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-27 14:50:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 14:50:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 14:50:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 14:50:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 14:50:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 14:50:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-27 14:50:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 14:50:07,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 14:50:07,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 14:50:07,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 14:50:07,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 14:50:07,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 14:50:07,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-27 14:50:07,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 14:50:07,832 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 14:50:07,917 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 14:50:07,918 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 14:50:08,253 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 14:50:08,253 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 14:50:08,381 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 14:50:08,382 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-27 14:50:08,383 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:50:08 BoogieIcfgContainer [2024-01-27 14:50:08,383 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 14:50:08,385 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 14:50:08,385 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 14:50:08,388 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 14:50:08,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 02:50:07" (1/4) ... [2024-01-27 14:50:08,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42779e07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:50:08, skipping insertion in model container [2024-01-27 14:50:08,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:50:07" (2/4) ... [2024-01-27 14:50:08,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42779e07 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:50:08, skipping insertion in model container [2024-01-27 14:50:08,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:50:07" (3/4) ... [2024-01-27 14:50:08,390 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42779e07 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:50:08, skipping insertion in model container [2024-01-27 14:50:08,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:50:08" (4/4) ... [2024-01-27 14:50:08,391 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x9.wvr.c [2024-01-27 14:50:08,404 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 14:50:08,404 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 61 error locations. [2024-01-27 14:50:08,404 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 14:50:08,520 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-27 14:50:08,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 155 transitions, 338 flow [2024-01-27 14:50:08,613 INFO L124 PetriNetUnfolderBase]: 4/151 cut-off events. [2024-01-27 14:50:08,613 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-27 14:50:08,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 151 events. 4/151 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 496 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 122. Up to 2 conditions per place. [2024-01-27 14:50:08,619 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 155 transitions, 338 flow [2024-01-27 14:50:08,653 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 150 transitions, 324 flow [2024-01-27 14:50:08,665 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 14:50:08,672 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;@566d76ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 14:50:08,672 INFO L358 AbstractCegarLoop]: Starting to check reachability of 106 error locations. [2024-01-27 14:50:08,675 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 14:50:08,675 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 14:50:08,676 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:50:08,676 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:50:08,676 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 14:50:08,692 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-01-27 14:50:08,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:50:08,696 INFO L85 PathProgramCache]: Analyzing trace with hash 16538, now seen corresponding path program 1 times [2024-01-27 14:50:08,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:50:08,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675835437] [2024-01-27 14:50:08,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:50:08,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:50:08,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:50:08,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:50:08,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:50:08,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675835437] [2024-01-27 14:50:08,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675835437] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:50:08,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:50:08,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:50:08,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306501543] [2024-01-27 14:50:08,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:50:08,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:50:08,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:50:08,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:50:08,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:50:08,965 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 155 [2024-01-27 14:50:08,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 150 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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) [2024-01-27 14:50:08,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:50:08,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 155 [2024-01-27 14:50:08,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:50:20,125 INFO L124 PetriNetUnfolderBase]: 92052/155596 cut-off events. [2024-01-27 14:50:20,126 INFO L125 PetriNetUnfolderBase]: For 4187/4187 co-relation queries the response was YES. [2024-01-27 14:50:20,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275364 conditions, 155596 events. 92052/155596 cut-off events. For 4187/4187 co-relation queries the response was YES. Maximal size of possible extension queue 6014. Compared 1580795 event pairs, 73557 based on Foata normal form. 5/147227 useless extension candidates. Maximal degree in co-relation 253303. Up to 116429 conditions per place. [2024-01-27 14:50:21,749 INFO L140 encePairwiseOnDemand]: 147/155 looper letters, 58 selfloop transitions, 2 changer transitions 0/144 dead transitions. [2024-01-27 14:50:21,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 144 transitions, 432 flow [2024-01-27 14:50:21,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:50:21,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:50:21,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 330 transitions. [2024-01-27 14:50:21,760 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7096774193548387 [2024-01-27 14:50:21,761 INFO L175 Difference]: Start difference. First operand has 159 places, 150 transitions, 324 flow. Second operand 3 states and 330 transitions. [2024-01-27 14:50:21,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 144 transitions, 432 flow [2024-01-27 14:50:21,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 144 transitions, 416 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-01-27 14:50:21,843 INFO L231 Difference]: Finished difference. Result has 147 places, 144 transitions, 300 flow [2024-01-27 14:50:21,845 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=147, PETRI_TRANSITIONS=144} [2024-01-27 14:50:21,848 INFO L281 CegarLoopForPetriNet]: 159 programPoint places, -12 predicate places. [2024-01-27 14:50:21,848 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 144 transitions, 300 flow [2024-01-27 14:50:21,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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) [2024-01-27 14:50:21,849 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:50:21,849 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-27 14:50:21,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 14:50:21,849 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-01-27 14:50:21,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:50:21,850 INFO L85 PathProgramCache]: Analyzing trace with hash 513226, now seen corresponding path program 1 times [2024-01-27 14:50:21,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:50:21,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944735179] [2024-01-27 14:50:21,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:50:21,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:50:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:50:21,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:50:21,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:50:21,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944735179] [2024-01-27 14:50:21,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944735179] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:50:21,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:50:21,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:50:21,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45562089] [2024-01-27 14:50:21,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:50:21,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:50:21,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:50:21,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:50:21,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:50:21,949 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 155 [2024-01-27 14:50:21,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 144 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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) [2024-01-27 14:50:21,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:50:21,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 155 [2024-01-27 14:50:21,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:50:34,472 INFO L124 PetriNetUnfolderBase]: 142422/223179 cut-off events. [2024-01-27 14:50:34,472 INFO L125 PetriNetUnfolderBase]: For 1336/1336 co-relation queries the response was YES. [2024-01-27 14:50:34,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 405170 conditions, 223179 events. 142422/223179 cut-off events. For 1336/1336 co-relation queries the response was YES. Maximal size of possible extension queue 7896. Compared 2101872 event pairs, 116597 based on Foata normal form. 3/184272 useless extension candidates. Maximal degree in co-relation 405151. Up to 180385 conditions per place. [2024-01-27 14:50:36,032 INFO L140 encePairwiseOnDemand]: 148/155 looper letters, 61 selfloop transitions, 2 changer transitions 0/139 dead transitions. [2024-01-27 14:50:36,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 139 transitions, 416 flow [2024-01-27 14:50:36,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:50:36,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:50:36,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 323 transitions. [2024-01-27 14:50:36,035 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6946236559139785 [2024-01-27 14:50:36,035 INFO L175 Difference]: Start difference. First operand has 147 places, 144 transitions, 300 flow. Second operand 3 states and 323 transitions. [2024-01-27 14:50:36,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 139 transitions, 416 flow [2024-01-27 14:50:36,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 139 transitions, 412 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:50:36,037 INFO L231 Difference]: Finished difference. Result has 142 places, 139 transitions, 290 flow [2024-01-27 14:50:36,038 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=142, PETRI_TRANSITIONS=139} [2024-01-27 14:50:36,038 INFO L281 CegarLoopForPetriNet]: 159 programPoint places, -17 predicate places. [2024-01-27 14:50:36,038 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 139 transitions, 290 flow [2024-01-27 14:50:36,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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) [2024-01-27 14:50:36,039 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:50:36,039 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-27 14:50:36,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 14:50:36,039 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-01-27 14:50:36,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:50:36,039 INFO L85 PathProgramCache]: Analyzing trace with hash 493228088, now seen corresponding path program 1 times [2024-01-27 14:50:36,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:50:36,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146869694] [2024-01-27 14:50:36,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:50:36,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:50:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:50:36,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:50:36,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:50:36,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146869694] [2024-01-27 14:50:36,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146869694] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:50:36,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:50:36,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:50:36,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821551415] [2024-01-27 14:50:36,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:50:36,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:50:36,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:50:36,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:50:36,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:50:36,166 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 155 [2024-01-27 14:50:36,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 139 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 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) [2024-01-27 14:50:36,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:50:36,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 155 [2024-01-27 14:50:36,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand