./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.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/popl20-bad-buffer-mult-alt2.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/popl20-bad-buffer-mult-alt2.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-bad-buffer-mult-alt2.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 09:20:44,294 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 09:20:44,396 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 09:20:44,413 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 09:20:44,413 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 09:20:44,450 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 09:20:44,451 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 09:20:44,451 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 09:20:44,452 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 09:20:44,455 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 09:20:44,455 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 09:20:44,455 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 09:20:44,456 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 09:20:44,457 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 09:20:44,457 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 09:20:44,458 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 09:20:44,458 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 09:20:44,458 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 09:20:44,458 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 09:20:44,459 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 09:20:44,459 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 09:20:44,459 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 09:20:44,459 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 09:20:44,460 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 09:20:44,460 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 09:20:44,460 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 09:20:44,460 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 09:20:44,461 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 09:20:44,468 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 09:20:44,469 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 09:20:44,470 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 09:20:44,470 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 09:20:44,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:20:44,470 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 09:20:44,470 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 09:20:44,471 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 09:20:44,471 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 09:20:44,471 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 09:20:44,471 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 09:20:44,472 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 09:20:44,472 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 09:20:44,472 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 09:20:44,473 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 09:20:44,473 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 09:20:44,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 09:20:44,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 09:20:44,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 09:20:44,925 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 09:20:44,926 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 09:20:44,927 INFO L431 ainManager$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/popl20-bad-buffer-mult-alt2.wvr.yml/witness.yml [2024-02-02 09:20:45,142 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 09:20:45,143 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 09:20:45,144 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2024-02-02 09:20:46,271 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 09:20:46,453 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 09:20:46,454 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2024-02-02 09:20:46,461 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/898bf45d7/7bcae55ef8ea4a01b954f92df3476002/FLAG269ae7057 [2024-02-02 09:20:46,473 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/898bf45d7/7bcae55ef8ea4a01b954f92df3476002 [2024-02-02 09:20:46,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 09:20:46,495 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 09:20:46,496 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 09:20:46,496 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 09:20:46,543 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 09:20:46,544 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:20:45" (1/2) ... [2024-02-02 09:20:46,544 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@340e329e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:20:46, skipping insertion in model container [2024-02-02 09:20:46,544 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:20:45" (1/2) ... [2024-02-02 09:20:46,545 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@51a53e97 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:20:46, skipping insertion in model container [2024-02-02 09:20:46,545 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:20:46" (2/2) ... [2024-02-02 09:20:46,546 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@340e329e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:46, skipping insertion in model container [2024-02-02 09:20:46,546 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:20:46" (2/2) ... [2024-02-02 09:20:46,546 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 09:20:46,595 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 09:20:46,597 INFO L101 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-02-02 09:20:46,597 INFO L101 nessWitnessExtractor]: Location invariant before [L77-L77] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,597 INFO L101 nessWitnessExtractor]: Loop invariant at [L87-L96] (unsigned long )_argptr == 0UL [2024-02-02 09:20:46,597 INFO L101 nessWitnessExtractor]: Location invariant before [L169-L169] (0 <= i) && (0 <= j) [2024-02-02 09:20:46,597 INFO L101 nessWitnessExtractor]: Location invariant before [L104-L104] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,597 INFO L101 nessWitnessExtractor]: Location invariant before [L67-L67] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,597 INFO L101 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-02-02 09:20:46,597 INFO L101 nessWitnessExtractor]: Location invariant before [L161-L161] (((((q2 == 0) && (i == 0)) && (j == 0)) && (total == 0)) && (size != 0)) && ((((((((((8 <= i && 9 <= size) && i <= 2147483646) || (8 <= size && i == 7)) || (7 <= size && i == 6)) || (6 <= size && i == 5)) || (5 <= size && i == 4)) || (4 <= size && i == 3)) || (3 <= size && i == 2)) || (2 <= size && i == 1)) || ((1 <= size && 0 == i) && i == 0)) [2024-02-02 09:20:46,598 INFO L101 nessWitnessExtractor]: Location invariant before [L92-L92] (((-2147483647 <= q1_front) && (0 <= i)) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,598 INFO L101 nessWitnessExtractor]: Location invariant before [L91-L91] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,598 INFO L101 nessWitnessExtractor]: Location invariant before [L52-L52] (unsigned long )_argptr == 0UL [2024-02-02 09:20:46,598 INFO L101 nessWitnessExtractor]: Location invariant before [L102-L102] (unsigned long )_argptr == 0UL [2024-02-02 09:20:46,598 INFO L101 nessWitnessExtractor]: Location invariant before [L76-L76] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,598 INFO L101 nessWitnessExtractor]: Location invariant before [L90-L90] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,598 INFO L101 nessWitnessExtractor]: Location invariant before [L140-L140] ((i == 0) && (j == 0)) && (total == 0) [2024-02-02 09:20:46,599 INFO L101 nessWitnessExtractor]: Location invariant before [L167-L167] (((0 <= i) && (0 <= j)) && (b <= -1)) && (b != 0) [2024-02-02 09:20:46,599 INFO L101 nessWitnessExtractor]: Location invariant before [L110-L110] (((-2147483647 <= q2_front) && (0 <= i)) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,599 INFO L101 nessWitnessExtractor]: Location invariant before [L88-L88] (unsigned long )_argptr == 0UL [2024-02-02 09:20:46,599 INFO L101 nessWitnessExtractor]: Location invariant before [L95-L95] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,599 INFO L101 nessWitnessExtractor]: Loop invariant at [L69-L78] (unsigned long )_argptr == 0UL [2024-02-02 09:20:46,599 INFO L101 nessWitnessExtractor]: Location invariant before [L94-L94] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,599 INFO L101 nessWitnessExtractor]: Location invariant before [L74-L74] (((-2147483647 <= q2_back) && (0 <= i)) && (1 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,600 INFO L101 nessWitnessExtractor]: Location invariant before [L116-L116] (unsigned long )_argptr == 0UL [2024-02-02 09:20:46,600 INFO L101 nessWitnessExtractor]: Location invariant before [L86-L86] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,600 INFO L101 nessWitnessExtractor]: Location invariant before [L50-L50] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,600 INFO L101 nessWitnessExtractor]: Location invariant before [L156-L156] (((q2 == 0) && (i == 0)) && (j == 0)) && (total == 0) [2024-02-02 09:20:46,600 INFO L101 nessWitnessExtractor]: Location invariant before [L106-L106] (unsigned long )_argptr == 0UL [2024-02-02 09:20:46,600 INFO L101 nessWitnessExtractor]: Location invariant before [L108-L108] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,600 INFO L101 nessWitnessExtractor]: Location invariant before [L75-L75] (unsigned long )_argptr == 0UL [2024-02-02 09:20:46,600 INFO L101 nessWitnessExtractor]: Location invariant before [L103-L103] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,601 INFO L101 nessWitnessExtractor]: Location invariant before [L126-L126] ((((((((((q1 == 0) && (q2 == 0)) && (i == 0)) && (j == 0)) && (total == 0)) && (q1_front == 0)) && (q1_back == 0)) && (q2_front == 0)) && (q2_back == 0)) && (n1 == 0)) && (n2 == 0) [2024-02-02 09:20:46,601 INFO L101 nessWitnessExtractor]: Location invariant before [L132-L132] (((((q1 == 0) && (q2 == 0)) && (i == 0)) && (j == 0)) && (total == 0)) && (n2 == 0) [2024-02-02 09:20:46,601 INFO L101 nessWitnessExtractor]: Location invariant before [L85-L85] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,601 INFO L101 nessWitnessExtractor]: Location invariant before [L98-L98] (unsigned long )_argptr == 0UL [2024-02-02 09:20:46,601 INFO L101 nessWitnessExtractor]: Location invariant before [L55-L55] (((-2147483647 <= q1_back) && (0 <= i)) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,601 INFO L101 nessWitnessExtractor]: Location invariant before [L72-L72] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,601 INFO L101 nessWitnessExtractor]: Location invariant before [L22-L25] (((q2 == 0) && (i == 0)) && (j == 0)) && (total == 0) [2024-02-02 09:20:46,602 INFO L101 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-02-02 09:20:46,602 INFO L101 nessWitnessExtractor]: Location invariant before [L113-L113] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,602 INFO L101 nessWitnessExtractor]: Location invariant before [L53-L53] (((0 <= i) && (0 <= j)) && (0 <= q1_back)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,602 INFO L101 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-02-02 09:20:46,602 INFO L101 nessWitnessExtractor]: Loop invariant at [L105-L114] (unsigned long )_argptr == 0UL [2024-02-02 09:20:46,602 INFO L101 nessWitnessExtractor]: Location invariant before [L71-L71] (((0 <= i) && (0 <= j)) && (0 <= q2_back)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,602 INFO L101 nessWitnessExtractor]: Location invariant before [L68-L68] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,602 INFO L101 nessWitnessExtractor]: Location invariant before [L157-L157] (((q2 == 0) && (i == 0)) && (j == 0)) && (total == 0) [2024-02-02 09:20:46,603 INFO L101 nessWitnessExtractor]: Location invariant before [L59-L59] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,603 INFO L101 nessWitnessExtractor]: Location invariant before [L123-L123] ((((((((((((q1 == 0) && (q2 == 0)) && (i == 0)) && (j == 0)) && (total == 0)) && (N == 0)) && (M == 0)) && (q1_front == 0)) && (q1_back == 0)) && (q2_front == 0)) && (q2_back == 0)) && (n1 == 0)) && (n2 == 0) [2024-02-02 09:20:46,603 INFO L101 nessWitnessExtractor]: Location invariant before [L93-L93] (unsigned long )_argptr == 0UL [2024-02-02 09:20:46,603 INFO L101 nessWitnessExtractor]: Location invariant before [L122-L122] (((((((((((((q1 == 0) && (q2 == 0)) && (i == 0)) && (j == 0)) && (total == 0)) && (C == 0)) && (N == 0)) && (M == 0)) && (q1_front == 0)) && (q1_back == 0)) && (q2_front == 0)) && (q2_back == 0)) && (n1 == 0)) && (n2 == 0) [2024-02-02 09:20:46,603 INFO L101 nessWitnessExtractor]: Location invariant before [L137-L137] ((((-2147483647 <= N) && (M <= 2147483646)) && (i == 0)) && (j == 0)) && (total == 0) [2024-02-02 09:20:46,603 INFO L101 nessWitnessExtractor]: Location invariant before [L128-L128] ((((((((q1 == 0) && (q2 == 0)) && (i == 0)) && (j == 0)) && (total == 0)) && (q2_front == 0)) && (q2_back == 0)) && (n1 == 0)) && (n2 == 0) [2024-02-02 09:20:46,603 INFO L101 nessWitnessExtractor]: Location invariant before [L124-L124] (((((((((((q1 == 0) && (q2 == 0)) && (i == 0)) && (j == 0)) && (total == 0)) && (N == 0)) && (q1_front == 0)) && (q1_back == 0)) && (q2_front == 0)) && (q2_back == 0)) && (n1 == 0)) && (n2 == 0) [2024-02-02 09:20:46,604 INFO L101 nessWitnessExtractor]: Location invariant before [L84-L84] (unsigned long )_argptr == 0UL [2024-02-02 09:20:46,604 INFO L101 nessWitnessExtractor]: Location invariant before [L131-L131] ((((((q1 == 0) && (q2 == 0)) && (i == 0)) && (j == 0)) && (total == 0)) && (n1 == 0)) && (n2 == 0) [2024-02-02 09:20:46,604 INFO L101 nessWitnessExtractor]: Location invariant before [L109-L109] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,604 INFO L101 nessWitnessExtractor]: Location invariant before [L134-L134] (((q2 == 0) && (i == 0)) && (j == 0)) && (total == 0) [2024-02-02 09:20:46,604 INFO L101 nessWitnessExtractor]: Location invariant before [L111-L111] (unsigned long )_argptr == 0UL [2024-02-02 09:20:46,604 INFO L101 nessWitnessExtractor]: Loop invariant at [L160-L162] ((((q2 == 0) && (i == 0)) && (j == 0)) && (total == 0)) && ((size != 0 && ((((((((8 <= size && 8 <= i) || (7 <= size && i == 7)) || (6 <= size && i == 6)) || (5 <= size && i == 5)) || (4 <= size && i == 4)) || (3 <= size && i == 3)) || (2 <= size && i == 2)) || (1 <= size && i == 1))) || (0 == i && i == 0)) [2024-02-02 09:20:46,604 INFO L101 nessWitnessExtractor]: Location invariant before [L56-L56] (((-2147483647 <= q1_back) && (0 <= j)) && (1 <= i)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,605 INFO L101 nessWitnessExtractor]: Location invariant before [L133-L133] ((((q1 == 0) && (q2 == 0)) && (i == 0)) && (j == 0)) && (total == 0) [2024-02-02 09:20:46,605 INFO L101 nessWitnessExtractor]: Location invariant before [L129-L129] (((((((q1 == 0) && (q2 == 0)) && (i == 0)) && (j == 0)) && (total == 0)) && (q2_back == 0)) && (n1 == 0)) && (n2 == 0) [2024-02-02 09:20:46,605 INFO L101 nessWitnessExtractor]: Location invariant before [L73-L73] (((-2147483647 <= q2_back) && (0 <= i)) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,605 INFO L101 nessWitnessExtractor]: Location invariant before [L54-L54] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,605 INFO L101 nessWitnessExtractor]: Location invariant before [L107-L107] (((0 <= i) && (0 <= j)) && (0 <= q2_front)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,605 INFO L101 nessWitnessExtractor]: Loop invariant at [L51-L60] (unsigned long )_argptr == 0UL [2024-02-02 09:20:46,605 INFO L101 nessWitnessExtractor]: Location invariant before [L70-L70] (unsigned long )_argptr == 0UL [2024-02-02 09:20:46,605 INFO L101 nessWitnessExtractor]: Location invariant before [L127-L127] (((((((((q1 == 0) && (q2 == 0)) && (i == 0)) && (j == 0)) && (total == 0)) && (q1_back == 0)) && (q2_front == 0)) && (q2_back == 0)) && (n1 == 0)) && (n2 == 0) [2024-02-02 09:20:46,605 INFO L101 nessWitnessExtractor]: Location invariant before [L163-L163] ((((0 <= i) && (q2 == 0)) && (i == 0)) && (j == 0)) && (total == 0) [2024-02-02 09:20:46,606 INFO L101 nessWitnessExtractor]: Location invariant before [L168-L168] (0 <= i) && (0 <= j) [2024-02-02 09:20:46,606 INFO L101 nessWitnessExtractor]: Location invariant before [L89-L89] (((0 <= i) && (0 <= j)) && (0 <= q1_front)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,606 INFO L101 nessWitnessExtractor]: Location invariant before [L112-L112] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,606 INFO L101 nessWitnessExtractor]: Location invariant before [L49-L49] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,606 INFO L101 nessWitnessExtractor]: Location invariant before [L136-L136] ((i == 0) && (j == 0)) && (total == 0) [2024-02-02 09:20:46,606 INFO L101 nessWitnessExtractor]: Location invariant before [L159-L159] (((q2 == 0) && (i == 0)) && (j == 0)) && (total == 0) [2024-02-02 09:20:46,606 INFO L101 nessWitnessExtractor]: Location invariant before [L58-L58] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:20:46,606 INFO L101 nessWitnessExtractor]: Location invariant before [L80-L80] (unsigned long )_argptr == 0UL [2024-02-02 09:20:46,628 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-02 09:20:46,802 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/popl20-bad-buffer-mult-alt2.wvr.c[4226,4239] [2024-02-02 09:20:46,816 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:20:46,826 INFO L202 MainTranslator]: Completed pre-run [2024-02-02 09:20:46,842 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 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 09:20:46,938 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/popl20-bad-buffer-mult-alt2.wvr.c[4226,4239] 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 09:20:46,954 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:20:46,968 INFO L206 MainTranslator]: Completed translation [2024-02-02 09:20:46,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:46 WrapperNode [2024-02-02 09:20:46,969 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 09:20:46,970 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 09:20:46,970 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 09:20:46,970 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 09:20:46,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:46" (1/1) ... [2024-02-02 09:20:46,993 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:46" (1/1) ... [2024-02-02 09:20:47,043 INFO L138 Inliner]: procedures = 26, calls = 75, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 421 [2024-02-02 09:20:47,052 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 09:20:47,053 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 09:20:47,053 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 09:20:47,053 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 09:20:47,069 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:46" (1/1) ... [2024-02-02 09:20:47,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:46" (1/1) ... [2024-02-02 09:20:47,099 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:46" (1/1) ... [2024-02-02 09:20:47,133 INFO L175 MemorySlicer]: Split 16 memory accesses to 6 slices as follows [2, 2, 2, 6, 2, 2]. 38 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 6 writes are split as follows [0, 1, 1, 2, 1, 1]. [2024-02-02 09:20:47,146 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:46" (1/1) ... [2024-02-02 09:20:47,147 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:46" (1/1) ... [2024-02-02 09:20:47,181 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:46" (1/1) ... [2024-02-02 09:20:47,189 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:46" (1/1) ... [2024-02-02 09:20:47,198 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:46" (1/1) ... [2024-02-02 09:20:47,200 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:46" (1/1) ... [2024-02-02 09:20:47,209 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 09:20:47,217 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 09:20:47,217 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 09:20:47,217 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 09:20:47,218 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:46" (1/1) ... [2024-02-02 09:20:47,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:20:47,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 09:20:47,262 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 09:20:47,302 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 09:20:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 09:20:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 09:20:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 09:20:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 09:20:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 09:20:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-02 09:20:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-02 09:20:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-02-02 09:20:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-02 09:20:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-02 09:20:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-02 09:20:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-02 09:20:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-02 09:20:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-02-02 09:20:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-02 09:20:47,315 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-02 09:20:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-02 09:20:47,316 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-02 09:20:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-02-02 09:20:47,316 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-02-02 09:20:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-02-02 09:20:47,316 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-02-02 09:20:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 09:20:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 09:20:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 09:20:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-02 09:20:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-02 09:20:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-02-02 09:20:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-02 09:20:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-02 09:20:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-02-02 09:20:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 09:20:47,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 09:20:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 09:20:47,319 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 09:20:47,417 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 09:20:47,419 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 09:20:48,084 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 09:20:48,085 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 09:20:48,558 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 09:20:48,558 INFO L320 CfgBuilder]: Removed 6 assume(true) statements. [2024-02-02 09:20:48,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:20:48 BoogieIcfgContainer [2024-02-02 09:20:48,559 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 09:20:48,560 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 09:20:48,560 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 09:20:48,563 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 09:20:48,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:20:45" (1/4) ... [2024-02-02 09:20:48,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6413781a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:20:48, skipping insertion in model container [2024-02-02 09:20:48,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:20:46" (2/4) ... [2024-02-02 09:20:48,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6413781a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:20:48, skipping insertion in model container [2024-02-02 09:20:48,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:20:46" (3/4) ... [2024-02-02 09:20:48,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6413781a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:20:48, skipping insertion in model container [2024-02-02 09:20:48,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:20:48" (4/4) ... [2024-02-02 09:20:48,565 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt2.wvr.c [2024-02-02 09:20:48,580 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 09:20:48,580 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 91 error locations. [2024-02-02 09:20:48,580 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 09:20:48,713 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-02-02 09:20:48,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 200 places, 193 transitions, 414 flow [2024-02-02 09:20:48,823 INFO L124 PetriNetUnfolderBase]: 6/189 cut-off events. [2024-02-02 09:20:48,824 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-02-02 09:20:48,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 189 events. 6/189 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 647 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 154. Up to 2 conditions per place. [2024-02-02 09:20:48,829 INFO L82 GeneralOperation]: Start removeDead. Operand has 200 places, 193 transitions, 414 flow [2024-02-02 09:20:48,838 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 195 places, 188 transitions, 400 flow [2024-02-02 09:20:48,845 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:20:48,850 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;@5873d18e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:20:48,851 INFO L358 AbstractCegarLoop]: Starting to check reachability of 157 error locations. [2024-02-02 09:20:48,853 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:20:48,853 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-02 09:20:48,854 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:20:48,858 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:20:48,859 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-02 09:20:48,860 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 154 more)] === [2024-02-02 09:20:48,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:20:48,866 INFO L85 PathProgramCache]: Analyzing trace with hash 38370, now seen corresponding path program 1 times [2024-02-02 09:20:48,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:20:48,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984085866] [2024-02-02 09:20:48,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:20:48,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:20:48,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:20:49,292 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 09:20:49,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:20:49,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984085866] [2024-02-02 09:20:49,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984085866] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:20:49,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:20:49,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:20:49,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176018571] [2024-02-02 09:20:49,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:20:49,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:20:49,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:20:49,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:20:49,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:20:49,383 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 193 [2024-02-02 09:20:49,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 188 transitions, 400 flow. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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 09:20:49,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:20:49,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 193 [2024-02-02 09:20:49,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:20:58,400 INFO L124 PetriNetUnfolderBase]: 60444/89177 cut-off events. [2024-02-02 09:20:58,400 INFO L125 PetriNetUnfolderBase]: For 1767/1767 co-relation queries the response was YES. [2024-02-02 09:20:58,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171787 conditions, 89177 events. 60444/89177 cut-off events. For 1767/1767 co-relation queries the response was YES. Maximal size of possible extension queue 5297. Compared 806951 event pairs, 59721 based on Foata normal form. 0/53426 useless extension candidates. Maximal degree in co-relation 156177. Up to 79791 conditions per place. [2024-02-02 09:20:59,285 INFO L140 encePairwiseOnDemand]: 166/193 looper letters, 96 selfloop transitions, 2 changer transitions 0/163 dead transitions. [2024-02-02 09:20:59,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 163 transitions, 546 flow [2024-02-02 09:20:59,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:20:59,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:20:59,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 330 transitions. [2024-02-02 09:20:59,296 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5699481865284974 [2024-02-02 09:20:59,297 INFO L175 Difference]: Start difference. First operand has 195 places, 188 transitions, 400 flow. Second operand 3 states and 330 transitions. [2024-02-02 09:20:59,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 163 transitions, 546 flow [2024-02-02 09:20:59,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 163 transitions, 530 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-02-02 09:20:59,457 INFO L231 Difference]: Finished difference. Result has 164 places, 163 transitions, 338 flow [2024-02-02 09:20:59,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=164, PETRI_TRANSITIONS=163} [2024-02-02 09:20:59,461 INFO L281 CegarLoopForPetriNet]: 195 programPoint places, -31 predicate places. [2024-02-02 09:20:59,461 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 163 transitions, 338 flow [2024-02-02 09:20:59,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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 09:20:59,461 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:20:59,461 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-02-02 09:20:59,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 09:20:59,462 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 154 more)] === [2024-02-02 09:20:59,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:20:59,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1190662, now seen corresponding path program 1 times [2024-02-02 09:20:59,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:20:59,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509582257] [2024-02-02 09:20:59,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:20:59,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:20:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:20:59,732 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 09:20:59,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:20:59,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509582257] [2024-02-02 09:20:59,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509582257] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:20:59,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:20:59,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:20:59,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65564777] [2024-02-02 09:20:59,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:20:59,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:20:59,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:20:59,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:20:59,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:20:59,773 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 193 [2024-02-02 09:20:59,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 163 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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 09:20:59,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:20:59,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 193 [2024-02-02 09:20:59,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:21:06,713 INFO L124 PetriNetUnfolderBase]: 60444/89176 cut-off events. [2024-02-02 09:21:06,713 INFO L125 PetriNetUnfolderBase]: For 252/252 co-relation queries the response was YES. [2024-02-02 09:21:06,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169872 conditions, 89176 events. 60444/89176 cut-off events. For 252/252 co-relation queries the response was YES. Maximal size of possible extension queue 5297. Compared 806672 event pairs, 59721 based on Foata normal form. 0/53426 useless extension candidates. Maximal degree in co-relation 169863. Up to 79789 conditions per place. [2024-02-02 09:21:07,638 INFO L140 encePairwiseOnDemand]: 190/193 looper letters, 95 selfloop transitions, 2 changer transitions 0/162 dead transitions. [2024-02-02 09:21:07,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 162 transitions, 530 flow [2024-02-02 09:21:07,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:21:07,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:21:07,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 308 transitions. [2024-02-02 09:21:07,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.531951640759931 [2024-02-02 09:21:07,647 INFO L175 Difference]: Start difference. First operand has 164 places, 163 transitions, 338 flow. Second operand 3 states and 308 transitions. [2024-02-02 09:21:07,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 162 transitions, 530 flow [2024-02-02 09:21:07,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 162 transitions, 526 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:21:07,651 INFO L231 Difference]: Finished difference. Result has 163 places, 162 transitions, 336 flow [2024-02-02 09:21:07,652 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=163, PETRI_TRANSITIONS=162} [2024-02-02 09:21:07,652 INFO L281 CegarLoopForPetriNet]: 195 programPoint places, -32 predicate places. [2024-02-02 09:21:07,653 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 162 transitions, 336 flow [2024-02-02 09:21:07,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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 09:21:07,653 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:21:07,653 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-02 09:21:07,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-02 09:21:07,654 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 154 more)] === [2024-02-02 09:21:07,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:21:07,656 INFO L85 PathProgramCache]: Analyzing trace with hash 36911798, now seen corresponding path program 1 times [2024-02-02 09:21:07,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:21:07,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690140899] [2024-02-02 09:21:07,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:21:07,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:21:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:21:07,795 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 09:21:07,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:21:07,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690140899] [2024-02-02 09:21:07,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690140899] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:21:07,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:21:07,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:21:07,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578930008] [2024-02-02 09:21:07,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:21:07,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:21:07,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:21:07,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:21:07,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:21:07,839 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 193 [2024-02-02 09:21:07,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 162 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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 09:21:07,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:21:07,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 193 [2024-02-02 09:21:07,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:21:14,204 INFO L124 PetriNetUnfolderBase]: 60444/89175 cut-off events. [2024-02-02 09:21:14,204 INFO L125 PetriNetUnfolderBase]: For 252/252 co-relation queries the response was YES. [2024-02-02 09:21:14,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169869 conditions, 89175 events. 60444/89175 cut-off events. For 252/252 co-relation queries the response was YES. Maximal size of possible extension queue 5297. Compared 807582 event pairs, 59721 based on Foata normal form. 0/53427 useless extension candidates. Maximal degree in co-relation 169858. Up to 79786 conditions per place.