./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.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-more-buffer-mult2.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-more-buffer-mult2.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-more-buffer-mult2.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 09:21:24,493 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 09:21:24,564 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 09:21:24,569 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 09:21:24,570 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 09:21:24,597 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 09:21:24,598 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 09:21:24,598 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 09:21:24,599 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 09:21:24,602 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 09:21:24,602 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 09:21:24,603 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 09:21:24,603 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 09:21:24,604 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 09:21:24,605 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 09:21:24,605 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 09:21:24,605 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 09:21:24,605 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 09:21:24,606 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 09:21:24,606 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 09:21:24,606 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 09:21:24,606 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 09:21:24,607 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 09:21:24,607 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 09:21:24,607 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 09:21:24,607 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 09:21:24,607 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 09:21:24,608 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 09:21:24,608 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 09:21:24,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 09:21:24,609 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 09:21:24,609 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 09:21:24,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:21:24,610 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 09:21:24,610 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 09:21:24,610 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 09:21:24,610 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 09:21:24,611 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 09:21:24,611 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 09:21:24,611 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 09:21:24,611 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 09:21:24,612 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 09:21:24,612 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 09:21:24,612 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 09:21:24,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 09:21:24,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 09:21:24,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 09:21:24,850 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 09:21:24,850 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 09:21:24,851 INFO L431 ainManager$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-more-buffer-mult2.wvr.yml/witness.yml [2024-02-02 09:21:25,052 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 09:21:25,053 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 09:21:25,053 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.wvr.c [2024-02-02 09:21:26,113 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 09:21:26,261 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 09:21:26,261 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.wvr.c [2024-02-02 09:21:26,282 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a10cd54bc/1282bff1dabd41b894c2960cd0befcf1/FLAG468600135 [2024-02-02 09:21:26,306 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a10cd54bc/1282bff1dabd41b894c2960cd0befcf1 [2024-02-02 09:21:26,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 09:21:26,308 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 09:21:26,309 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 09:21:26,309 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 09:21:26,313 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 09:21:26,313 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:21:25" (1/2) ... [2024-02-02 09:21:26,314 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c18576 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:21:26, skipping insertion in model container [2024-02-02 09:21:26,314 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:21:25" (1/2) ... [2024-02-02 09:21:26,315 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@fa17697 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:21:26, skipping insertion in model container [2024-02-02 09:21:26,315 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:21:26" (2/2) ... [2024-02-02 09:21:26,316 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c18576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:21:26, skipping insertion in model container [2024-02-02 09:21:26,316 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:21:26" (2/2) ... [2024-02-02 09:21:26,316 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 09:21:26,381 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 09:21:26,382 INFO L101 nessWitnessExtractor]: Location invariant before [L128-L128] ((((((((q1 == 0) && (q2 == 0)) && (q1_front == 0)) && (q1_back == 0)) && (q2_front == 0)) && (q2_back == 0)) && (i == 0)) && (j == 0)) && (total == 0) [2024-02-02 09:21:26,383 INFO L101 nessWitnessExtractor]: Location invariant before [L135-L135] (((-2147483647 <= C) && (i == 0)) && (j == 0)) && (total == 0) [2024-02-02 09:21:26,383 INFO L101 nessWitnessExtractor]: Location invariant before [L157-L157] (((q2 == 0) && (i == 0)) && (j == 0)) && (total == 0) [2024-02-02 09:21:26,383 INFO L101 nessWitnessExtractor]: Location invariant before [L138-L138] ((i == 0) && (j == 0)) && (total == 0) [2024-02-02 09:21:26,384 INFO L101 nessWitnessExtractor]: Location invariant before [L55-L55] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,384 INFO L101 nessWitnessExtractor]: Loop invariant at [L51-L61] (unsigned long )_argptr == 0UL [2024-02-02 09:21:26,384 INFO L101 nessWitnessExtractor]: Location invariant before [L130-L130] ((((((q1 == 0) && (q2 == 0)) && (q2_front == 0)) && (q2_back == 0)) && (i == 0)) && (j == 0)) && (total == 0) [2024-02-02 09:21:26,384 INFO L101 nessWitnessExtractor]: Location invariant before [L167-L167] (0 <= i) && (0 <= j) [2024-02-02 09:21:26,384 INFO L101 nessWitnessExtractor]: Location invariant before [L108-L108] (unsigned long )_argptr == 0UL [2024-02-02 09:21:26,384 INFO L101 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-02-02 09:21:26,384 INFO L101 nessWitnessExtractor]: Location invariant before [L133-L133] (((q2 == 0) && (i == 0)) && (j == 0)) && (total == 0) [2024-02-02 09:21:26,385 INFO L101 nessWitnessExtractor]: Location invariant before [L77-L77] (unsigned long )_argptr == 0UL [2024-02-02 09:21:26,385 INFO L101 nessWitnessExtractor]: Location invariant before [L105-L105] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,385 INFO L101 nessWitnessExtractor]: Location invariant before [L75-L75] (((-2147483647 <= q2_back) && (0 <= i)) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,385 INFO L101 nessWitnessExtractor]: Loop invariant at [L89-L98] (unsigned long )_argptr == 0UL [2024-02-02 09:21:26,385 INFO L101 nessWitnessExtractor]: Location invariant before [L63-L63] (unsigned long )_argptr == 0UL [2024-02-02 09:21:26,385 INFO L101 nessWitnessExtractor]: Location invariant before [L125-L125] (((((((((((q1 == 0) && (q2 == 0)) && (q1_front == 0)) && (q1_back == 0)) && (q2_front == 0)) && (q2_back == 0)) && (i == 0)) && (j == 0)) && (n1 == 0)) && (n2 == 0)) && (N == 0)) && (total == 0) [2024-02-02 09:21:26,385 INFO L101 nessWitnessExtractor]: Location invariant before [L113-L113] (unsigned long )_argptr == 0UL [2024-02-02 09:21:26,386 INFO L101 nessWitnessExtractor]: Location invariant before [L91-L91] ((((-2147483647 <= q1_back) && (0 <= i)) && (0 <= j)) && (q1_front <= 2147483646)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,386 INFO L101 nessWitnessExtractor]: Location invariant before [L59-L59] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,386 INFO L101 nessWitnessExtractor]: Location invariant before [L74-L74] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,386 INFO L101 nessWitnessExtractor]: Location invariant before [L161-L161] ((((0 <= i) && (q2 == 0)) && (i == 0)) && (j == 0)) && (total == 0) [2024-02-02 09:21:26,386 INFO L101 nessWitnessExtractor]: Location invariant before [L88-L88] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,387 INFO L101 nessWitnessExtractor]: Location invariant before [L132-L132] ((((q1 == 0) && (q2 == 0)) && (i == 0)) && (j == 0)) && (total == 0) [2024-02-02 09:21:26,387 INFO L101 nessWitnessExtractor]: Location invariant before [L52-L52] (unsigned long )_argptr == 0UL [2024-02-02 09:21:26,387 INFO L101 nessWitnessExtractor]: Location invariant before [L96-L96] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,387 INFO L101 nessWitnessExtractor]: Location invariant before [L106-L106] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,387 INFO L101 nessWitnessExtractor]: Location invariant before [L53-L53] (((0 <= q1_back) && (0 <= i)) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,387 INFO L101 nessWitnessExtractor]: Loop invariant at [L158-L160] ((((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 09:21:26,387 INFO L101 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-02-02 09:21:26,388 INFO L101 nessWitnessExtractor]: Location invariant before [L60-L60] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,388 INFO L101 nessWitnessExtractor]: Location invariant before [L155-L155] (((q2 == 0) && (i == 0)) && (j == 0)) && (total == 0) [2024-02-02 09:21:26,388 INFO L101 nessWitnessExtractor]: Location invariant before [L109-L109] ((((-2147483647 <= q2_back) && (0 <= i)) && (0 <= j)) && (q2_front <= 2147483646)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,388 INFO L101 nessWitnessExtractor]: Location invariant before [L129-L129] (((((((q1 == 0) && (q2 == 0)) && (q1_back == 0)) && (q2_front == 0)) && (q2_back == 0)) && (i == 0)) && (j == 0)) && (total == 0) [2024-02-02 09:21:26,388 INFO L101 nessWitnessExtractor]: Location invariant before [L78-L78] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,388 INFO L101 nessWitnessExtractor]: Location invariant before [L111-L111] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,389 INFO L101 nessWitnessExtractor]: Location invariant before [L79-L79] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,389 INFO L101 nessWitnessExtractor]: Location invariant before [L127-L127] (((((((((q1 == 0) && (q2 == 0)) && (q1_front == 0)) && (q1_back == 0)) && (q2_front == 0)) && (q2_back == 0)) && (i == 0)) && (j == 0)) && (n2 == 0)) && (total == 0) [2024-02-02 09:21:26,390 INFO L101 nessWitnessExtractor]: Location invariant before [L68-L68] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,390 INFO L101 nessWitnessExtractor]: Location invariant before [L93-L93] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,390 INFO L101 nessWitnessExtractor]: Location invariant before [L57-L57] (((-2147483647 <= q1_back) && (0 <= j)) && (1 <= i)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,390 INFO L101 nessWitnessExtractor]: Location invariant before [L72-L72] (((0 <= q2_back) && (0 <= i)) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,391 INFO L101 nessWitnessExtractor]: Location invariant before [L118-L118] (unsigned long )_argptr == 0UL [2024-02-02 09:21:26,391 INFO L101 nessWitnessExtractor]: Location invariant before [L71-L71] (unsigned long )_argptr == 0UL [2024-02-02 09:21:26,391 INFO L101 nessWitnessExtractor]: Location invariant before [L54-L54] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,391 INFO L101 nessWitnessExtractor]: Loop invariant at [L107-L116] (unsigned long )_argptr == 0UL [2024-02-02 09:21:26,391 INFO L101 nessWitnessExtractor]: Location invariant before [L114-L114] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,391 INFO L101 nessWitnessExtractor]: Location invariant before [L166-L166] (((0 <= i) && (0 <= j)) && (1 <= b)) && (b != 0) [2024-02-02 09:21:26,392 INFO L101 nessWitnessExtractor]: Location invariant before [L124-L124] ((((((((((((q1 == 0) && (q2 == 0)) && (q1_front == 0)) && (q1_back == 0)) && (q2_front == 0)) && (q2_back == 0)) && (i == 0)) && (j == 0)) && (n1 == 0)) && (n2 == 0)) && (N == 0)) && (C == 0)) && (total == 0) [2024-02-02 09:21:26,392 INFO L101 nessWitnessExtractor]: Location invariant before [L115-L115] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,392 INFO L101 nessWitnessExtractor]: Location invariant before [L112-L112] (((-2147483647 <= q2_front) && (0 <= i)) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,392 INFO L101 nessWitnessExtractor]: Location invariant before [L95-L95] (unsigned long )_argptr == 0UL [2024-02-02 09:21:26,392 INFO L101 nessWitnessExtractor]: Location invariant before [L90-L90] (unsigned long )_argptr == 0UL [2024-02-02 09:21:26,393 INFO L101 nessWitnessExtractor]: Location invariant before [L76-L76] (((-2147483647 <= q2_back) && (0 <= i)) && (1 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,393 INFO L101 nessWitnessExtractor]: Location invariant before [L69-L69] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,393 INFO L101 nessWitnessExtractor]: Location invariant before [L49-L49] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,393 INFO L101 nessWitnessExtractor]: Location invariant before [L131-L131] (((((q1 == 0) && (q2 == 0)) && (q2_back == 0)) && (i == 0)) && (j == 0)) && (total == 0) [2024-02-02 09:21:26,394 INFO L101 nessWitnessExtractor]: Location invariant before [L56-L56] (((-2147483647 <= q1_back) && (0 <= i)) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,394 INFO L101 nessWitnessExtractor]: Loop invariant at [L70-L80] (unsigned long )_argptr == 0UL [2024-02-02 09:21:26,394 INFO L101 nessWitnessExtractor]: Location invariant before [L67-L67] (unsigned long )_argptr == 0UL [2024-02-02 09:21:26,394 INFO L101 nessWitnessExtractor]: Location invariant before [L165-L165] (((0 <= i) && (0 <= j)) && (b <= -1)) && (b != 0) [2024-02-02 09:21:26,395 INFO L101 nessWitnessExtractor]: Location invariant before [L110-L110] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,395 INFO L101 nessWitnessExtractor]: Location invariant before [L73-L73] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,395 INFO L101 nessWitnessExtractor]: Location invariant before [L154-L154] (((q2 == 0) && (i == 0)) && (j == 0)) && (total == 0) [2024-02-02 09:21:26,395 INFO L101 nessWitnessExtractor]: Location invariant before [L100-L100] (unsigned long )_argptr == 0UL [2024-02-02 09:21:26,395 INFO L101 nessWitnessExtractor]: Location invariant before [L86-L86] (unsigned long )_argptr == 0UL [2024-02-02 09:21:26,395 INFO L101 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-02-02 09:21:26,395 INFO L101 nessWitnessExtractor]: Location invariant before [L50-L50] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,395 INFO L101 nessWitnessExtractor]: Location invariant before [L104-L104] (unsigned long )_argptr == 0UL [2024-02-02 09:21:26,396 INFO L101 nessWitnessExtractor]: Location invariant before [L92-L92] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,396 INFO L101 nessWitnessExtractor]: Location invariant before [L87-L87] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,396 INFO L101 nessWitnessExtractor]: Location invariant before [L22-L25] (((q2 == 0) && (i == 0)) && (j == 0)) && (total == 0) [2024-02-02 09:21:26,396 INFO L101 nessWitnessExtractor]: Location invariant before [L126-L126] ((((((((((q1 == 0) && (q2 == 0)) && (q1_front == 0)) && (q1_back == 0)) && (q2_front == 0)) && (q2_back == 0)) && (i == 0)) && (j == 0)) && (n1 == 0)) && (n2 == 0)) && (total == 0) [2024-02-02 09:21:26,396 INFO L101 nessWitnessExtractor]: Location invariant before [L159-L159] (((((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 09:21:26,396 INFO L101 nessWitnessExtractor]: Location invariant before [L97-L97] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,396 INFO L101 nessWitnessExtractor]: Location invariant before [L94-L94] (((-2147483647 <= q1_front) && (0 <= i)) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:21:26,423 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-02 09:21:26,614 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-more-buffer-mult2.wvr.c[4151,4164] [2024-02-02 09:21:26,633 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:21:26,655 INFO L202 MainTranslator]: Completed pre-run [2024-02-02 09:21:26,672 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 09:21:26,774 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-more-buffer-mult2.wvr.c[4151,4164] 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 09:21:26,783 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:21:26,795 INFO L206 MainTranslator]: Completed translation [2024-02-02 09:21:26,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:21:26 WrapperNode [2024-02-02 09:21:26,796 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 09:21:26,797 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 09:21:26,797 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 09:21:26,797 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 09:21:26,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:21:26" (1/1) ... [2024-02-02 09:21:26,818 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:21:26" (1/1) ... [2024-02-02 09:21:26,849 INFO L138 Inliner]: procedures = 27, calls = 76, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 406 [2024-02-02 09:21:26,849 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 09:21:26,850 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 09:21:26,850 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 09:21:26,850 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 09:21:26,859 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:21:26" (1/1) ... [2024-02-02 09:21:26,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:21:26" (1/1) ... [2024-02-02 09:21:26,864 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:21:26" (1/1) ... [2024-02-02 09:21:26,884 INFO L175 MemorySlicer]: Split 16 memory accesses to 6 slices as follows [2, 2, 2, 2, 6, 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, 1, 2, 1]. [2024-02-02 09:21:26,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:21:26" (1/1) ... [2024-02-02 09:21:26,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:21:26" (1/1) ... [2024-02-02 09:21:26,901 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:21:26" (1/1) ... [2024-02-02 09:21:26,915 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:21:26" (1/1) ... [2024-02-02 09:21:26,927 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:21:26" (1/1) ... [2024-02-02 09:21:26,929 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:21:26" (1/1) ... [2024-02-02 09:21:26,932 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 09:21:26,933 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 09:21:26,937 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 09:21:26,937 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 09:21:26,938 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:21:26" (1/1) ... [2024-02-02 09:21:26,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:21:26,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 09:21:26,976 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 09:21:27,016 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 09:21:27,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 09:21:27,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 09:21:27,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 09:21:27,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 09:21:27,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 09:21:27,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-02 09:21:27,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-02 09:21:27,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-02-02 09:21:27,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-02 09:21:27,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-02 09:21:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-02 09:21:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-02 09:21:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-02 09:21:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-02-02 09:21:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-02 09:21:27,065 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-02 09:21:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-02 09:21:27,065 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-02 09:21:27,066 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-02-02 09:21:27,066 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-02-02 09:21:27,066 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-02-02 09:21:27,066 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-02-02 09:21:27,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 09:21:27,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 09:21:27,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 09:21:27,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-02 09:21:27,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-02 09:21:27,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-02-02 09:21:27,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-02 09:21:27,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-02 09:21:27,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-02-02 09:21:27,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 09:21:27,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 09:21:27,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 09:21:27,069 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 09:21:27,192 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 09:21:27,194 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 09:21:27,834 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 09:21:27,835 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 09:21:28,205 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 09:21:28,206 INFO L320 CfgBuilder]: Removed 6 assume(true) statements. [2024-02-02 09:21:28,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:21:28 BoogieIcfgContainer [2024-02-02 09:21:28,208 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 09:21:28,210 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 09:21:28,210 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 09:21:28,212 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 09:21:28,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:21:25" (1/4) ... [2024-02-02 09:21:28,213 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696980d3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:21:28, skipping insertion in model container [2024-02-02 09:21:28,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:21:26" (2/4) ... [2024-02-02 09:21:28,214 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696980d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:21:28, skipping insertion in model container [2024-02-02 09:21:28,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:21:26" (3/4) ... [2024-02-02 09:21:28,215 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696980d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:21:28, skipping insertion in model container [2024-02-02 09:21:28,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:21:28" (4/4) ... [2024-02-02 09:21:28,216 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-mult2.wvr.c [2024-02-02 09:21:28,230 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 09:21:28,231 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 91 error locations. [2024-02-02 09:21:28,231 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 09:21:28,388 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-02-02 09:21:28,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 191 transitions, 410 flow [2024-02-02 09:21:28,489 INFO L124 PetriNetUnfolderBase]: 6/187 cut-off events. [2024-02-02 09:21:28,489 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-02-02 09:21:28,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 187 events. 6/187 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 681 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 152. Up to 2 conditions per place. [2024-02-02 09:21:28,495 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 191 transitions, 410 flow [2024-02-02 09:21:28,503 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 193 places, 186 transitions, 396 flow [2024-02-02 09:21:28,515 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:21:28,522 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;@5bab5ea4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:21:28,524 INFO L358 AbstractCegarLoop]: Starting to check reachability of 159 error locations. [2024-02-02 09:21:28,526 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:21:28,527 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-02 09:21:28,527 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:21:28,531 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:21:28,532 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-02 09:21:28,532 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 156 more)] === [2024-02-02 09:21:28,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:21:28,566 INFO L85 PathProgramCache]: Analyzing trace with hash 37919, now seen corresponding path program 1 times [2024-02-02 09:21:28,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:21:28,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80966665] [2024-02-02 09:21:28,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:21:28,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:21:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:21:28,961 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 09:21:28,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:21:28,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80966665] [2024-02-02 09:21:28,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80966665] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:21:28,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:21:28,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:21:28,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291281717] [2024-02-02 09:21:28,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:21:28,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:21:28,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:21:28,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:21:28,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:21:29,058 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 191 [2024-02-02 09:21:29,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 186 transitions, 396 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 09:21:29,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:21:29,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 191 [2024-02-02 09:21:29,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:21:34,765 INFO L124 PetriNetUnfolderBase]: 38424/56337 cut-off events. [2024-02-02 09:21:34,765 INFO L125 PetriNetUnfolderBase]: For 1235/1235 co-relation queries the response was YES. [2024-02-02 09:21:35,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110069 conditions, 56337 events. 38424/56337 cut-off events. For 1235/1235 co-relation queries the response was YES. Maximal size of possible extension queue 3656. Compared 486750 event pairs, 38413 based on Foata normal form. 0/34546 useless extension candidates. Maximal degree in co-relation 100157. Up to 51599 conditions per place. [2024-02-02 09:21:35,347 INFO L140 encePairwiseOnDemand]: 164/191 looper letters, 88 selfloop transitions, 2 changer transitions 0/147 dead transitions. [2024-02-02 09:21:35,347 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 147 transitions, 498 flow [2024-02-02 09:21:35,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:21:35,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:21:35,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2024-02-02 09:21:35,364 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5619546247818499 [2024-02-02 09:21:35,366 INFO L175 Difference]: Start difference. First operand has 193 places, 186 transitions, 396 flow. Second operand 3 states and 322 transitions. [2024-02-02 09:21:35,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 147 transitions, 498 flow [2024-02-02 09:21:35,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 147 transitions, 482 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-02-02 09:21:35,712 INFO L231 Difference]: Finished difference. Result has 150 places, 147 transitions, 306 flow [2024-02-02 09:21:35,714 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=306, PETRI_PLACES=150, PETRI_TRANSITIONS=147} [2024-02-02 09:21:35,716 INFO L281 CegarLoopForPetriNet]: 193 programPoint places, -43 predicate places. [2024-02-02 09:21:35,716 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 147 transitions, 306 flow [2024-02-02 09:21:35,717 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 09:21:35,717 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:21:35,717 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-02-02 09:21:35,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 09:21:35,717 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 156 more)] === [2024-02-02 09:21:35,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:21:35,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1176768, now seen corresponding path program 1 times [2024-02-02 09:21:35,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:21:35,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910380661] [2024-02-02 09:21:35,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:21:35,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:21:35,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:21:35,850 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 09:21:35,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:21:35,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910380661] [2024-02-02 09:21:35,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910380661] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:21:35,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:21:35,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:21:35,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237786048] [2024-02-02 09:21:35,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:21:35,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:21:35,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:21:35,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:21:35,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:21:35,891 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 191 [2024-02-02 09:21:35,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 147 transitions, 306 flow. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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 09:21:35,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:21:35,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 191 [2024-02-02 09:21:35,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:21:40,628 INFO L124 PetriNetUnfolderBase]: 38424/56336 cut-off events. [2024-02-02 09:21:40,629 INFO L125 PetriNetUnfolderBase]: For 184/184 co-relation queries the response was YES. [2024-02-02 09:21:40,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108677 conditions, 56336 events. 38424/56336 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 3656. Compared 486355 event pairs, 38413 based on Foata normal form. 0/34547 useless extension candidates. Maximal degree in co-relation 108668. Up to 51596 conditions per place. [2024-02-02 09:21:41,141 INFO L140 encePairwiseOnDemand]: 188/191 looper letters, 86 selfloop transitions, 2 changer transitions 0/146 dead transitions. [2024-02-02 09:21:41,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 146 transitions, 480 flow [2024-02-02 09:21:41,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:21:41,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:21:41,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 302 transitions. [2024-02-02 09:21:41,158 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5270506108202443 [2024-02-02 09:21:41,158 INFO L175 Difference]: Start difference. First operand has 150 places, 147 transitions, 306 flow. Second operand 3 states and 302 transitions. [2024-02-02 09:21:41,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 146 transitions, 480 flow [2024-02-02 09:21:41,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 146 transitions, 476 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:21:41,160 INFO L231 Difference]: Finished difference. Result has 149 places, 146 transitions, 304 flow [2024-02-02 09:21:41,160 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=304, PETRI_PLACES=149, PETRI_TRANSITIONS=146} [2024-02-02 09:21:41,161 INFO L281 CegarLoopForPetriNet]: 193 programPoint places, -44 predicate places. [2024-02-02 09:21:41,161 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 146 transitions, 304 flow [2024-02-02 09:21:41,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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 09:21:41,161 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:21:41,161 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-02 09:21:41,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-02 09:21:41,161 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 156 more)] === [2024-02-02 09:21:41,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:21:41,162 INFO L85 PathProgramCache]: Analyzing trace with hash 36481044, now seen corresponding path program 1 times [2024-02-02 09:21:41,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:21:41,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843777964] [2024-02-02 09:21:41,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:21:41,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:21:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:21:41,299 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 09:21:41,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:21:41,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843777964] [2024-02-02 09:21:41,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843777964] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:21:41,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:21:41,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:21:41,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038980161] [2024-02-02 09:21:41,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:21:41,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:21:41,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:21:41,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:21:41,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:21:41,348 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 191 [2024-02-02 09:21:41,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 146 transitions, 304 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 09:21:41,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:21:41,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 191 [2024-02-02 09:21:41,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:21:46,031 INFO L124 PetriNetUnfolderBase]: 38424/56335 cut-off events. [2024-02-02 09:21:46,031 INFO L125 PetriNetUnfolderBase]: For 184/184 co-relation queries the response was YES. [2024-02-02 09:21:46,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108675 conditions, 56335 events. 38424/56335 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 3669. Compared 486694 event pairs, 38413 based on Foata normal form. 0/34547 useless extension candidates. Maximal degree in co-relation 108664. Up to 51594 conditions per place. [2024-02-02 09:21:46,372 INFO L140 encePairwiseOnDemand]: 188/191 looper letters, 85 selfloop transitions, 2 changer transitions 0/145 dead transitions. [2024-02-02 09:21:46,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 145 transitions, 476 flow [2024-02-02 09:21:46,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:21:46,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:21:46,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2024-02-02 09:21:46,374 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5305410122164049 [2024-02-02 09:21:46,374 INFO L175 Difference]: Start difference. First operand has 149 places, 146 transitions, 304 flow. Second operand 3 states and 304 transitions. [2024-02-02 09:21:46,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 145 transitions, 476 flow [2024-02-02 09:21:46,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 145 transitions, 472 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:21:46,380 INFO L231 Difference]: Finished difference. Result has 148 places, 145 transitions, 302 flow [2024-02-02 09:21:46,380 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=302, PETRI_PLACES=148, PETRI_TRANSITIONS=145} [2024-02-02 09:21:46,381 INFO L281 CegarLoopForPetriNet]: 193 programPoint places, -45 predicate places. [2024-02-02 09:21:46,381 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 145 transitions, 302 flow [2024-02-02 09:21:46,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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 09:21:46,381 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:21:46,381 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-02 09:21:46,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-02 09:21:46,381 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 156 more)] === [2024-02-02 09:21:46,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:21:46,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1130913670, now seen corresponding path program 1 times [2024-02-02 09:21:46,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:21:46,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375735680] [2024-02-02 09:21:46,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:21:46,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:21:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:21:46,461 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 09:21:46,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:21:46,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375735680] [2024-02-02 09:21:46,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375735680] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:21:46,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:21:46,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:21:46,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459373867] [2024-02-02 09:21:46,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:21:46,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:21:46,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:21:46,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:21:46,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:21:46,506 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 191 [2024-02-02 09:21:46,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 145 transitions, 302 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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 09:21:46,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:21:46,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 191 [2024-02-02 09:21:46,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:21:50,747 INFO L124 PetriNetUnfolderBase]: 38424/56334 cut-off events. [2024-02-02 09:21:50,747 INFO L125 PetriNetUnfolderBase]: For 184/184 co-relation queries the response was YES. [2024-02-02 09:21:50,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108673 conditions, 56334 events. 38424/56334 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 3669. Compared 486290 event pairs, 38413 based on Foata normal form. 0/34547 useless extension candidates. Maximal degree in co-relation 108660. Up to 51592 conditions per place. [2024-02-02 09:21:51,113 INFO L140 encePairwiseOnDemand]: 188/191 looper letters, 84 selfloop transitions, 2 changer transitions 0/144 dead transitions. [2024-02-02 09:21:51,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 144 transitions, 472 flow [2024-02-02 09:21:51,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:21:51,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:21:51,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2024-02-02 09:21:51,115 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5340314136125655 [2024-02-02 09:21:51,115 INFO L175 Difference]: Start difference. First operand has 148 places, 145 transitions, 302 flow. Second operand 3 states and 306 transitions. [2024-02-02 09:21:51,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 144 transitions, 472 flow [2024-02-02 09:21:51,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 144 transitions, 468 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:21:51,117 INFO L231 Difference]: Finished difference. Result has 147 places, 144 transitions, 300 flow [2024-02-02 09:21:51,117 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, 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} [2024-02-02 09:21:51,118 INFO L281 CegarLoopForPetriNet]: 193 programPoint places, -46 predicate places. [2024-02-02 09:21:51,118 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 144 transitions, 300 flow [2024-02-02 09:21:51,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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 09:21:51,119 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:21:51,119 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-02 09:21:51,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-02 09:21:51,119 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 156 more)] === [2024-02-02 09:21:51,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:21:51,119 INFO L85 PathProgramCache]: Analyzing trace with hash 698586615, now seen corresponding path program 1 times [2024-02-02 09:21:51,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:21:51,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484705252] [2024-02-02 09:21:51,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:21:51,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:21:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:21:51,191 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 09:21:51,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:21:51,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484705252] [2024-02-02 09:21:51,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484705252] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:21:51,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:21:51,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:21:51,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894184719] [2024-02-02 09:21:51,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:21:51,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:21:51,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:21:51,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:21:51,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:21:51,237 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 191 [2024-02-02 09:21:51,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 144 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 09:21:51,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:21:51,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 191 [2024-02-02 09:21:51,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:21:55,943 INFO L124 PetriNetUnfolderBase]: 38424/56333 cut-off events. [2024-02-02 09:21:55,943 INFO L125 PetriNetUnfolderBase]: For 184/184 co-relation queries the response was YES. [2024-02-02 09:21:56,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108671 conditions, 56333 events. 38424/56333 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 3669. Compared 486872 event pairs, 38413 based on Foata normal form. 0/34547 useless extension candidates. Maximal degree in co-relation 108656. Up to 51590 conditions per place. [2024-02-02 09:21:56,273 INFO L140 encePairwiseOnDemand]: 188/191 looper letters, 83 selfloop transitions, 2 changer transitions 0/143 dead transitions. [2024-02-02 09:21:56,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 143 transitions, 468 flow [2024-02-02 09:21:56,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:21:56,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:21:56,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 308 transitions. [2024-02-02 09:21:56,275 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.537521815008726 [2024-02-02 09:21:56,275 INFO L175 Difference]: Start difference. First operand has 147 places, 144 transitions, 300 flow. Second operand 3 states and 308 transitions. [2024-02-02 09:21:56,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 143 transitions, 468 flow [2024-02-02 09:21:56,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 143 transitions, 464 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:21:56,277 INFO L231 Difference]: Finished difference. Result has 146 places, 143 transitions, 298 flow [2024-02-02 09:21:56,278 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=146, PETRI_TRANSITIONS=143} [2024-02-02 09:21:56,278 INFO L281 CegarLoopForPetriNet]: 193 programPoint places, -47 predicate places. [2024-02-02 09:21:56,278 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 143 transitions, 298 flow [2024-02-02 09:21:56,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 09:21:56,279 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:21:56,279 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:21:56,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-02 09:21:56,279 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 156 more)] === [2024-02-02 09:21:56,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:21:56,279 INFO L85 PathProgramCache]: Analyzing trace with hash 181349883, now seen corresponding path program 1 times [2024-02-02 09:21:56,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:21:56,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549934895] [2024-02-02 09:21:56,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:21:56,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:21:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:21:56,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:21:56,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:21:56,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549934895] [2024-02-02 09:21:56,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549934895] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:21:56,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:21:56,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:21:56,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13934627] [2024-02-02 09:21:56,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:21:56,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:21:56,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:21:56,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:21:56,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:21:56,381 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 191 [2024-02-02 09:21:56,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 143 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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 09:21:56,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:21:56,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 191 [2024-02-02 09:21:56,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand