./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 3d25acf6 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-3d25acf-m [2024-01-30 14:25:10,439 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-30 14:25:10,523 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-30 14:25:10,529 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-30 14:25:10,529 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-30 14:25:10,558 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-30 14:25:10,559 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-30 14:25:10,560 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-30 14:25:10,560 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-30 14:25:10,564 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-30 14:25:10,565 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-30 14:25:10,565 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-30 14:25:10,566 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-30 14:25:10,567 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-30 14:25:10,567 INFO L153 SettingsManager]: * Use SBE=true [2024-01-30 14:25:10,568 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-30 14:25:10,568 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-30 14:25:10,568 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-30 14:25:10,568 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-30 14:25:10,569 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-30 14:25:10,569 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-30 14:25:10,569 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-30 14:25:10,570 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-30 14:25:10,570 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-30 14:25:10,570 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-30 14:25:10,570 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-30 14:25:10,571 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-30 14:25:10,571 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-30 14:25:10,571 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-30 14:25:10,572 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-30 14:25:10,573 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-30 14:25:10,573 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-30 14:25:10,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:25:10,573 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-30 14:25:10,573 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-30 14:25:10,574 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-30 14:25:10,574 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-30 14:25:10,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-30 14:25:10,574 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-30 14:25:10,574 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-30 14:25:10,575 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-30 14:25:10,575 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-30 14:25:10,575 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-30 14:25:10,575 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-30 14:25:10,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-30 14:25:10,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-30 14:25:10,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-30 14:25:10,868 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-30 14:25:10,868 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-30 14:25:10,869 INFO L431 ainManager$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 [2024-01-30 14:25:11,051 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-30 14:25:11,052 INFO L274 PluginConnector]: CDTParser initialized [2024-01-30 14:25:11,052 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.wvr.c [2024-01-30 14:25:12,302 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-30 14:25:12,518 INFO L384 CDTParser]: Found 1 translation units. [2024-01-30 14:25:12,519 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.wvr.c [2024-01-30 14:25:12,530 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e2193ce8/684e125801934c3689e54c1272108a8d/FLAGd4fceec0c [2024-01-30 14:25:12,552 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e2193ce8/684e125801934c3689e54c1272108a8d [2024-01-30 14:25:12,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-30 14:25:12,554 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-30 14:25:12,557 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-30 14:25:12,557 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-30 14:25:12,561 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-30 14:25:12,562 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:25:11" (1/2) ... [2024-01-30 14:25:12,563 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76b2776a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:25:12, skipping insertion in model container [2024-01-30 14:25:12,563 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:25:11" (1/2) ... [2024-01-30 14:25:12,565 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3c8acac7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:25:12, skipping insertion in model container [2024-01-30 14:25:12,565 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:25:12" (2/2) ... [2024-01-30 14:25:12,566 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76b2776a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:12, skipping insertion in model container [2024-01-30 14:25:12,566 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:25:12" (2/2) ... [2024-01-30 14:25:12,566 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-30 14:25:12,666 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-30 14:25:12,668 INFO L98 nessWitnessExtractor]: Location invariant before [L96-L96] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,668 INFO L98 nessWitnessExtractor]: Location invariant before [L105-L105] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,668 INFO L98 nessWitnessExtractor]: Location invariant before [L106-L106] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,669 INFO L98 nessWitnessExtractor]: Location invariant before [L113-L113] (unsigned long )_argptr == 0UL [2024-01-30 14:25:12,669 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,669 INFO L98 nessWitnessExtractor]: Location invariant before [L135-L135] (((-2147483647 <= C) && (i == 0)) && (j == 0)) && (total == 0) [2024-01-30 14:25:12,670 INFO L98 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) [2024-01-30 14:25:12,670 INFO L98 nessWitnessExtractor]: Location invariant before [L94-L94] (((-2147483647 <= q1_front) && (0 <= i)) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,670 INFO L98 nessWitnessExtractor]: Location invariant before [L154-L154] (((q2 == 0) && (i == 0)) && (j == 0)) && (total == 0) [2024-01-30 14:25:12,670 INFO L98 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) [2024-01-30 14:25:12,670 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (unsigned long )_argptr == 0UL [2024-01-30 14:25:12,670 INFO L98 nessWitnessExtractor]: Location invariant before [L93-L93] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,671 INFO L98 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-01-30 14:25:12,671 INFO L98 nessWitnessExtractor]: Location invariant before [L76-L76] (((-2147483647 <= q2_back) && (0 <= i)) && (1 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,671 INFO L98 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) [2024-01-30 14:25:12,671 INFO L98 nessWitnessExtractor]: Location invariant before [L108-L108] (unsigned long )_argptr == 0UL [2024-01-30 14:25:12,671 INFO L98 nessWitnessExtractor]: Loop invariant at [L107-L116] (unsigned long )_argptr == 0UL [2024-01-30 14:25:12,671 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,672 INFO L98 nessWitnessExtractor]: Location invariant before [L104-L104] (unsigned long )_argptr == 0UL [2024-01-30 14:25:12,672 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,672 INFO L98 nessWitnessExtractor]: Location invariant before [L110-L110] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,672 INFO L98 nessWitnessExtractor]: Location invariant before [L22-L25] (((q2 == 0) && (i == 0)) && (j == 0)) && (total == 0) [2024-01-30 14:25:12,673 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] (unsigned long )_argptr == 0UL [2024-01-30 14:25:12,673 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-30 14:25:12,673 INFO L98 nessWitnessExtractor]: Location invariant before [L60-L60] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,673 INFO L98 nessWitnessExtractor]: Loop invariant at [L51-L61] (unsigned long )_argptr == 0UL [2024-01-30 14:25:12,673 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,673 INFO L98 nessWitnessExtractor]: Location invariant before [L75-L75] (((-2147483647 <= q2_back) && (0 <= i)) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,674 INFO L98 nessWitnessExtractor]: Location invariant before [L111-L111] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,674 INFO L98 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)) [2024-01-30 14:25:12,674 INFO L98 nessWitnessExtractor]: Location invariant before [L155-L155] (((q2 == 0) && (i == 0)) && (j == 0)) && (total == 0) [2024-01-30 14:25:12,674 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] (unsigned long )_argptr == 0UL [2024-01-30 14:25:12,674 INFO L98 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) [2024-01-30 14:25:12,674 INFO L98 nessWitnessExtractor]: Location invariant before [L138-L138] ((i == 0) && (j == 0)) && (total == 0) [2024-01-30 14:25:12,674 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] (unsigned long )_argptr == 0UL [2024-01-30 14:25:12,675 INFO L98 nessWitnessExtractor]: Location invariant before [L130-L130] ((((((q1 == 0) && (q2 == 0)) && (q2_front == 0)) && (q2_back == 0)) && (i == 0)) && (j == 0)) && (total == 0) [2024-01-30 14:25:12,675 INFO L98 nessWitnessExtractor]: Loop invariant at [L70-L80] (unsigned long )_argptr == 0UL [2024-01-30 14:25:12,675 INFO L98 nessWitnessExtractor]: Location invariant before [L167-L167] (0 <= i) && (0 <= j) [2024-01-30 14:25:12,676 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,676 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] (unsigned long )_argptr == 0UL [2024-01-30 14:25:12,677 INFO L98 nessWitnessExtractor]: Location invariant before [L157-L157] (((q2 == 0) && (i == 0)) && (j == 0)) && (total == 0) [2024-01-30 14:25:12,677 INFO L98 nessWitnessExtractor]: Location invariant before [L72-L72] (((0 <= q2_back) && (0 <= i)) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,677 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,677 INFO L98 nessWitnessExtractor]: Location invariant before [L114-L114] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,677 INFO L98 nessWitnessExtractor]: Location invariant before [L115-L115] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,677 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,678 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] (((-2147483647 <= q1_back) && (0 <= j)) && (1 <= i)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,678 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] ((((-2147483647 <= q1_back) && (0 <= i)) && (0 <= j)) && (q1_front <= 2147483646)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,678 INFO L98 nessWitnessExtractor]: Loop invariant at [L89-L98] (unsigned long )_argptr == 0UL [2024-01-30 14:25:12,678 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,678 INFO L98 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)) [2024-01-30 14:25:12,679 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] (unsigned long )_argptr == 0UL [2024-01-30 14:25:12,679 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] (unsigned long )_argptr == 0UL [2024-01-30 14:25:12,679 INFO L98 nessWitnessExtractor]: Location invariant before [L49-L49] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,679 INFO L98 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) [2024-01-30 14:25:12,680 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,680 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-01-30 14:25:12,681 INFO L98 nessWitnessExtractor]: Location invariant before [L133-L133] (((q2 == 0) && (i == 0)) && (j == 0)) && (total == 0) [2024-01-30 14:25:12,681 INFO L98 nessWitnessExtractor]: Location invariant before [L95-L95] (unsigned long )_argptr == 0UL [2024-01-30 14:25:12,681 INFO L98 nessWitnessExtractor]: Location invariant before [L59-L59] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,681 INFO L98 nessWitnessExtractor]: Location invariant before [L166-L166] (((0 <= i) && (0 <= j)) && (1 <= b)) && (b != 0) [2024-01-30 14:25:12,681 INFO L98 nessWitnessExtractor]: Location invariant before [L118-L118] (unsigned long )_argptr == 0UL [2024-01-30 14:25:12,681 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,682 INFO L98 nessWitnessExtractor]: Location invariant before [L132-L132] ((((q1 == 0) && (q2 == 0)) && (i == 0)) && (j == 0)) && (total == 0) [2024-01-30 14:25:12,682 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] (unsigned long )_argptr == 0UL [2024-01-30 14:25:12,682 INFO L98 nessWitnessExtractor]: Location invariant before [L112-L112] (((-2147483647 <= q2_front) && (0 <= i)) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,682 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (((0 <= q1_back) && (0 <= i)) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,682 INFO L98 nessWitnessExtractor]: Location invariant before [L165-L165] (((0 <= i) && (0 <= j)) && (b <= -1)) && (b != 0) [2024-01-30 14:25:12,682 INFO L98 nessWitnessExtractor]: Location invariant before [L131-L131] (((((q1 == 0) && (q2 == 0)) && (q2_back == 0)) && (i == 0)) && (j == 0)) && (total == 0) [2024-01-30 14:25:12,682 INFO L98 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) [2024-01-30 14:25:12,683 INFO L98 nessWitnessExtractor]: Location invariant before [L161-L161] ((((0 <= i) && (q2 == 0)) && (i == 0)) && (j == 0)) && (total == 0) [2024-01-30 14:25:12,683 INFO L98 nessWitnessExtractor]: Location invariant before [L78-L78] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,683 INFO L98 nessWitnessExtractor]: Location invariant before [L87-L87] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,683 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (((-2147483647 <= q1_back) && (0 <= i)) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,683 INFO L98 nessWitnessExtractor]: Location invariant before [L109-L109] ((((-2147483647 <= q2_back) && (0 <= i)) && (0 <= j)) && (q2_front <= 2147483646)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,683 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] ((0 <= i) && (0 <= j)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:12,713 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-30 14:25:12,877 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] [2024-01-30 14:25:12,887 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:25:12,894 INFO L202 MainTranslator]: Completed pre-run [2024-01-30 14:25:12,905 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 [2024-01-30 14:25:13,088 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 [2024-01-30 14:25:13,140 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:25:13,154 INFO L206 MainTranslator]: Completed translation [2024-01-30 14:25:13,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:13 WrapperNode [2024-01-30 14:25:13,155 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-30 14:25:13,156 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-30 14:25:13,157 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-30 14:25:13,157 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-30 14:25:13,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:13" (1/1) ... [2024-01-30 14:25:13,175 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:13" (1/1) ... [2024-01-30 14:25:13,211 INFO L138 Inliner]: procedures = 27, calls = 76, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 406 [2024-01-30 14:25:13,212 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-30 14:25:13,213 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-30 14:25:13,213 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-30 14:25:13,213 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-30 14:25:13,226 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:13" (1/1) ... [2024-01-30 14:25:13,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:13" (1/1) ... [2024-01-30 14:25:13,237 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:13" (1/1) ... [2024-01-30 14:25:13,271 INFO L175 MemorySlicer]: Split 16 memory accesses to 6 slices as follows [2, 6, 2, 2, 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, 2, 1, 1, 1, 1]. [2024-01-30 14:25:13,278 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:13" (1/1) ... [2024-01-30 14:25:13,278 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:13" (1/1) ... [2024-01-30 14:25:13,295 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:13" (1/1) ... [2024-01-30 14:25:13,307 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:13" (1/1) ... [2024-01-30 14:25:13,321 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:13" (1/1) ... [2024-01-30 14:25:13,324 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:13" (1/1) ... [2024-01-30 14:25:13,328 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-30 14:25:13,329 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-30 14:25:13,335 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-30 14:25:13,335 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-30 14:25:13,336 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:13" (1/1) ... [2024-01-30 14:25:13,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:25:13,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-30 14:25:13,369 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-30 14:25:13,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-30 14:25:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-30 14:25:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-30 14:25:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-30 14:25:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-30 14:25:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-30 14:25:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-30 14:25:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-30 14:25:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-01-30 14:25:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-30 14:25:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-30 14:25:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-30 14:25:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-30 14:25:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-30 14:25:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-01-30 14:25:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-30 14:25:13,415 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-30 14:25:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-30 14:25:13,416 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-30 14:25:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-30 14:25:13,416 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-30 14:25:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-30 14:25:13,416 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-30 14:25:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-30 14:25:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-30 14:25:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-30 14:25:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-30 14:25:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-30 14:25:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-01-30 14:25:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-30 14:25:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-30 14:25:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-01-30 14:25:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-30 14:25:13,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-30 14:25:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-30 14:25:13,421 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-30 14:25:13,580 INFO L244 CfgBuilder]: Building ICFG [2024-01-30 14:25:13,582 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-30 14:25:14,267 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-30 14:25:14,267 INFO L293 CfgBuilder]: Performing block encoding [2024-01-30 14:25:14,736 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-30 14:25:14,736 INFO L320 CfgBuilder]: Removed 6 assume(true) statements. [2024-01-30 14:25:14,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:25:14 BoogieIcfgContainer [2024-01-30 14:25:14,738 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-30 14:25:14,741 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-30 14:25:14,741 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-30 14:25:14,744 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-30 14:25:14,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:25:11" (1/4) ... [2024-01-30 14:25:14,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b660180 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:25:14, skipping insertion in model container [2024-01-30 14:25:14,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:25:12" (2/4) ... [2024-01-30 14:25:14,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b660180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:25:14, skipping insertion in model container [2024-01-30 14:25:14,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:13" (3/4) ... [2024-01-30 14:25:14,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b660180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:25:14, skipping insertion in model container [2024-01-30 14:25:14,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:25:14" (4/4) ... [2024-01-30 14:25:14,749 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-mult2.wvr.c [2024-01-30 14:25:14,766 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-30 14:25:14,767 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 91 error locations. [2024-01-30 14:25:14,767 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-30 14:25:14,938 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-30 14:25:14,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 191 transitions, 410 flow [2024-01-30 14:25:15,049 INFO L124 PetriNetUnfolderBase]: 6/187 cut-off events. [2024-01-30 14:25:15,049 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-30 14:25:15,056 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. [2024-01-30 14:25:15,056 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 191 transitions, 410 flow [2024-01-30 14:25:15,062 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 193 places, 186 transitions, 396 flow [2024-01-30 14:25:15,071 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:25:15,080 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;@7ebfa316, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:25:15,083 INFO L358 AbstractCegarLoop]: Starting to check reachability of 159 error locations. [2024-01-30 14:25:15,086 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:25:15,086 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-30 14:25:15,086 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:25:15,092 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:25:15,093 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-30 14:25:15,093 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 156 more)] === [2024-01-30 14:25:15,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:25:15,100 INFO L85 PathProgramCache]: Analyzing trace with hash 37919, now seen corresponding path program 1 times [2024-01-30 14:25:15,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:25:15,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249233356] [2024-01-30 14:25:15,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:25:15,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:25:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:25:15,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:25:15,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:25:15,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249233356] [2024-01-30 14:25:15,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249233356] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:25:15,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:25:15,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:25:15,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292995538] [2024-01-30 14:25:15,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:25:15,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:25:15,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:25:15,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:25:15,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:25:15,744 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 191 [2024-01-30 14:25:15,748 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) [2024-01-30 14:25:15,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:25:15,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 191 [2024-01-30 14:25:15,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:25:23,018 INFO L124 PetriNetUnfolderBase]: 38424/56337 cut-off events. [2024-01-30 14:25:23,019 INFO L125 PetriNetUnfolderBase]: For 1235/1235 co-relation queries the response was YES. [2024-01-30 14:25:23,206 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. [2024-01-30 14:25:23,609 INFO L140 encePairwiseOnDemand]: 164/191 looper letters, 88 selfloop transitions, 2 changer transitions 0/147 dead transitions. [2024-01-30 14:25:23,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 147 transitions, 498 flow [2024-01-30 14:25:23,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:25:23,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:25:23,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2024-01-30 14:25:23,622 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5619546247818499 [2024-01-30 14:25:23,624 INFO L175 Difference]: Start difference. First operand has 193 places, 186 transitions, 396 flow. Second operand 3 states and 322 transitions. [2024-01-30 14:25:23,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 147 transitions, 498 flow [2024-01-30 14:25:24,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 147 transitions, 482 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-01-30 14:25:24,263 INFO L231 Difference]: Finished difference. Result has 150 places, 147 transitions, 306 flow [2024-01-30 14:25:24,265 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} [2024-01-30 14:25:24,268 INFO L281 CegarLoopForPetriNet]: 193 programPoint places, -43 predicate places. [2024-01-30 14:25:24,269 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 147 transitions, 306 flow [2024-01-30 14:25:24,269 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) [2024-01-30 14:25:24,269 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:25:24,269 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-30 14:25:24,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-30 14:25:24,270 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 156 more)] === [2024-01-30 14:25:24,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:25:24,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1176768, now seen corresponding path program 1 times [2024-01-30 14:25:24,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:25:24,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439933857] [2024-01-30 14:25:24,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:25:24,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:25:24,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:25:24,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:25:24,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:25:24,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439933857] [2024-01-30 14:25:24,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439933857] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:25:24,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:25:24,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:25:24,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29219833] [2024-01-30 14:25:24,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:25:24,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:25:24,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:25:24,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:25:24,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:25:24,528 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 191 [2024-01-30 14:25:24,530 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) [2024-01-30 14:25:24,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:25:24,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 191 [2024-01-30 14:25:24,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:25:30,560 INFO L124 PetriNetUnfolderBase]: 38424/56336 cut-off events. [2024-01-30 14:25:30,560 INFO L125 PetriNetUnfolderBase]: For 184/184 co-relation queries the response was YES. [2024-01-30 14:25:30,659 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. [2024-01-30 14:25:31,004 INFO L140 encePairwiseOnDemand]: 188/191 looper letters, 86 selfloop transitions, 2 changer transitions 0/146 dead transitions. [2024-01-30 14:25:31,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 146 transitions, 480 flow [2024-01-30 14:25:31,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:25:31,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:25:31,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 302 transitions. [2024-01-30 14:25:31,011 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5270506108202443 [2024-01-30 14:25:31,011 INFO L175 Difference]: Start difference. First operand has 150 places, 147 transitions, 306 flow. Second operand 3 states and 302 transitions. [2024-01-30 14:25:31,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 146 transitions, 480 flow [2024-01-30 14:25:31,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 146 transitions, 476 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:25:31,017 INFO L231 Difference]: Finished difference. Result has 149 places, 146 transitions, 304 flow [2024-01-30 14:25:31,017 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} [2024-01-30 14:25:31,018 INFO L281 CegarLoopForPetriNet]: 193 programPoint places, -44 predicate places. [2024-01-30 14:25:31,018 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 146 transitions, 304 flow [2024-01-30 14:25:31,019 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) [2024-01-30 14:25:31,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:25:31,019 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-30 14:25:31,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-30 14:25:31,020 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 156 more)] === [2024-01-30 14:25:31,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:25:31,023 INFO L85 PathProgramCache]: Analyzing trace with hash 36481044, now seen corresponding path program 1 times [2024-01-30 14:25:31,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:25:31,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787559903] [2024-01-30 14:25:31,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:25:31,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:25:31,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:25:31,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:25:31,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:25:31,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787559903] [2024-01-30 14:25:31,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787559903] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:25:31,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:25:31,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:25:31,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730995246] [2024-01-30 14:25:31,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:25:31,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:25:31,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:25:31,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:25:31,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:25:31,235 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 191 [2024-01-30 14:25:31,236 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) [2024-01-30 14:25:31,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:25:31,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 191 [2024-01-30 14:25:31,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:25:35,700 INFO L124 PetriNetUnfolderBase]: 38424/56335 cut-off events. [2024-01-30 14:25:35,701 INFO L125 PetriNetUnfolderBase]: For 184/184 co-relation queries the response was YES. [2024-01-30 14:25:35,828 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. [2024-01-30 14:25:36,147 INFO L140 encePairwiseOnDemand]: 188/191 looper letters, 85 selfloop transitions, 2 changer transitions 0/145 dead transitions. [2024-01-30 14:25:36,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 145 transitions, 476 flow [2024-01-30 14:25:36,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:25:36,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:25:36,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2024-01-30 14:25:36,150 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5305410122164049 [2024-01-30 14:25:36,150 INFO L175 Difference]: Start difference. First operand has 149 places, 146 transitions, 304 flow. Second operand 3 states and 304 transitions. [2024-01-30 14:25:36,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 145 transitions, 476 flow [2024-01-30 14:25:36,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 145 transitions, 472 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:25:36,153 INFO L231 Difference]: Finished difference. Result has 148 places, 145 transitions, 302 flow [2024-01-30 14:25:36,154 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} [2024-01-30 14:25:36,154 INFO L281 CegarLoopForPetriNet]: 193 programPoint places, -45 predicate places. [2024-01-30 14:25:36,155 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 145 transitions, 302 flow [2024-01-30 14:25:36,155 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) [2024-01-30 14:25:36,155 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:25:36,155 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-30 14:25:36,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-30 14:25:36,156 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 156 more)] === [2024-01-30 14:25:36,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:25:36,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1130913670, now seen corresponding path program 1 times [2024-01-30 14:25:36,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:25:36,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404957819] [2024-01-30 14:25:36,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:25:36,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:25:36,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:25:36,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:25:36,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:25:36,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404957819] [2024-01-30 14:25:36,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404957819] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:25:36,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:25:36,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:25:36,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321774055] [2024-01-30 14:25:36,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:25:36,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:25:36,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:25:36,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:25:36,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:25:36,322 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 191 [2024-01-30 14:25:36,323 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) [2024-01-30 14:25:36,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:25:36,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 191 [2024-01-30 14:25:36,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:25:41,605 INFO L124 PetriNetUnfolderBase]: 38424/56334 cut-off events. [2024-01-30 14:25:41,607 INFO L125 PetriNetUnfolderBase]: For 184/184 co-relation queries the response was YES. [2024-01-30 14:25:41,728 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. [2024-01-30 14:25:41,997 INFO L140 encePairwiseOnDemand]: 188/191 looper letters, 84 selfloop transitions, 2 changer transitions 0/144 dead transitions. [2024-01-30 14:25:41,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 144 transitions, 472 flow [2024-01-30 14:25:41,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:25:41,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:25:41,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2024-01-30 14:25:41,998 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5340314136125655 [2024-01-30 14:25:41,998 INFO L175 Difference]: Start difference. First operand has 148 places, 145 transitions, 302 flow. Second operand 3 states and 306 transitions. [2024-01-30 14:25:41,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 144 transitions, 472 flow [2024-01-30 14:25:41,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 144 transitions, 468 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:25:42,000 INFO L231 Difference]: Finished difference. Result has 147 places, 144 transitions, 300 flow [2024-01-30 14:25:42,001 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} [2024-01-30 14:25:42,001 INFO L281 CegarLoopForPetriNet]: 193 programPoint places, -46 predicate places. [2024-01-30 14:25:42,002 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 144 transitions, 300 flow [2024-01-30 14:25:42,002 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) [2024-01-30 14:25:42,002 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:25:42,002 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-30 14:25:42,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-30 14:25:42,002 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 156 more)] === [2024-01-30 14:25:42,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:25:42,002 INFO L85 PathProgramCache]: Analyzing trace with hash 698586615, now seen corresponding path program 1 times [2024-01-30 14:25:42,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:25:42,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151385006] [2024-01-30 14:25:42,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:25:42,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:25:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:25:42,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:25:42,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:25:42,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151385006] [2024-01-30 14:25:42,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151385006] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:25:42,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:25:42,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:25:42,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335869158] [2024-01-30 14:25:42,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:25:42,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:25:42,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:25:42,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:25:42,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:25:42,139 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 191 [2024-01-30 14:25:42,140 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) [2024-01-30 14:25:42,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:25:42,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 191 [2024-01-30 14:25:42,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand