./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-atomic/szymanski.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/szymanski.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7c74aec 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/pthread-atomic/szymanski.i ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/szymanski.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-wip.fs.fix-undeclared-acsl-variable-e7c74ae-m [2024-02-07 19:00:23,536 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 19:00:23,646 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 19:00:23,660 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 19:00:23,660 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 19:00:23,688 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 19:00:23,689 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 19:00:23,689 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 19:00:23,690 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 19:00:23,693 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 19:00:23,693 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 19:00:23,693 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 19:00:23,694 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 19:00:23,695 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 19:00:23,696 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 19:00:23,696 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 19:00:23,696 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 19:00:23,696 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 19:00:23,697 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 19:00:23,697 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 19:00:23,697 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 19:00:23,697 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 19:00:23,698 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 19:00:23,698 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 19:00:23,698 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 19:00:23,698 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 19:00:23,698 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 19:00:23,699 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 19:00:23,699 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 19:00:23,700 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 19:00:23,700 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 19:00:23,701 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 19:00:23,701 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:00:23,701 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 19:00:23,701 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 19:00:23,701 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 19:00:23,702 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 19:00:23,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 19:00:23,702 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 19:00:23,702 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 19:00:23,702 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 19:00:23,703 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 19:00:23,703 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 19:00:23,703 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 19:00:24,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 19:00:24,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 19:00:24,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 19:00:24,149 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 19:00:24,150 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 19:00:24,151 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/szymanski.yml/witness.yml [2024-02-07 19:00:24,337 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 19:00:24,338 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 19:00:24,338 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i [2024-02-07 19:00:25,882 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 19:00:26,311 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 19:00:26,314 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i [2024-02-07 19:00:26,338 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df627baa0/9c474e74a45748cdbf08e15cb5d99b3b/FLAG1276ca87f [2024-02-07 19:00:26,369 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df627baa0/9c474e74a45748cdbf08e15cb5d99b3b [2024-02-07 19:00:26,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 19:00:26,370 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 19:00:26,373 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 19:00:26,373 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 19:00:26,377 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 19:00:26,378 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:00:24" (1/2) ... [2024-02-07 19:00:26,379 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eb449fe and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:00:26, skipping insertion in model container [2024-02-07 19:00:26,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:00:24" (1/2) ... [2024-02-07 19:00:26,388 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@77de7636 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:00:26, skipping insertion in model container [2024-02-07 19:00:26,389 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:00:26" (2/2) ... [2024-02-07 19:00:26,390 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eb449fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:00:26, skipping insertion in model container [2024-02-07 19:00:26,390 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:00:26" (2/2) ... [2024-02-07 19:00:26,390 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 19:00:26,691 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 19:00:26,705 INFO L76 edCorrectnessWitness]: Location invariant before [L795-L795] (((0 <= f12) && (f12 <= 4)) && (f12 <= 127)) && ((((f12 == 0 || f12 == 1) || f12 == 2) || f12 == 3) || f12 == 4) [2024-02-07 19:00:26,705 INFO L76 edCorrectnessWitness]: Location invariant before [L756-L756] flag1 == 0 [2024-02-07 19:00:26,705 INFO L76 edCorrectnessWitness]: Location invariant before [L711-L711] (((0 <= flag2) && (flag2 <= 4)) && (flag2 <= 127)) && ((((flag2 == 0 || flag2 == 1) || flag2 == 2) || flag2 == 3) || flag2 == 4) [2024-02-07 19:00:26,705 INFO L76 edCorrectnessWitness]: Location invariant before [L773-L773] flag2 == 3 [2024-02-07 19:00:26,706 INFO L76 edCorrectnessWitness]: Location invariant before [L776-L776] (((0 <= f12) && (f12 <= 4)) && (f12 <= 127)) && ((((f12 == 0 || f12 == 1) || f12 == 2) || f12 == 3) || f12 == 4) [2024-02-07 19:00:26,706 INFO L76 edCorrectnessWitness]: Location invariant before [L726-L726] (((0 <= f21) && (f21 <= 4)) && (f21 <= 127)) && ((((f21 == 0 || f21 == 1) || f21 == 2) || f21 == 3) || f21 == 4) [2024-02-07 19:00:26,706 INFO L76 edCorrectnessWitness]: Location invariant before [L720-L720] (((0 <= f21) && (f21 <= 4)) && (f21 <= 127)) && ((((f21 == 0 || f21 == 1) || f21 == 2) || f21 == 3) || f21 == 4) [2024-02-07 19:00:26,707 INFO L76 edCorrectnessWitness]: Location invariant before [L751-L751] (((0 <= flag2) && (flag2 <= 4)) && (flag2 <= 127)) && ((((flag2 == 0 || flag2 == 1) || flag2 == 2) || flag2 == 3) || flag2 == 4) [2024-02-07 19:00:26,707 INFO L76 edCorrectnessWitness]: Location invariant before [L748-L748] (((0 <= f21) && (f21 <= 4)) && (f21 <= 127)) && ((((f21 == 0 || f21 == 1) || f21 == 2) || f21 == 3) || f21 == 4) [2024-02-07 19:00:26,707 INFO L76 edCorrectnessWitness]: Location invariant before [L729-L729] (((0 <= flag2) && (flag2 <= 4)) && (flag2 <= 127)) && ((((flag2 == 0 || flag2 == 1) || flag2 == 2) || flag2 == 3) || flag2 == 4) [2024-02-07 19:00:26,707 INFO L76 edCorrectnessWitness]: Location invariant before [L730-L730] (((0 <= f21) && (f21 <= 4)) && (f21 <= 127)) && ((((f21 == 0 || f21 == 1) || f21 == 2) || f21 == 3) || f21 == 4) [2024-02-07 19:00:26,707 INFO L76 edCorrectnessWitness]: Location invariant before [L718-L718] (((0 <= flag2) && (flag2 <= 4)) && (flag2 <= 127)) && ((((flag2 == 0 || flag2 == 1) || flag2 == 2) || flag2 == 3) || flag2 == 4) [2024-02-07 19:00:26,707 INFO L76 edCorrectnessWitness]: Location invariant before [L752-L752] (((0 <= f21) && (f21 <= 4)) && (f21 <= 127)) && ((((f21 == 0 || f21 == 1) || f21 == 2) || f21 == 3) || f21 == 4) [2024-02-07 19:00:26,707 INFO L76 edCorrectnessWitness]: Location invariant before [L723-L723] flag1 == 2 [2024-02-07 19:00:26,708 INFO L76 edCorrectnessWitness]: Location invariant before [L799-L799] (((0 <= f12) && (f12 <= 4)) && (f12 <= 127)) && ((((f12 == 0 || f12 == 1) || f12 == 2) || f12 == 3) || f12 == 4) [2024-02-07 19:00:26,708 INFO L76 edCorrectnessWitness]: Location invariant before [L764-L764] (((0 <= flag1) && (flag1 <= 4)) && (flag1 <= 127)) && ((((flag1 == 0 || flag1 == 1) || flag1 == 2) || flag1 == 3) || flag1 == 4) [2024-02-07 19:00:26,708 INFO L76 edCorrectnessWitness]: Location invariant before [L716-L716] flag1 == 3 [2024-02-07 19:00:26,708 INFO L76 edCorrectnessWitness]: Location invariant before [L747-L747] (((0 <= flag2) && (flag2 <= 4)) && (flag2 <= 127)) && ((((flag2 == 0 || flag2 == 1) || flag2 == 2) || flag2 == 3) || flag2 == 4) [2024-02-07 19:00:26,708 INFO L76 edCorrectnessWitness]: Location invariant before [L777-L777] (((0 <= f12) && (f12 <= 4)) && (f12 <= 127)) && ((((f12 == 0 || f12 == 1) || f12 == 2) || f12 == 3) || f12 == 4) [2024-02-07 19:00:26,708 INFO L76 edCorrectnessWitness]: Location invariant before [L787-L787] (((0 <= f12) && (f12 <= 4)) && (f12 <= 127)) && ((((f12 == 0 || f12 == 1) || f12 == 2) || f12 == 3) || f12 == 4) [2024-02-07 19:00:26,708 INFO L76 edCorrectnessWitness]: Location invariant before [L762-L762] flag2 == 1 [2024-02-07 19:00:26,709 INFO L76 edCorrectnessWitness]: Location invariant before [L804-L804] (((0 <= flag1) && (flag1 <= 4)) && (flag1 <= 127)) && ((((flag1 == 0 || flag1 == 1) || flag1 == 2) || flag1 == 3) || flag1 == 4) [2024-02-07 19:00:26,709 INFO L76 edCorrectnessWitness]: Location invariant before [L805-L805] (((0 <= f12) && (f12 <= 4)) && (f12 <= 127)) && ((((f12 == 0 || f12 == 1) || f12 == 2) || f12 == 3) || f12 == 4) [2024-02-07 19:00:26,709 INFO L76 edCorrectnessWitness]: Location invariant before [L775-L775] (((0 <= flag1) && (flag1 <= 4)) && (flag1 <= 127)) && ((((flag1 == 0 || flag1 == 1) || flag1 == 2) || flag1 == 3) || flag1 == 4) [2024-02-07 19:00:26,709 INFO L76 edCorrectnessWitness]: Location invariant before [L782-L782] (((0 <= flag1) && (flag1 <= 4)) && (flag1 <= 127)) && ((((flag1 == 0 || flag1 == 1) || flag1 == 2) || flag1 == 3) || flag1 == 4) [2024-02-07 19:00:26,710 INFO L76 edCorrectnessWitness]: Location invariant before [L707-L707] (((0 <= flag2) && (flag2 <= 4)) && (flag2 <= 127)) && ((((flag2 == 0 || flag2 == 1) || flag2 == 2) || flag2 == 3) || flag2 == 4) [2024-02-07 19:00:26,710 INFO L76 edCorrectnessWitness]: Location invariant before [L813-L813] flag2 == 0 [2024-02-07 19:00:26,710 INFO L76 edCorrectnessWitness]: Location invariant before [L741-L741] (((0 <= flag2) && (flag2 <= 4)) && (flag2 <= 127)) && ((((flag2 == 0 || flag2 == 1) || flag2 == 2) || flag2 == 3) || flag2 == 4) [2024-02-07 19:00:26,710 INFO L76 edCorrectnessWitness]: Location invariant before [L802-L802] ((0 <= x) && (x <= 1)) && (x == 0 || x == 1) [2024-02-07 19:00:26,710 INFO L76 edCorrectnessWitness]: Location invariant before [L742-L742] (((0 <= f21) && (f21 <= 4)) && (f21 <= 127)) && ((((f21 == 0 || f21 == 1) || f21 == 2) || f21 == 3) || f21 == 4) [2024-02-07 19:00:26,710 INFO L76 edCorrectnessWitness]: Location invariant before [L719-L719] (((0 <= f21) && (f21 <= 4)) && (f21 <= 127)) && ((((f21 == 0 || f21 == 1) || f21 == 2) || f21 == 3) || f21 == 4) [2024-02-07 19:00:26,710 INFO L76 edCorrectnessWitness]: Location invariant before [L783-L783] (((0 <= f12) && (f12 <= 4)) && (f12 <= 127)) && ((((f12 == 0 || f12 == 1) || f12 == 2) || f12 == 3) || f12 == 4) [2024-02-07 19:00:26,710 INFO L76 edCorrectnessWitness]: Location invariant before [L745-L745] ((0 <= x) && (x <= 1)) && (x == 0 || x == 1) [2024-02-07 19:00:26,711 INFO L76 edCorrectnessWitness]: Location invariant before [L780-L780] flag2 == 2 [2024-02-07 19:00:26,711 INFO L76 edCorrectnessWitness]: Location invariant after [L802-L802] ((0 <= x) && (x <= 1)) && (x == 0 || x == 1) [2024-02-07 19:00:26,711 INFO L76 edCorrectnessWitness]: Location invariant before [L769-L769] (((0 <= f12) && (f12 <= 4)) && (f12 <= 127)) && ((((f12 == 0 || f12 == 1) || f12 == 2) || f12 == 3) || f12 == 4) [2024-02-07 19:00:26,711 INFO L76 edCorrectnessWitness]: Location invariant before [L794-L794] (((0 <= flag1) && (flag1 <= 4)) && (flag1 <= 127)) && ((((flag1 == 0 || flag1 == 1) || flag1 == 2) || flag1 == 3) || flag1 == 4) [2024-02-07 19:00:26,711 INFO L76 edCorrectnessWitness]: Location invariant after [L764-L764] (((0 <= flag1) && (flag1 <= 4)) && (flag1 <= 127)) && ((((flag1 == 0 || flag1 == 1) || flag1 == 2) || flag1 == 3) || flag1 == 4) [2024-02-07 19:00:26,712 INFO L76 edCorrectnessWitness]: Location invariant before [L705-L705] flag1 == 1 [2024-02-07 19:00:26,712 INFO L76 edCorrectnessWitness]: Location invariant before [L809-L809] (((0 <= f12) && (f12 <= 4)) && (f12 <= 127)) && ((((f12 == 0 || f12 == 1) || f12 == 2) || f12 == 3) || f12 == 4) [2024-02-07 19:00:26,713 INFO L76 edCorrectnessWitness]: Location invariant before [L798-L798] (((0 <= flag1) && (flag1 <= 4)) && (flag1 <= 127)) && ((((flag1 == 0 || flag1 == 1) || flag1 == 2) || flag1 == 3) || flag1 == 4) [2024-02-07 19:00:26,713 INFO L76 edCorrectnessWitness]: Location invariant before [L725-L725] (((0 <= flag2) && (flag2 <= 4)) && (flag2 <= 127)) && ((((flag2 == 0 || flag2 == 1) || flag2 == 2) || flag2 == 3) || flag2 == 4) [2024-02-07 19:00:26,713 INFO L76 edCorrectnessWitness]: Location invariant before [L786-L786] (((0 <= flag1) && (flag1 <= 4)) && (flag1 <= 127)) && ((((flag1 == 0 || flag1 == 1) || flag1 == 2) || flag1 == 3) || flag1 == 4) [2024-02-07 19:00:26,713 INFO L76 edCorrectnessWitness]: Location invariant before [L737-L737] (((0 <= flag2) && (flag2 <= 4)) && (flag2 <= 127)) && ((((flag2 == 0 || flag2 == 1) || flag2 == 2) || flag2 == 3) || flag2 == 4) [2024-02-07 19:00:26,713 INFO L76 edCorrectnessWitness]: Location invariant before [L712-L712] (((0 <= f21) && (f21 <= 4)) && (f21 <= 127)) && ((((f21 == 0 || f21 == 1) || f21 == 2) || f21 == 3) || f21 == 4) [2024-02-07 19:00:26,713 INFO L76 edCorrectnessWitness]: Location invariant before [L708-L708] (((0 <= f21) && (f21 <= 4)) && (f21 <= 127)) && ((((f21 == 0 || f21 == 1) || f21 == 2) || f21 == 3) || f21 == 4) [2024-02-07 19:00:26,714 INFO L76 edCorrectnessWitness]: Location invariant before [L738-L738] (((0 <= f21) && (f21 <= 4)) && (f21 <= 127)) && ((((f21 == 0 || f21 == 1) || f21 == 2) || f21 == 3) || f21 == 4) [2024-02-07 19:00:26,714 INFO L76 edCorrectnessWitness]: Location invariant before [L792-L792] flag2 == 4 [2024-02-07 19:00:26,714 INFO L76 edCorrectnessWitness]: Location invariant before [L745-L745] ((0 <= x) && (x <= 1)) && (x == 0 || x == 1) [2024-02-07 19:00:26,714 INFO L76 edCorrectnessWitness]: Location invariant before [L808-L808] (((0 <= flag1) && (flag1 <= 4)) && (flag1 <= 127)) && ((((flag1 == 0 || flag1 == 1) || flag1 == 2) || flag1 == 3) || flag1 == 4) [2024-02-07 19:00:26,714 INFO L76 edCorrectnessWitness]: Location invariant before [L768-L768] (((0 <= flag1) && (flag1 <= 4)) && (flag1 <= 127)) && ((((flag1 == 0 || flag1 == 1) || flag1 == 2) || flag1 == 3) || flag1 == 4) [2024-02-07 19:00:26,715 INFO L76 edCorrectnessWitness]: Location invariant after [L745-L745] ((0 <= x) && (x <= 1)) && (x == 0 || x == 1) [2024-02-07 19:00:26,715 INFO L76 edCorrectnessWitness]: Location invariant before [L765-L765] (((0 <= f12) && (f12 <= 4)) && (f12 <= 127)) && ((((f12 == 0 || f12 == 1) || f12 == 2) || f12 == 3) || f12 == 4) [2024-02-07 19:00:26,715 INFO L76 edCorrectnessWitness]: Location invariant before [L802-L802] ((0 <= x) && (x <= 1)) && (x == 0 || x == 1) [2024-02-07 19:00:26,715 INFO L76 edCorrectnessWitness]: Location invariant before [L735-L735] flag1 == 4 [2024-02-07 19:00:26,716 INFO L76 edCorrectnessWitness]: Location invariant after [L707-L707] (((0 <= flag2) && (flag2 <= 4)) && (flag2 <= 127)) && ((((flag2 == 0 || flag2 == 1) || flag2 == 2) || flag2 == 3) || flag2 == 4) [2024-02-07 19:00:26,783 INFO L181 MainTranslator]: Built tables and reachable declarations [2024-02-07 19:00:27,208 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[31505,31518] [2024-02-07 19:00:27,216 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[32915,32928] [2024-02-07 19:00:27,224 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:00:27,232 INFO L206 MainTranslator]: Completed pre-run Start Parsing Local [2024-02-07 19:00:27,296 WARN L423 MainDispatcher]: Unable to annotate int with a witness entry [2024-02-07 19:00:27,297 WARN L423 MainDispatcher]: Unable to annotate f21 = flag2 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 [2024-02-07 19:00:27,336 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[31505,31518] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 19:00:27,347 WARN L423 MainDispatcher]: Unable to annotate int with a witness entry [2024-02-07 19:00:27,348 WARN L423 MainDispatcher]: Unable to annotate f12 = flag1 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 [2024-02-07 19:00:27,395 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[32915,32928] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 19:00:27,433 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:00:27,463 INFO L211 MainTranslator]: Completed translation [2024-02-07 19:00:27,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:00:27 WrapperNode [2024-02-07 19:00:27,465 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 19:00:27,467 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 19:00:27,467 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 19:00:27,467 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 19:00:27,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:00:27" (1/1) ... [2024-02-07 19:00:27,502 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:00:27" (1/1) ... [2024-02-07 19:00:27,523 INFO L138 Inliner]: procedures = 170, calls = 74, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2024-02-07 19:00:27,523 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 19:00:27,524 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 19:00:27,525 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 19:00:27,525 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 19:00:27,534 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:00:27" (1/1) ... [2024-02-07 19:00:27,534 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:00:27" (1/1) ... [2024-02-07 19:00:27,544 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:00:27" (1/1) ... [2024-02-07 19:00:27,568 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-02-07 19:00:27,568 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:00:27" (1/1) ... [2024-02-07 19:00:27,569 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:00:27" (1/1) ... [2024-02-07 19:00:27,596 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:00:27" (1/1) ... [2024-02-07 19:00:27,599 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:00:27" (1/1) ... [2024-02-07 19:00:27,601 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:00:27" (1/1) ... [2024-02-07 19:00:27,605 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:00:27" (1/1) ... [2024-02-07 19:00:27,608 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 19:00:27,610 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 19:00:27,610 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 19:00:27,610 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 19:00:27,611 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:00:27" (1/1) ... [2024-02-07 19:00:27,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:00:27,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 19:00:27,662 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) [2024-02-07 19:00:27,668 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 [2024-02-07 19:00:27,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-07 19:00:27,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-07 19:00:27,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-07 19:00:27,722 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-02-07 19:00:27,722 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-02-07 19:00:27,723 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-02-07 19:00:27,723 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-02-07 19:00:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 19:00:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 19:00:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 19:00:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-07 19:00:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 19:00:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 19:00:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 19:00:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 19:00:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 19:00:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 19:00:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-07 19:00:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 19:00:27,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 19:00:27,740 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 19:00:27,949 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 19:00:27,958 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 19:00:28,609 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 19:00:28,609 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 19:00:28,759 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 19:00:28,760 INFO L320 CfgBuilder]: Removed 8 assume(true) statements. [2024-02-07 19:00:28,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:00:28 BoogieIcfgContainer [2024-02-07 19:00:28,760 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 19:00:28,762 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 19:00:28,762 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 19:00:28,765 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 19:00:28,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:00:24" (1/4) ... [2024-02-07 19:00:28,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1155792b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:00:28, skipping insertion in model container [2024-02-07 19:00:28,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 07:00:26" (2/4) ... [2024-02-07 19:00:28,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1155792b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:00:28, skipping insertion in model container [2024-02-07 19:00:28,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:00:27" (3/4) ... [2024-02-07 19:00:28,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1155792b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:00:28, skipping insertion in model container [2024-02-07 19:00:28,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:00:28" (4/4) ... [2024-02-07 19:00:28,769 INFO L112 eAbstractionObserver]: Analyzing ICFG szymanski.i [2024-02-07 19:00:28,782 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 19:00:28,783 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 52 error locations. [2024-02-07 19:00:28,783 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 19:00:28,892 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-02-07 19:00:28,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 127 transitions, 268 flow [2024-02-07 19:00:29,010 INFO L124 PetriNetUnfolderBase]: 12/125 cut-off events. [2024-02-07 19:00:29,010 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-02-07 19:00:29,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 125 events. 12/125 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 441 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 121. Up to 2 conditions per place. [2024-02-07 19:00:29,014 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 127 transitions, 268 flow [2024-02-07 19:00:29,018 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 123 transitions, 255 flow [2024-02-07 19:00:29,025 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 19:00:29,030 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;@7f6c87bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 19:00:29,030 INFO L358 AbstractCegarLoop]: Starting to check reachability of 106 error locations. [2024-02-07 19:00:29,036 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 19:00:29,036 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-02-07 19:00:29,036 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:00:29,037 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:00:29,037 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-07 19:00:29,038 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 19:00:29,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:00:29,044 INFO L85 PathProgramCache]: Analyzing trace with hash 16830997, now seen corresponding path program 1 times [2024-02-07 19:00:29,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:00:29,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917056604] [2024-02-07 19:00:29,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:00:29,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:00:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:00:29,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:00:29,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:00:29,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917056604] [2024-02-07 19:00:29,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917056604] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:00:29,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:00:29,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:00:29,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824364414] [2024-02-07 19:00:29,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:00:29,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-02-07 19:00:29,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:00:29,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-02-07 19:00:29,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-02-07 19:00:29,238 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 127 [2024-02-07 19:00:29,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 123 transitions, 255 flow. Second operand has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 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) [2024-02-07 19:00:29,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:00:29,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 127 [2024-02-07 19:00:29,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:00:29,834 INFO L124 PetriNetUnfolderBase]: 2332/4486 cut-off events. [2024-02-07 19:00:29,835 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2024-02-07 19:00:29,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8214 conditions, 4486 events. 2332/4486 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 30170 event pairs, 1816 based on Foata normal form. 88/3328 useless extension candidates. Maximal degree in co-relation 7963. Up to 3650 conditions per place. [2024-02-07 19:00:29,870 INFO L140 encePairwiseOnDemand]: 99/127 looper letters, 63 selfloop transitions, 0 changer transitions 0/95 dead transitions. [2024-02-07 19:00:29,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 95 transitions, 325 flow [2024-02-07 19:00:29,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-02-07 19:00:29,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-02-07 19:00:29,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 159 transitions. [2024-02-07 19:00:29,882 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6259842519685039 [2024-02-07 19:00:29,885 INFO L175 Difference]: Start difference. First operand has 118 places, 123 transitions, 255 flow. Second operand 2 states and 159 transitions. [2024-02-07 19:00:29,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 95 transitions, 325 flow [2024-02-07 19:00:29,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 95 transitions, 320 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-07 19:00:29,896 INFO L231 Difference]: Finished difference. Result has 90 places, 95 transitions, 194 flow [2024-02-07 19:00:29,898 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=194, PETRI_PLACES=90, PETRI_TRANSITIONS=95} [2024-02-07 19:00:29,901 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -28 predicate places. [2024-02-07 19:00:29,902 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 95 transitions, 194 flow [2024-02-07 19:00:29,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 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) [2024-02-07 19:00:29,902 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:00:29,902 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-07 19:00:29,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 19:00:29,902 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 19:00:29,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:00:29,904 INFO L85 PathProgramCache]: Analyzing trace with hash 521761603, now seen corresponding path program 1 times [2024-02-07 19:00:29,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:00:29,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722966816] [2024-02-07 19:00:29,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:00:29,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:00:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:00:30,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:00:30,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:00:30,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722966816] [2024-02-07 19:00:30,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722966816] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:00:30,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:00:30,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:00:30,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043402209] [2024-02-07 19:00:30,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:00:30,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:00:30,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:00:30,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:00:30,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:00:30,053 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 127 [2024-02-07 19:00:30,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 95 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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) [2024-02-07 19:00:30,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:00:30,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 127 [2024-02-07 19:00:30,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:00:30,421 INFO L124 PetriNetUnfolderBase]: 2227/4175 cut-off events. [2024-02-07 19:00:30,421 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-02-07 19:00:30,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7707 conditions, 4175 events. 2227/4175 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 27102 event pairs, 551 based on Foata normal form. 0/3062 useless extension candidates. Maximal degree in co-relation 7704. Up to 3141 conditions per place. [2024-02-07 19:00:30,445 INFO L140 encePairwiseOnDemand]: 115/127 looper letters, 82 selfloop transitions, 3 changer transitions 0/117 dead transitions. [2024-02-07 19:00:30,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 117 transitions, 409 flow [2024-02-07 19:00:30,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:00:30,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:00:30,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 196 transitions. [2024-02-07 19:00:30,447 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5144356955380578 [2024-02-07 19:00:30,448 INFO L175 Difference]: Start difference. First operand has 90 places, 95 transitions, 194 flow. Second operand 3 states and 196 transitions. [2024-02-07 19:00:30,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 117 transitions, 409 flow [2024-02-07 19:00:30,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 117 transitions, 409 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-07 19:00:30,451 INFO L231 Difference]: Finished difference. Result has 93 places, 95 transitions, 221 flow [2024-02-07 19:00:30,451 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=221, PETRI_PLACES=93, PETRI_TRANSITIONS=95} [2024-02-07 19:00:30,452 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -25 predicate places. [2024-02-07 19:00:30,452 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 95 transitions, 221 flow [2024-02-07 19:00:30,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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) [2024-02-07 19:00:30,452 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:00:30,452 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:00:30,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 19:00:30,453 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 19:00:30,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:00:30,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1165818783, now seen corresponding path program 1 times [2024-02-07 19:00:30,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:00:30,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957010073] [2024-02-07 19:00:30,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:00:30,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:00:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:00:30,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:00:30,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:00:30,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957010073] [2024-02-07 19:00:30,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957010073] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:00:30,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:00:30,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:00:30,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424179516] [2024-02-07 19:00:30,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:00:30,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:00:30,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:00:30,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:00:30,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:00:30,547 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 127 [2024-02-07 19:00:30,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 95 transitions, 221 flow. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2024-02-07 19:00:30,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:00:30,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 127 [2024-02-07 19:00:30,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:00:30,913 INFO L124 PetriNetUnfolderBase]: 2184/4268 cut-off events. [2024-02-07 19:00:30,913 INFO L125 PetriNetUnfolderBase]: For 436/436 co-relation queries the response was YES. [2024-02-07 19:00:30,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8276 conditions, 4268 events. 2184/4268 cut-off events. For 436/436 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 28997 event pairs, 871 based on Foata normal form. 0/3552 useless extension candidates. Maximal degree in co-relation 8271. Up to 3080 conditions per place. [2024-02-07 19:00:30,935 INFO L140 encePairwiseOnDemand]: 115/127 looper letters, 82 selfloop transitions, 3 changer transitions 0/117 dead transitions. [2024-02-07 19:00:30,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 117 transitions, 443 flow [2024-02-07 19:00:30,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:00:30,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:00:30,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 196 transitions. [2024-02-07 19:00:30,939 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5144356955380578 [2024-02-07 19:00:30,940 INFO L175 Difference]: Start difference. First operand has 93 places, 95 transitions, 221 flow. Second operand 3 states and 196 transitions. [2024-02-07 19:00:30,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 117 transitions, 443 flow [2024-02-07 19:00:30,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 117 transitions, 433 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 19:00:30,952 INFO L231 Difference]: Finished difference. Result has 94 places, 95 transitions, 242 flow [2024-02-07 19:00:30,952 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=94, PETRI_TRANSITIONS=95} [2024-02-07 19:00:30,953 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -24 predicate places. [2024-02-07 19:00:30,953 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 95 transitions, 242 flow [2024-02-07 19:00:30,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2024-02-07 19:00:30,954 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:00:30,954 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:00:30,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-07 19:00:30,954 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 19:00:30,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:00:30,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1010824461, now seen corresponding path program 1 times [2024-02-07 19:00:30,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:00:30,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136568926] [2024-02-07 19:00:30,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:00:30,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:00:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:00:31,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:00:31,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:00:31,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136568926] [2024-02-07 19:00:31,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136568926] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:00:31,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:00:31,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:00:31,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6407171] [2024-02-07 19:00:31,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:00:31,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:00:31,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:00:31,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:00:31,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:00:31,049 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 127 [2024-02-07 19:00:31,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 95 transitions, 242 flow. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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) [2024-02-07 19:00:31,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:00:31,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 127 [2024-02-07 19:00:31,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:00:31,392 INFO L124 PetriNetUnfolderBase]: 2026/3946 cut-off events. [2024-02-07 19:00:31,393 INFO L125 PetriNetUnfolderBase]: For 789/789 co-relation queries the response was YES. [2024-02-07 19:00:31,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7993 conditions, 3946 events. 2026/3946 cut-off events. For 789/789 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 26417 event pairs, 1282 based on Foata normal form. 90/3686 useless extension candidates. Maximal degree in co-relation 7987. Up to 2744 conditions per place. [2024-02-07 19:00:31,436 INFO L140 encePairwiseOnDemand]: 116/127 looper letters, 83 selfloop transitions, 2 changer transitions 0/117 dead transitions. [2024-02-07 19:00:31,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 117 transitions, 460 flow [2024-02-07 19:00:31,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:00:31,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:00:31,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 196 transitions. [2024-02-07 19:00:31,438 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5144356955380578 [2024-02-07 19:00:31,438 INFO L175 Difference]: Start difference. First operand has 94 places, 95 transitions, 242 flow. Second operand 3 states and 196 transitions. [2024-02-07 19:00:31,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 117 transitions, 460 flow [2024-02-07 19:00:31,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 117 transitions, 454 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 19:00:31,445 INFO L231 Difference]: Finished difference. Result has 95 places, 95 transitions, 260 flow [2024-02-07 19:00:31,446 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=95, PETRI_TRANSITIONS=95} [2024-02-07 19:00:31,447 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -23 predicate places. [2024-02-07 19:00:31,447 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 95 transitions, 260 flow [2024-02-07 19:00:31,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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) [2024-02-07 19:00:31,448 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:00:31,448 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:00:31,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-07 19:00:31,448 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 19:00:31,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:00:31,449 INFO L85 PathProgramCache]: Analyzing trace with hash 634687897, now seen corresponding path program 1 times [2024-02-07 19:00:31,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:00:31,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741296953] [2024-02-07 19:00:31,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:00:31,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:00:31,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:00:31,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:00:31,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:00:31,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741296953] [2024-02-07 19:00:31,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741296953] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:00:31,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:00:31,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:00:31,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80651826] [2024-02-07 19:00:31,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:00:31,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:00:31,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:00:31,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:00:31,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:00:31,501 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 127 [2024-02-07 19:00:31,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 95 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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) [2024-02-07 19:00:31,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:00:31,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 127 [2024-02-07 19:00:31,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:00:31,902 INFO L124 PetriNetUnfolderBase]: 1887/3639 cut-off events. [2024-02-07 19:00:31,902 INFO L125 PetriNetUnfolderBase]: For 1226/1228 co-relation queries the response was YES. [2024-02-07 19:00:31,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7645 conditions, 3639 events. 1887/3639 cut-off events. For 1226/1228 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 23835 event pairs, 1209 based on Foata normal form. 84/3419 useless extension candidates. Maximal degree in co-relation 7638. Up to 2553 conditions per place. [2024-02-07 19:00:31,928 INFO L140 encePairwiseOnDemand]: 116/127 looper letters, 83 selfloop transitions, 2 changer transitions 0/117 dead transitions. [2024-02-07 19:00:31,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 117 transitions, 483 flow [2024-02-07 19:00:31,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:00:31,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:00:31,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 196 transitions. [2024-02-07 19:00:31,930 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5144356955380578 [2024-02-07 19:00:31,930 INFO L175 Difference]: Start difference. First operand has 95 places, 95 transitions, 260 flow. Second operand 3 states and 196 transitions. [2024-02-07 19:00:31,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 117 transitions, 483 flow [2024-02-07 19:00:31,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 117 transitions, 475 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 19:00:31,940 INFO L231 Difference]: Finished difference. Result has 96 places, 95 transitions, 280 flow [2024-02-07 19:00:31,940 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=280, PETRI_PLACES=96, PETRI_TRANSITIONS=95} [2024-02-07 19:00:31,943 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -22 predicate places. [2024-02-07 19:00:31,943 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 95 transitions, 280 flow [2024-02-07 19:00:31,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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) [2024-02-07 19:00:31,943 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:00:31,944 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:00:31,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-07 19:00:31,944 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 19:00:31,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:00:31,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1142950922, now seen corresponding path program 1 times [2024-02-07 19:00:31,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:00:31,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246647172] [2024-02-07 19:00:31,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:00:31,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:00:31,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:00:32,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:00:32,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:00:32,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246647172] [2024-02-07 19:00:32,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246647172] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:00:32,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:00:32,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:00:32,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430548622] [2024-02-07 19:00:32,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:00:32,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:00:32,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:00:32,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:00:32,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:00:32,046 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 127 [2024-02-07 19:00:32,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 95 transitions, 280 flow. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-02-07 19:00:32,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:00:32,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 127 [2024-02-07 19:00:32,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:00:32,763 INFO L124 PetriNetUnfolderBase]: 3144/6252 cut-off events. [2024-02-07 19:00:32,763 INFO L125 PetriNetUnfolderBase]: For 2473/2477 co-relation queries the response was YES. [2024-02-07 19:00:32,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13428 conditions, 6252 events. 3144/6252 cut-off events. For 2473/2477 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 46614 event pairs, 953 based on Foata normal form. 108/5696 useless extension candidates. Maximal degree in co-relation 13420. Up to 3257 conditions per place. [2024-02-07 19:00:32,801 INFO L140 encePairwiseOnDemand]: 109/127 looper letters, 129 selfloop transitions, 13 changer transitions 13/182 dead transitions. [2024-02-07 19:00:32,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 182 transitions, 833 flow [2024-02-07 19:00:32,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 19:00:32,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 19:00:32,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 311 transitions. [2024-02-07 19:00:32,804 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48976377952755906 [2024-02-07 19:00:32,804 INFO L175 Difference]: Start difference. First operand has 96 places, 95 transitions, 280 flow. Second operand 5 states and 311 transitions. [2024-02-07 19:00:32,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 182 transitions, 833 flow [2024-02-07 19:00:32,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 182 transitions, 825 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 19:00:32,813 INFO L231 Difference]: Finished difference. Result has 101 places, 105 transitions, 391 flow [2024-02-07 19:00:32,814 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=391, PETRI_PLACES=101, PETRI_TRANSITIONS=105} [2024-02-07 19:00:32,814 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -17 predicate places. [2024-02-07 19:00:32,814 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 105 transitions, 391 flow [2024-02-07 19:00:32,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-02-07 19:00:32,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:00:32,815 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:00:32,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-07 19:00:32,815 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr2Err7ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 19:00:32,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:00:32,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1794136, now seen corresponding path program 1 times [2024-02-07 19:00:32,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:00:32,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82515815] [2024-02-07 19:00:32,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:00:32,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:00:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:00:32,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:00:32,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:00:32,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82515815] [2024-02-07 19:00:32,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82515815] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:00:32,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:00:32,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:00:32,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475541125] [2024-02-07 19:00:32,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:00:32,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:00:32,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:00:32,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:00:32,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:00:32,910 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 127 [2024-02-07 19:00:32,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 105 transitions, 391 flow. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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) [2024-02-07 19:00:32,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:00:32,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 127 [2024-02-07 19:00:32,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:00:33,373 INFO L124 PetriNetUnfolderBase]: 3112/5884 cut-off events. [2024-02-07 19:00:33,373 INFO L125 PetriNetUnfolderBase]: For 3723/3733 co-relation queries the response was YES. [2024-02-07 19:00:33,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14126 conditions, 5884 events. 3112/5884 cut-off events. For 3723/3733 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 41358 event pairs, 706 based on Foata normal form. 0/5530 useless extension candidates. Maximal degree in co-relation 14115. Up to 4760 conditions per place. [2024-02-07 19:00:33,412 INFO L140 encePairwiseOnDemand]: 125/127 looper letters, 101 selfloop transitions, 1 changer transitions 0/130 dead transitions. [2024-02-07 19:00:33,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 130 transitions, 689 flow [2024-02-07 19:00:33,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:00:33,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:00:33,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 179 transitions. [2024-02-07 19:00:33,414 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46981627296587924 [2024-02-07 19:00:33,414 INFO L175 Difference]: Start difference. First operand has 101 places, 105 transitions, 391 flow. Second operand 3 states and 179 transitions. [2024-02-07 19:00:33,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 130 transitions, 689 flow [2024-02-07 19:00:33,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 130 transitions, 685 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-02-07 19:00:33,424 INFO L231 Difference]: Finished difference. Result has 102 places, 104 transitions, 389 flow [2024-02-07 19:00:33,425 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=389, PETRI_PLACES=102, PETRI_TRANSITIONS=104} [2024-02-07 19:00:33,426 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -16 predicate places. [2024-02-07 19:00:33,426 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 104 transitions, 389 flow [2024-02-07 19:00:33,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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) [2024-02-07 19:00:33,426 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:00:33,426 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:00:33,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-02-07 19:00:33,426 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 19:00:33,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:00:33,427 INFO L85 PathProgramCache]: Analyzing trace with hash 208694278, now seen corresponding path program 1 times [2024-02-07 19:00:33,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:00:33,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768750086] [2024-02-07 19:00:33,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:00:33,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:00:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:00:33,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:00:33,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:00:33,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768750086] [2024-02-07 19:00:33,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768750086] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:00:33,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:00:33,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:00:33,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369583804] [2024-02-07 19:00:33,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:00:33,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:00:33,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:00:33,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:00:33,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:00:33,482 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 127 [2024-02-07 19:00:33,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 104 transitions, 389 flow. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2024-02-07 19:00:33,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:00:33,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 127 [2024-02-07 19:00:33,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:00:34,008 INFO L124 PetriNetUnfolderBase]: 2626/5302 cut-off events. [2024-02-07 19:00:34,008 INFO L125 PetriNetUnfolderBase]: For 3364/3394 co-relation queries the response was YES. [2024-02-07 19:00:34,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12361 conditions, 5302 events. 2626/5302 cut-off events. For 3364/3394 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 39027 event pairs, 1651 based on Foata normal form. 112/4920 useless extension candidates. Maximal degree in co-relation 12349. Up to 3803 conditions per place. [2024-02-07 19:00:34,092 INFO L140 encePairwiseOnDemand]: 115/127 looper letters, 94 selfloop transitions, 3 changer transitions 0/128 dead transitions. [2024-02-07 19:00:34,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 128 transitions, 651 flow [2024-02-07 19:00:34,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:00:34,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:00:34,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2024-02-07 19:00:34,098 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5170603674540682 [2024-02-07 19:00:34,098 INFO L175 Difference]: Start difference. First operand has 102 places, 104 transitions, 389 flow. Second operand 3 states and 197 transitions. [2024-02-07 19:00:34,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 128 transitions, 651 flow [2024-02-07 19:00:34,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 128 transitions, 649 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:00:34,108 INFO L231 Difference]: Finished difference. Result has 104 places, 105 transitions, 419 flow [2024-02-07 19:00:34,108 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=419, PETRI_PLACES=104, PETRI_TRANSITIONS=105} [2024-02-07 19:00:34,109 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -14 predicate places. [2024-02-07 19:00:34,109 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 105 transitions, 419 flow [2024-02-07 19:00:34,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2024-02-07 19:00:34,110 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:00:34,110 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:00:34,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-02-07 19:00:34,110 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 19:00:34,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:00:34,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1566313708, now seen corresponding path program 1 times [2024-02-07 19:00:34,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:00:34,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001730477] [2024-02-07 19:00:34,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:00:34,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:00:34,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:00:34,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:00:34,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:00:34,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001730477] [2024-02-07 19:00:34,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001730477] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:00:34,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:00:34,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:00:34,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78497389] [2024-02-07 19:00:34,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:00:34,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:00:34,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:00:34,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:00:34,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:00:34,152 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 127 [2024-02-07 19:00:34,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 105 transitions, 419 flow. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2024-02-07 19:00:34,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:00:34,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 127 [2024-02-07 19:00:34,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:00:34,718 INFO L124 PetriNetUnfolderBase]: 2554/5198 cut-off events. [2024-02-07 19:00:34,718 INFO L125 PetriNetUnfolderBase]: For 4298/4320 co-relation queries the response was YES. [2024-02-07 19:00:34,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12588 conditions, 5198 events. 2554/5198 cut-off events. For 4298/4320 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 37951 event pairs, 1625 based on Foata normal form. 68/4818 useless extension candidates. Maximal degree in co-relation 12575. Up to 3777 conditions per place. [2024-02-07 19:00:34,759 INFO L140 encePairwiseOnDemand]: 115/127 looper letters, 98 selfloop transitions, 3 changer transitions 0/132 dead transitions. [2024-02-07 19:00:34,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 132 transitions, 724 flow [2024-02-07 19:00:34,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:00:34,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:00:34,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2024-02-07 19:00:34,761 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5170603674540682 [2024-02-07 19:00:34,761 INFO L175 Difference]: Start difference. First operand has 104 places, 105 transitions, 419 flow. Second operand 3 states and 197 transitions. [2024-02-07 19:00:34,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 132 transitions, 724 flow [2024-02-07 19:00:34,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 132 transitions, 718 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:00:34,771 INFO L231 Difference]: Finished difference. Result has 106 places, 106 transitions, 447 flow [2024-02-07 19:00:34,772 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=447, PETRI_PLACES=106, PETRI_TRANSITIONS=106} [2024-02-07 19:00:34,772 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -12 predicate places. [2024-02-07 19:00:34,773 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 106 transitions, 447 flow [2024-02-07 19:00:34,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2024-02-07 19:00:34,773 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:00:34,773 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:00:34,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-02-07 19:00:34,774 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 19:00:34,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:00:34,774 INFO L85 PathProgramCache]: Analyzing trace with hash -285581468, now seen corresponding path program 1 times [2024-02-07 19:00:34,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:00:34,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699330015] [2024-02-07 19:00:34,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:00:34,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:00:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:00:34,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:00:34,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:00:34,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699330015] [2024-02-07 19:00:34,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699330015] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:00:34,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:00:34,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:00:34,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137065445] [2024-02-07 19:00:34,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:00:34,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:00:34,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:00:34,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:00:34,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:00:34,854 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 127 [2024-02-07 19:00:34,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 106 transitions, 447 flow. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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) [2024-02-07 19:00:34,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:00:34,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 127 [2024-02-07 19:00:34,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:00:35,573 INFO L124 PetriNetUnfolderBase]: 3590/7120 cut-off events. [2024-02-07 19:00:35,573 INFO L125 PetriNetUnfolderBase]: For 7388/7410 co-relation queries the response was YES. [2024-02-07 19:00:35,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18257 conditions, 7120 events. 3590/7120 cut-off events. For 7388/7410 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 54218 event pairs, 1696 based on Foata normal form. 220/6796 useless extension candidates. Maximal degree in co-relation 18243. Up to 3784 conditions per place. [2024-02-07 19:00:35,616 INFO L140 encePairwiseOnDemand]: 113/127 looper letters, 145 selfloop transitions, 16 changer transitions 0/187 dead transitions. [2024-02-07 19:00:35,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 187 transitions, 1108 flow [2024-02-07 19:00:35,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 19:00:35,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 19:00:35,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 301 transitions. [2024-02-07 19:00:35,618 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47401574803149604 [2024-02-07 19:00:35,618 INFO L175 Difference]: Start difference. First operand has 106 places, 106 transitions, 447 flow. Second operand 5 states and 301 transitions. [2024-02-07 19:00:35,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 187 transitions, 1108 flow [2024-02-07 19:00:35,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 187 transitions, 1096 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-02-07 19:00:35,630 INFO L231 Difference]: Finished difference. Result has 113 places, 119 transitions, 614 flow [2024-02-07 19:00:35,630 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=614, PETRI_PLACES=113, PETRI_TRANSITIONS=119} [2024-02-07 19:00:35,630 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -5 predicate places. [2024-02-07 19:00:35,630 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 119 transitions, 614 flow [2024-02-07 19:00:35,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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) [2024-02-07 19:00:35,630 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:00:35,631 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:00:35,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-02-07 19:00:35,631 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 19:00:35,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:00:35,631 INFO L85 PathProgramCache]: Analyzing trace with hash 58496074, now seen corresponding path program 1 times [2024-02-07 19:00:35,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:00:35,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112545879] [2024-02-07 19:00:35,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:00:35,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:00:35,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:00:35,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:00:35,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:00:35,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112545879] [2024-02-07 19:00:35,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112545879] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:00:35,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:00:35,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:00:35,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631522925] [2024-02-07 19:00:35,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:00:35,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:00:35,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:00:35,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:00:35,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:00:35,663 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 127 [2024-02-07 19:00:35,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 119 transitions, 614 flow. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-02-07 19:00:35,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:00:35,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 127 [2024-02-07 19:00:35,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:00:36,458 INFO L124 PetriNetUnfolderBase]: 4380/8616 cut-off events. [2024-02-07 19:00:36,458 INFO L125 PetriNetUnfolderBase]: For 11316/11334 co-relation queries the response was YES. [2024-02-07 19:00:36,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22974 conditions, 8616 events. 4380/8616 cut-off events. For 11316/11334 co-relation queries the response was YES. Maximal size of possible extension queue 396. Compared 67601 event pairs, 1804 based on Foata normal form. 386/8844 useless extension candidates. Maximal degree in co-relation 22957. Up to 4205 conditions per place. [2024-02-07 19:00:36,560 INFO L140 encePairwiseOnDemand]: 119/127 looper letters, 131 selfloop transitions, 3 changer transitions 7/167 dead transitions. [2024-02-07 19:00:36,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 167 transitions, 1165 flow [2024-02-07 19:00:36,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:00:36,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:00:36,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 196 transitions. [2024-02-07 19:00:36,572 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5144356955380578 [2024-02-07 19:00:36,572 INFO L175 Difference]: Start difference. First operand has 113 places, 119 transitions, 614 flow. Second operand 3 states and 196 transitions. [2024-02-07 19:00:36,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 167 transitions, 1165 flow [2024-02-07 19:00:36,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 167 transitions, 1161 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-02-07 19:00:36,589 INFO L231 Difference]: Finished difference. Result has 117 places, 114 transitions, 588 flow [2024-02-07 19:00:36,589 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=588, PETRI_PLACES=117, PETRI_TRANSITIONS=114} [2024-02-07 19:00:36,590 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -1 predicate places. [2024-02-07 19:00:36,590 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 114 transitions, 588 flow [2024-02-07 19:00:36,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-02-07 19:00:36,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:00:36,590 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:00:36,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-02-07 19:00:36,591 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 19:00:36,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:00:36,591 INFO L85 PathProgramCache]: Analyzing trace with hash 508517411, now seen corresponding path program 1 times [2024-02-07 19:00:36,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:00:36,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808194308] [2024-02-07 19:00:36,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:00:36,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:00:36,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:00:36,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:00:36,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:00:36,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808194308] [2024-02-07 19:00:36,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808194308] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:00:36,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:00:36,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-07 19:00:36,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656404409] [2024-02-07 19:00:36,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:00:36,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:00:36,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:00:36,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:00:36,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:00:36,928 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 127 [2024-02-07 19:00:36,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 114 transitions, 588 flow. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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) [2024-02-07 19:00:36,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:00:36,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 127 [2024-02-07 19:00:36,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:00:38,070 INFO L124 PetriNetUnfolderBase]: 3800/7284 cut-off events. [2024-02-07 19:00:38,070 INFO L125 PetriNetUnfolderBase]: For 9896/9978 co-relation queries the response was YES. [2024-02-07 19:00:38,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20370 conditions, 7284 events. 3800/7284 cut-off events. For 9896/9978 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 53027 event pairs, 1174 based on Foata normal form. 174/7294 useless extension candidates. Maximal degree in co-relation 20351. Up to 2250 conditions per place. [2024-02-07 19:00:38,132 INFO L140 encePairwiseOnDemand]: 108/127 looper letters, 164 selfloop transitions, 26 changer transitions 1/221 dead transitions. [2024-02-07 19:00:38,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 221 transitions, 1512 flow [2024-02-07 19:00:38,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 19:00:38,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 19:00:38,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 326 transitions. [2024-02-07 19:00:38,157 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5133858267716536 [2024-02-07 19:00:38,157 INFO L175 Difference]: Start difference. First operand has 117 places, 114 transitions, 588 flow. Second operand 5 states and 326 transitions. [2024-02-07 19:00:38,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 221 transitions, 1512 flow [2024-02-07 19:00:38,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 221 transitions, 1502 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 19:00:38,185 INFO L231 Difference]: Finished difference. Result has 123 places, 134 transitions, 779 flow [2024-02-07 19:00:38,185 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=779, PETRI_PLACES=123, PETRI_TRANSITIONS=134} [2024-02-07 19:00:38,186 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, 5 predicate places. [2024-02-07 19:00:38,186 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 134 transitions, 779 flow [2024-02-07 19:00:38,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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) [2024-02-07 19:00:38,186 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:00:38,186 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:00:38,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-02-07 19:00:38,187 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 19:00:38,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:00:38,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1931686367, now seen corresponding path program 2 times [2024-02-07 19:00:38,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:00:38,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954338063] [2024-02-07 19:00:38,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:00:38,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:00:38,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:00:38,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:00:38,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:00:38,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954338063] [2024-02-07 19:00:38,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954338063] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:00:38,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:00:38,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:00:38,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946437203] [2024-02-07 19:00:38,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:00:38,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:00:38,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:00:38,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:00:38,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:00:38,311 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 127 [2024-02-07 19:00:38,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 134 transitions, 779 flow. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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) [2024-02-07 19:00:38,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:00:38,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 127 [2024-02-07 19:00:38,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:00:39,100 INFO L124 PetriNetUnfolderBase]: 3953/7553 cut-off events. [2024-02-07 19:00:39,102 INFO L125 PetriNetUnfolderBase]: For 15343/15433 co-relation queries the response was YES. [2024-02-07 19:00:39,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24486 conditions, 7553 events. 3953/7553 cut-off events. For 15343/15433 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 54859 event pairs, 1372 based on Foata normal form. 70/7471 useless extension candidates. Maximal degree in co-relation 24464. Up to 6373 conditions per place. [2024-02-07 19:00:39,197 INFO L140 encePairwiseOnDemand]: 125/127 looper letters, 124 selfloop transitions, 3 changer transitions 0/156 dead transitions. [2024-02-07 19:00:39,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 156 transitions, 1135 flow [2024-02-07 19:00:39,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:00:39,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:00:39,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 179 transitions. [2024-02-07 19:00:39,200 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46981627296587924 [2024-02-07 19:00:39,200 INFO L175 Difference]: Start difference. First operand has 123 places, 134 transitions, 779 flow. Second operand 3 states and 179 transitions. [2024-02-07 19:00:39,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 156 transitions, 1135 flow [2024-02-07 19:00:39,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 156 transitions, 1135 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-07 19:00:39,246 INFO L231 Difference]: Finished difference. Result has 124 places, 133 transitions, 775 flow [2024-02-07 19:00:39,247 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=769, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=775, PETRI_PLACES=124, PETRI_TRANSITIONS=133} [2024-02-07 19:00:39,248 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, 6 predicate places. [2024-02-07 19:00:39,248 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 133 transitions, 775 flow [2024-02-07 19:00:39,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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) [2024-02-07 19:00:39,248 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:00:39,248 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:00:39,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-02-07 19:00:39,249 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 19:00:39,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:00:39,249 INFO L85 PathProgramCache]: Analyzing trace with hash -72743910, now seen corresponding path program 1 times [2024-02-07 19:00:39,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:00:39,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340536143] [2024-02-07 19:00:39,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:00:39,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:00:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:00:39,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:00:39,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:00:39,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340536143] [2024-02-07 19:00:39,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340536143] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:00:39,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:00:39,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:00:39,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924958443] [2024-02-07 19:00:39,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:00:39,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:00:39,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:00:39,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:00:39,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:00:39,337 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 127 [2024-02-07 19:00:39,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 133 transitions, 775 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-02-07 19:00:39,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:00:39,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 127 [2024-02-07 19:00:39,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:00:40,151 INFO L124 PetriNetUnfolderBase]: 3288/6634 cut-off events. [2024-02-07 19:00:40,151 INFO L125 PetriNetUnfolderBase]: For 13455/13599 co-relation queries the response was YES. [2024-02-07 19:00:40,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20963 conditions, 6634 events. 3288/6634 cut-off events. For 13455/13599 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 48994 event pairs, 1524 based on Foata normal form. 334/6834 useless extension candidates. Maximal degree in co-relation 20940. Up to 3718 conditions per place. [2024-02-07 19:00:40,184 INFO L140 encePairwiseOnDemand]: 116/127 looper letters, 122 selfloop transitions, 5 changer transitions 0/160 dead transitions. [2024-02-07 19:00:40,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 160 transitions, 1171 flow [2024-02-07 19:00:40,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:00:40,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:00:40,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 196 transitions. [2024-02-07 19:00:40,209 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5144356955380578 [2024-02-07 19:00:40,209 INFO L175 Difference]: Start difference. First operand has 124 places, 133 transitions, 775 flow. Second operand 3 states and 196 transitions. [2024-02-07 19:00:40,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 160 transitions, 1171 flow [2024-02-07 19:00:40,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 160 transitions, 1168 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:00:40,256 INFO L231 Difference]: Finished difference. Result has 126 places, 132 transitions, 791 flow [2024-02-07 19:00:40,256 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=791, PETRI_PLACES=126, PETRI_TRANSITIONS=132} [2024-02-07 19:00:40,257 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, 8 predicate places. [2024-02-07 19:00:40,257 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 132 transitions, 791 flow [2024-02-07 19:00:40,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-02-07 19:00:40,258 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:00:40,258 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:00:40,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-02-07 19:00:40,258 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 19:00:40,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:00:40,258 INFO L85 PathProgramCache]: Analyzing trace with hash 573404247, now seen corresponding path program 1 times [2024-02-07 19:00:40,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:00:40,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220271727] [2024-02-07 19:00:40,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:00:40,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:00:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:00:40,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:00:40,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:00:40,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220271727] [2024-02-07 19:00:40,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220271727] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:00:40,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:00:40,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:00:40,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845663007] [2024-02-07 19:00:40,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:00:40,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:00:40,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:00:40,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:00:40,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:00:40,309 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 127 [2024-02-07 19:00:40,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 132 transitions, 791 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-02-07 19:00:40,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:00:40,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 127 [2024-02-07 19:00:40,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:00:40,966 INFO L124 PetriNetUnfolderBase]: 2911/5793 cut-off events. [2024-02-07 19:00:40,966 INFO L125 PetriNetUnfolderBase]: For 11559/11679 co-relation queries the response was YES. [2024-02-07 19:00:40,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18060 conditions, 5793 events. 2911/5793 cut-off events. For 11559/11679 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 41253 event pairs, 1637 based on Foata normal form. 176/5809 useless extension candidates. Maximal degree in co-relation 18036. Up to 4099 conditions per place. [2024-02-07 19:00:41,011 INFO L140 encePairwiseOnDemand]: 116/127 looper letters, 110 selfloop transitions, 4 changer transitions 1/148 dead transitions. [2024-02-07 19:00:41,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 148 transitions, 1061 flow [2024-02-07 19:00:41,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:00:41,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:00:41,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 185 transitions. [2024-02-07 19:00:41,014 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48556430446194226 [2024-02-07 19:00:41,014 INFO L175 Difference]: Start difference. First operand has 126 places, 132 transitions, 791 flow. Second operand 3 states and 185 transitions. [2024-02-07 19:00:41,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 148 transitions, 1061 flow [2024-02-07 19:00:41,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 148 transitions, 1030 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-02-07 19:00:41,069 INFO L231 Difference]: Finished difference. Result has 113 places, 123 transitions, 678 flow [2024-02-07 19:00:41,070 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=678, PETRI_PLACES=113, PETRI_TRANSITIONS=123} [2024-02-07 19:00:41,071 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -5 predicate places. [2024-02-07 19:00:41,072 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 123 transitions, 678 flow [2024-02-07 19:00:41,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-02-07 19:00:41,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:00:41,072 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:00:41,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-02-07 19:00:41,072 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 19:00:41,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:00:41,073 INFO L85 PathProgramCache]: Analyzing trace with hash -115786802, now seen corresponding path program 1 times [2024-02-07 19:00:41,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:00:41,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056253977] [2024-02-07 19:00:41,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:00:41,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:00:41,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:00:41,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:00:41,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:00:41,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056253977] [2024-02-07 19:00:41,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056253977] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:00:41,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:00:41,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-07 19:00:41,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292735284] [2024-02-07 19:00:41,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:00:41,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:00:41,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:00:41,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:00:41,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:00:41,190 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 127 [2024-02-07 19:00:41,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 123 transitions, 678 flow. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 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) [2024-02-07 19:00:41,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:00:41,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 127 [2024-02-07 19:00:41,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:00:42,115 INFO L124 PetriNetUnfolderBase]: 4146/7978 cut-off events. [2024-02-07 19:00:42,116 INFO L125 PetriNetUnfolderBase]: For 12879/12949 co-relation queries the response was YES. [2024-02-07 19:00:42,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24412 conditions, 7978 events. 4146/7978 cut-off events. For 12879/12949 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 58070 event pairs, 1841 based on Foata normal form. 222/7891 useless extension candidates. Maximal degree in co-relation 24392. Up to 4719 conditions per place. [2024-02-07 19:00:42,165 INFO L140 encePairwiseOnDemand]: 110/127 looper letters, 170 selfloop transitions, 24 changer transitions 2/222 dead transitions. [2024-02-07 19:00:42,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 222 transitions, 1635 flow [2024-02-07 19:00:42,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 19:00:42,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 19:00:42,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 288 transitions. [2024-02-07 19:00:42,176 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45354330708661417 [2024-02-07 19:00:42,176 INFO L175 Difference]: Start difference. First operand has 113 places, 123 transitions, 678 flow. Second operand 5 states and 288 transitions. [2024-02-07 19:00:42,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 222 transitions, 1635 flow [2024-02-07 19:00:42,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 222 transitions, 1629 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:00:42,216 INFO L231 Difference]: Finished difference. Result has 120 places, 142 transitions, 929 flow [2024-02-07 19:00:42,217 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=929, PETRI_PLACES=120, PETRI_TRANSITIONS=142} [2024-02-07 19:00:42,217 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, 2 predicate places. [2024-02-07 19:00:42,217 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 142 transitions, 929 flow [2024-02-07 19:00:42,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 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) [2024-02-07 19:00:42,218 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:00:42,218 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:00:42,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-02-07 19:00:42,218 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 19:00:42,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:00:42,219 INFO L85 PathProgramCache]: Analyzing trace with hash -454199862, now seen corresponding path program 2 times [2024-02-07 19:00:42,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:00:42,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532762799] [2024-02-07 19:00:42,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:00:42,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:00:42,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:00:42,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:00:42,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:00:42,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532762799] [2024-02-07 19:00:42,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532762799] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:00:42,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:00:42,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:00:42,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400328681] [2024-02-07 19:00:42,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:00:42,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:00:42,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:00:42,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:00:42,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:00:42,286 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 127 [2024-02-07 19:00:42,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 142 transitions, 929 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-02-07 19:00:42,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:00:42,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 127 [2024-02-07 19:00:42,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:00:42,909 INFO L124 PetriNetUnfolderBase]: 2997/6207 cut-off events. [2024-02-07 19:00:42,909 INFO L125 PetriNetUnfolderBase]: For 14586/14736 co-relation queries the response was YES. [2024-02-07 19:00:42,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20427 conditions, 6207 events. 2997/6207 cut-off events. For 14586/14736 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 45896 event pairs, 1244 based on Foata normal form. 342/6417 useless extension candidates. Maximal degree in co-relation 20404. Up to 3038 conditions per place. [2024-02-07 19:00:42,980 INFO L140 encePairwiseOnDemand]: 116/127 looper letters, 132 selfloop transitions, 3 changer transitions 6/176 dead transitions. [2024-02-07 19:00:42,980 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 176 transitions, 1424 flow [2024-02-07 19:00:42,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:00:42,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:00:42,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 187 transitions. [2024-02-07 19:00:42,982 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49081364829396323 [2024-02-07 19:00:42,982 INFO L175 Difference]: Start difference. First operand has 120 places, 142 transitions, 929 flow. Second operand 3 states and 187 transitions. [2024-02-07 19:00:42,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 176 transitions, 1424 flow [2024-02-07 19:00:43,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 176 transitions, 1410 flow, removed 7 selfloop flow, removed 0 redundant places. [2024-02-07 19:00:43,031 INFO L231 Difference]: Finished difference. Result has 123 places, 137 transitions, 908 flow [2024-02-07 19:00:43,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=908, PETRI_PLACES=123, PETRI_TRANSITIONS=137} [2024-02-07 19:00:43,037 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, 5 predicate places. [2024-02-07 19:00:43,037 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 137 transitions, 908 flow [2024-02-07 19:00:43,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-02-07 19:00:43,038 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:00:43,038 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:00:43,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-02-07 19:00:43,038 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 19:00:43,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:00:43,039 INFO L85 PathProgramCache]: Analyzing trace with hash -416167605, now seen corresponding path program 1 times [2024-02-07 19:00:43,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:00:43,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484894850] [2024-02-07 19:00:43,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:00:43,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:00:43,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:00:43,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:00:43,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:00:43,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484894850] [2024-02-07 19:00:43,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484894850] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:00:43,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:00:43,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:00:43,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786345331] [2024-02-07 19:00:43,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:00:43,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:00:43,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:00:43,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:00:43,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:00:43,116 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 127 [2024-02-07 19:00:43,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 137 transitions, 908 flow. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 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) [2024-02-07 19:00:43,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:00:43,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 127 [2024-02-07 19:00:43,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:00:43,889 INFO L124 PetriNetUnfolderBase]: 3394/7108 cut-off events. [2024-02-07 19:00:43,889 INFO L125 PetriNetUnfolderBase]: For 16800/16936 co-relation queries the response was YES. [2024-02-07 19:00:43,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23425 conditions, 7108 events. 3394/7108 cut-off events. For 16800/16936 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 54867 event pairs, 847 based on Foata normal form. 214/7194 useless extension candidates. Maximal degree in co-relation 23400. Up to 3616 conditions per place. [2024-02-07 19:00:43,935 INFO L140 encePairwiseOnDemand]: 110/127 looper letters, 151 selfloop transitions, 21 changer transitions 23/222 dead transitions. [2024-02-07 19:00:43,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 222 transitions, 1846 flow [2024-02-07 19:00:43,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 19:00:43,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 19:00:43,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 287 transitions. [2024-02-07 19:00:43,939 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4519685039370079 [2024-02-07 19:00:43,939 INFO L175 Difference]: Start difference. First operand has 123 places, 137 transitions, 908 flow. Second operand 5 states and 287 transitions. [2024-02-07 19:00:43,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 222 transitions, 1846 flow [2024-02-07 19:00:43,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 222 transitions, 1804 flow, removed 11 selfloop flow, removed 2 redundant places. [2024-02-07 19:00:44,005 INFO L231 Difference]: Finished difference. Result has 128 places, 144 transitions, 1057 flow [2024-02-07 19:00:44,006 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=821, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1057, PETRI_PLACES=128, PETRI_TRANSITIONS=144} [2024-02-07 19:00:44,006 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, 10 predicate places. [2024-02-07 19:00:44,006 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 144 transitions, 1057 flow [2024-02-07 19:00:44,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 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) [2024-02-07 19:00:44,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:00:44,007 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:00:44,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-02-07 19:00:44,007 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 19:00:44,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:00:44,008 INFO L85 PathProgramCache]: Analyzing trace with hash 733787727, now seen corresponding path program 2 times [2024-02-07 19:00:44,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:00:44,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520237051] [2024-02-07 19:00:44,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:00:44,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:00:44,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:00:44,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:00:44,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:00:44,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520237051] [2024-02-07 19:00:44,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520237051] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:00:44,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:00:44,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:00:44,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012552599] [2024-02-07 19:00:44,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:00:44,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:00:44,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:00:44,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:00:44,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:00:44,091 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 127 [2024-02-07 19:00:44,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 144 transitions, 1057 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-02-07 19:00:44,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:00:44,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 127 [2024-02-07 19:00:44,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:00:45,024 INFO L124 PetriNetUnfolderBase]: 2754/6022 cut-off events. [2024-02-07 19:00:45,024 INFO L125 PetriNetUnfolderBase]: For 15129/15213 co-relation queries the response was YES. [2024-02-07 19:00:45,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19835 conditions, 6022 events. 2754/6022 cut-off events. For 15129/15213 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 46442 event pairs, 1679 based on Foata normal form. 112/5992 useless extension candidates. Maximal degree in co-relation 19807. Up to 4173 conditions per place. [2024-02-07 19:00:45,058 INFO L140 encePairwiseOnDemand]: 116/127 looper letters, 127 selfloop transitions, 2 changer transitions 1/163 dead transitions. [2024-02-07 19:00:45,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 163 transitions, 1400 flow [2024-02-07 19:00:45,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:00:45,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:00:45,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2024-02-07 19:00:45,062 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4671916010498688 [2024-02-07 19:00:45,062 INFO L175 Difference]: Start difference. First operand has 128 places, 144 transitions, 1057 flow. Second operand 3 states and 178 transitions. [2024-02-07 19:00:45,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 163 transitions, 1400 flow [2024-02-07 19:00:45,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 163 transitions, 1387 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-02-07 19:00:45,110 INFO L231 Difference]: Finished difference. Result has 118 places, 134 transitions, 952 flow [2024-02-07 19:00:45,111 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=960, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=952, PETRI_PLACES=118, PETRI_TRANSITIONS=134} [2024-02-07 19:00:45,111 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, 0 predicate places. [2024-02-07 19:00:45,111 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 134 transitions, 952 flow [2024-02-07 19:00:45,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-02-07 19:00:45,111 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:00:45,112 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:00:45,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-02-07 19:00:45,112 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thr2Err18ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 19:00:45,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:00:45,113 INFO L85 PathProgramCache]: Analyzing trace with hash -454229582, now seen corresponding path program 1 times [2024-02-07 19:00:45,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:00:45,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572282700] [2024-02-07 19:00:45,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:00:45,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:00:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:00:45,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:00:45,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:00:45,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572282700] [2024-02-07 19:00:45,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572282700] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:00:45,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:00:45,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:00:45,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11468090] [2024-02-07 19:00:45,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:00:45,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:00:45,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:00:45,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:00:45,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:00:45,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 127 [2024-02-07 19:00:45,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 134 transitions, 952 flow. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-02-07 19:00:45,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:00:45,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 127 [2024-02-07 19:00:45,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:00:45,849 INFO L124 PetriNetUnfolderBase]: 2282/4696 cut-off events. [2024-02-07 19:00:45,850 INFO L125 PetriNetUnfolderBase]: For 12099/12193 co-relation queries the response was YES. [2024-02-07 19:00:45,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16355 conditions, 4696 events. 2282/4696 cut-off events. For 12099/12193 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 32599 event pairs, 1159 based on Foata normal form. 286/4934 useless extension candidates. Maximal degree in co-relation 16329. Up to 3263 conditions per place. [2024-02-07 19:00:45,880 INFO L140 encePairwiseOnDemand]: 120/127 looper letters, 100 selfloop transitions, 2 changer transitions 36/165 dead transitions. [2024-02-07 19:00:45,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 165 transitions, 1439 flow [2024-02-07 19:00:45,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:00:45,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:00:45,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 163 transitions. [2024-02-07 19:00:45,886 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42782152230971127 [2024-02-07 19:00:45,887 INFO L175 Difference]: Start difference. First operand has 118 places, 134 transitions, 952 flow. Second operand 3 states and 163 transitions. [2024-02-07 19:00:45,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 165 transitions, 1439 flow [2024-02-07 19:00:45,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 165 transitions, 1407 flow, removed 9 selfloop flow, removed 3 redundant places. [2024-02-07 19:00:45,945 INFO L231 Difference]: Finished difference. Result has 114 places, 112 transitions, 753 flow [2024-02-07 19:00:45,945 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=911, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=753, PETRI_PLACES=114, PETRI_TRANSITIONS=112} [2024-02-07 19:00:45,946 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -4 predicate places. [2024-02-07 19:00:45,946 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 112 transitions, 753 flow [2024-02-07 19:00:45,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-02-07 19:00:45,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:00:45,946 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:00:45,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-02-07 19:00:45,946 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thr1Err20ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 19:00:45,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:00:45,947 INFO L85 PathProgramCache]: Analyzing trace with hash -112056151, now seen corresponding path program 1 times [2024-02-07 19:00:45,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:00:45,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643843437] [2024-02-07 19:00:45,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:00:45,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:00:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:00:46,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:00:46,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:00:46,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643843437] [2024-02-07 19:00:46,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643843437] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:00:46,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:00:46,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-07 19:00:46,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702632568] [2024-02-07 19:00:46,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:00:46,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:00:46,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:00:46,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:00:46,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:00:46,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 127 [2024-02-07 19:00:46,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 112 transitions, 753 flow. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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) [2024-02-07 19:00:46,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:00:46,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 127 [2024-02-07 19:00:46,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:00:46,779 INFO L124 PetriNetUnfolderBase]: 1733/3491 cut-off events. [2024-02-07 19:00:46,779 INFO L125 PetriNetUnfolderBase]: For 9815/9867 co-relation queries the response was YES. [2024-02-07 19:00:46,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12636 conditions, 3491 events. 1733/3491 cut-off events. For 9815/9867 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 22900 event pairs, 698 based on Foata normal form. 68/3519 useless extension candidates. Maximal degree in co-relation 12611. Up to 1866 conditions per place. [2024-02-07 19:00:46,802 INFO L140 encePairwiseOnDemand]: 111/127 looper letters, 0 selfloop transitions, 0 changer transitions 181/181 dead transitions. [2024-02-07 19:00:46,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 181 transitions, 1560 flow [2024-02-07 19:00:46,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 19:00:46,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 19:00:46,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 266 transitions. [2024-02-07 19:00:46,812 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4188976377952756 [2024-02-07 19:00:46,812 INFO L175 Difference]: Start difference. First operand has 114 places, 112 transitions, 753 flow. Second operand 5 states and 266 transitions. [2024-02-07 19:00:46,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 181 transitions, 1560 flow [2024-02-07 19:00:46,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 181 transitions, 1503 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-02-07 19:00:46,865 INFO L231 Difference]: Finished difference. Result has 110 places, 0 transitions, 0 flow [2024-02-07 19:00:46,865 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=110, PETRI_TRANSITIONS=0} [2024-02-07 19:00:46,866 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -8 predicate places. [2024-02-07 19:00:46,866 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 0 transitions, 0 flow [2024-02-07 19:00:46,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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) [2024-02-07 19:00:46,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (105 of 106 remaining) [2024-02-07 19:00:46,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (104 of 106 remaining) [2024-02-07 19:00:46,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (103 of 106 remaining) [2024-02-07 19:00:46,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (102 of 106 remaining) [2024-02-07 19:00:46,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (101 of 106 remaining) [2024-02-07 19:00:46,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (100 of 106 remaining) [2024-02-07 19:00:46,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (99 of 106 remaining) [2024-02-07 19:00:46,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (98 of 106 remaining) [2024-02-07 19:00:46,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (97 of 106 remaining) [2024-02-07 19:00:46,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err13ASSERT_VIOLATIONWITNESS_INVARIANT (96 of 106 remaining) [2024-02-07 19:00:46,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (95 of 106 remaining) [2024-02-07 19:00:46,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (94 of 106 remaining) [2024-02-07 19:00:46,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err14ASSERT_VIOLATIONWITNESS_INVARIANT (93 of 106 remaining) [2024-02-07 19:00:46,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err15ASSERT_VIOLATIONWITNESS_INVARIANT (92 of 106 remaining) [2024-02-07 19:00:46,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (91 of 106 remaining) [2024-02-07 19:00:46,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (90 of 106 remaining) [2024-02-07 19:00:46,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err16ASSERT_VIOLATIONWITNESS_INVARIANT (89 of 106 remaining) [2024-02-07 19:00:46,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err17ASSERT_VIOLATIONWITNESS_INVARIANT (88 of 106 remaining) [2024-02-07 19:00:46,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err18ASSERT_VIOLATIONWITNESS_INVARIANT (87 of 106 remaining) [2024-02-07 19:00:46,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err19ASSERT_VIOLATIONWITNESS_INVARIANT (86 of 106 remaining) [2024-02-07 19:00:46,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err21ASSERT_VIOLATIONWITNESS_INVARIANT (85 of 106 remaining) [2024-02-07 19:00:46,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err22ASSERT_VIOLATIONWITNESS_INVARIANT (84 of 106 remaining) [2024-02-07 19:00:46,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err20ASSERT_VIOLATIONERROR_FUNCTION (83 of 106 remaining) [2024-02-07 19:00:46,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err23ASSERT_VIOLATIONWITNESS_INVARIANT (82 of 106 remaining) [2024-02-07 19:00:46,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err24ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 106 remaining) [2024-02-07 19:00:46,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err25ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 106 remaining) [2024-02-07 19:00:46,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 106 remaining) [2024-02-07 19:00:46,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 106 remaining) [2024-02-07 19:00:46,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 106 remaining) [2024-02-07 19:00:46,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 106 remaining) [2024-02-07 19:00:46,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 106 remaining) [2024-02-07 19:00:46,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 106 remaining) [2024-02-07 19:00:46,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 106 remaining) [2024-02-07 19:00:46,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 106 remaining) [2024-02-07 19:00:46,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 106 remaining) [2024-02-07 19:00:46,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 106 remaining) [2024-02-07 19:00:46,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 106 remaining) [2024-02-07 19:00:46,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 106 remaining) [2024-02-07 19:00:46,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 106 remaining) [2024-02-07 19:00:46,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 106 remaining) [2024-02-07 19:00:46,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 106 remaining) [2024-02-07 19:00:46,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 106 remaining) [2024-02-07 19:00:46,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 106 remaining) [2024-02-07 19:00:46,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 106 remaining) [2024-02-07 19:00:46,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 106 remaining) [2024-02-07 19:00:46,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 106 remaining) [2024-02-07 19:00:46,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 106 remaining) [2024-02-07 19:00:46,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 106 remaining) [2024-02-07 19:00:46,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err20ASSERT_VIOLATIONERROR_FUNCTION (57 of 106 remaining) [2024-02-07 19:00:46,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 106 remaining) [2024-02-07 19:00:46,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 106 remaining) [2024-02-07 19:00:46,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 106 remaining) [2024-02-07 19:00:46,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (53 of 106 remaining) [2024-02-07 19:00:46,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 106 remaining) [2024-02-07 19:00:46,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 106 remaining) [2024-02-07 19:00:46,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 106 remaining) [2024-02-07 19:00:46,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 106 remaining) [2024-02-07 19:00:46,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 106 remaining) [2024-02-07 19:00:46,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 106 remaining) [2024-02-07 19:00:46,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 106 remaining) [2024-02-07 19:00:46,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 106 remaining) [2024-02-07 19:00:46,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 106 remaining) [2024-02-07 19:00:46,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 106 remaining) [2024-02-07 19:00:46,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err13ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 106 remaining) [2024-02-07 19:00:46,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 106 remaining) [2024-02-07 19:00:46,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 106 remaining) [2024-02-07 19:00:46,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err14ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 106 remaining) [2024-02-07 19:00:46,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err15ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 106 remaining) [2024-02-07 19:00:46,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 106 remaining) [2024-02-07 19:00:46,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 106 remaining) [2024-02-07 19:00:46,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err16ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 106 remaining) [2024-02-07 19:00:46,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err17ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 106 remaining) [2024-02-07 19:00:46,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err18ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 106 remaining) [2024-02-07 19:00:46,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err19ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 106 remaining) [2024-02-07 19:00:46,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err21ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 106 remaining) [2024-02-07 19:00:46,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err22ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 106 remaining) [2024-02-07 19:00:46,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err20ASSERT_VIOLATIONERROR_FUNCTION (29 of 106 remaining) [2024-02-07 19:00:46,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err23ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 106 remaining) [2024-02-07 19:00:46,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err24ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 106 remaining) [2024-02-07 19:00:46,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err25ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 106 remaining) [2024-02-07 19:00:46,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 106 remaining) [2024-02-07 19:00:46,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 106 remaining) [2024-02-07 19:00:46,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 106 remaining) [2024-02-07 19:00:46,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 106 remaining) [2024-02-07 19:00:46,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 106 remaining) [2024-02-07 19:00:46,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 106 remaining) [2024-02-07 19:00:46,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 106 remaining) [2024-02-07 19:00:46,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 106 remaining) [2024-02-07 19:00:46,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 106 remaining) [2024-02-07 19:00:46,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 106 remaining) [2024-02-07 19:00:46,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 106 remaining) [2024-02-07 19:00:46,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 106 remaining) [2024-02-07 19:00:46,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 106 remaining) [2024-02-07 19:00:46,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 106 remaining) [2024-02-07 19:00:46,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 106 remaining) [2024-02-07 19:00:46,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 106 remaining) [2024-02-07 19:00:46,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 106 remaining) [2024-02-07 19:00:46,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 106 remaining) [2024-02-07 19:00:46,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 106 remaining) [2024-02-07 19:00:46,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 106 remaining) [2024-02-07 19:00:46,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 106 remaining) [2024-02-07 19:00:46,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 106 remaining) [2024-02-07 19:00:46,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err20ASSERT_VIOLATIONERROR_FUNCTION (3 of 106 remaining) [2024-02-07 19:00:46,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 106 remaining) [2024-02-07 19:00:46,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 106 remaining) [2024-02-07 19:00:46,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 106 remaining) [2024-02-07 19:00:46,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-02-07 19:00:46,921 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:00:46,926 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-07 19:00:46,927 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-07 19:00:46,938 INFO L503 ceAbstractionStarter]: Automizer considered 50 witness invariants [2024-02-07 19:00:46,939 INFO L504 ceAbstractionStarter]: WitnessConsidered=50 [2024-02-07 19:00:46,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 07:00:46 BasicIcfg [2024-02-07 19:00:46,939 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-07 19:00:46,944 INFO L158 Benchmark]: Toolchain (without parser) took 20569.59ms. Allocated memory was 155.2MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 91.0MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 581.8MB. Max. memory is 16.1GB. [2024-02-07 19:00:46,944 INFO L158 Benchmark]: Witness Parser took 0.21ms. Allocated memory is still 155.2MB. Free memory was 118.6MB in the beginning and 118.5MB in the end (delta: 31.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 19:00:46,944 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 155.2MB. Free memory was 109.9MB in the beginning and 109.7MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 19:00:46,945 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1092.75ms. Allocated memory was 155.2MB in the beginning and 213.9MB in the end (delta: 58.7MB). Free memory was 90.4MB in the beginning and 177.6MB in the end (delta: -87.2MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. [2024-02-07 19:00:46,945 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.93ms. Allocated memory is still 213.9MB. Free memory was 177.6MB in the beginning and 175.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 19:00:46,945 INFO L158 Benchmark]: Boogie Preprocessor took 84.85ms. Allocated memory is still 213.9MB. Free memory was 175.5MB in the beginning and 172.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 19:00:46,945 INFO L158 Benchmark]: RCFGBuilder took 1150.70ms. Allocated memory is still 213.9MB. Free memory was 172.4MB in the beginning and 103.2MB in the end (delta: 69.2MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2024-02-07 19:00:46,945 INFO L158 Benchmark]: TraceAbstraction took 18177.36ms. Allocated memory was 213.9MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 103.2MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 534.1MB. Max. memory is 16.1GB. [2024-02-07 19:00:46,946 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.21ms. Allocated memory is still 155.2MB. Free memory was 118.6MB in the beginning and 118.5MB in the end (delta: 31.2kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.18ms. Allocated memory is still 155.2MB. Free memory was 109.9MB in the beginning and 109.7MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1092.75ms. Allocated memory was 155.2MB in the beginning and 213.9MB in the end (delta: 58.7MB). Free memory was 90.4MB in the beginning and 177.6MB in the end (delta: -87.2MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.93ms. Allocated memory is still 213.9MB. Free memory was 177.6MB in the beginning and 175.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.85ms. Allocated memory is still 213.9MB. Free memory was 175.5MB in the beginning and 172.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1150.70ms. Allocated memory is still 213.9MB. Free memory was 172.4MB in the beginning and 103.2MB in the end (delta: 69.2MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. * TraceAbstraction took 18177.36ms. Allocated memory was 213.9MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 103.2MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 534.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 762]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 765]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 768]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 769]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 773]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 775]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 776]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 777]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 780]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 792]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 782]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 783]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 794]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 795]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 786]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 787]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 798]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 799]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 802]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 802]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 804]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 805]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 802]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 808]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 809]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 813]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 705]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 708]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 711]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 712]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 716]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 718]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 719]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 720]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 723]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 735]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 725]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 726]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 737]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 738]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 729]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 730]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 741]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 742]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 745]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 745]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 747]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 748]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 745]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 751]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 752]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 756]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 224 locations, 106 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 18.0s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 16.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1121 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 992 mSDsluCounter, 101 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 238 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3464 IncrementalHoareTripleChecker+Invalid, 3702 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 238 mSolverCounterUnsat, 67 mSDtfsCounter, 3464 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1057occurred in iteration=18, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 279 NumberOfCodeBlocks, 279 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 258 ConstructedInterpolants, 0 QuantifiedInterpolants, 408 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 52 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-02-07 19:00:47,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE