./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/race-1_1-join.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8857f20b 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/ldv-races/race-1_1-join.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/race-1_1-join.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-8857f20-m [2024-01-29 22:54:10,181 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 22:54:10,244 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 22:54:10,248 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 22:54:10,249 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 22:54:10,274 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 22:54:10,277 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 22:54:10,277 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 22:54:10,278 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 22:54:10,281 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 22:54:10,281 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 22:54:10,281 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 22:54:10,282 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 22:54:10,283 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 22:54:10,283 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 22:54:10,283 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 22:54:10,284 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 22:54:10,284 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 22:54:10,284 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 22:54:10,284 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 22:54:10,284 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 22:54:10,285 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 22:54:10,285 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 22:54:10,285 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 22:54:10,285 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 22:54:10,285 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 22:54:10,286 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 22:54:10,286 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 22:54:10,286 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 22:54:10,287 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 22:54:10,287 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 22:54:10,287 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 22:54:10,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:54:10,288 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 22:54:10,288 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 22:54:10,288 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 22:54:10,288 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 22:54:10,289 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 22:54:10,289 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 22:54:10,289 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 22:54:10,289 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 22:54:10,289 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 22:54:10,289 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 22:54:10,290 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 22:54:10,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 22:54:10,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 22:54:10,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 22:54:10,503 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 22:54:10,503 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 22:54:10,504 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/race-1_1-join.yml/witness.yml [2024-01-29 22:54:10,647 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 22:54:10,647 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 22:54:10,649 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i [2024-01-29 22:54:11,845 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 22:54:12,195 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 22:54:12,196 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i [2024-01-29 22:54:12,239 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b722e7c0a/d694b03922364ec39f1573c5c78f69dc/FLAG29d077dc3 [2024-01-29 22:54:12,440 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b722e7c0a/d694b03922364ec39f1573c5c78f69dc [2024-01-29 22:54:12,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 22:54:12,442 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 22:54:12,449 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 22:54:12,449 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 22:54:12,453 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 22:54:12,454 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:54:10" (1/2) ... [2024-01-29 22:54:12,455 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45d4814d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:54:12, skipping insertion in model container [2024-01-29 22:54:12,455 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:54:10" (1/2) ... [2024-01-29 22:54:12,456 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@51178932 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:54:12, skipping insertion in model container [2024-01-29 22:54:12,456 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:54:12" (2/2) ... [2024-01-29 22:54:12,456 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45d4814d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:54:12, skipping insertion in model container [2024-01-29 22:54:12,457 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:54:12" (2/2) ... [2024-01-29 22:54:12,457 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 22:54:12,514 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 22:54:12,516 INFO L98 nessWitnessExtractor]: Location invariant before [L1693-L1693] expression == 0 [2024-01-29 22:54:12,516 INFO L98 nessWitnessExtractor]: Location invariant before [L1693-L1693] (expression == 0) && (expression == 1) [2024-01-29 22:54:12,516 INFO L98 nessWitnessExtractor]: Location invariant before [L1693-L1693] (expression == 0) && (((((((((0 <= pdev && 1 <= pdev) && pdev <= 3) && pdev <= 127) && expression == 1) && pdev % 2 == 1) && pdev != 0) && (pdev == 1 || pdev == 3)) || ((0 <= expression && expression <= 1) && (expression == 0 || expression == 1))) || ((((((((0 <= expression && 0 <= pdev) && 1 <= pdev) && expression <= 1) && pdev <= 6) && pdev <= 127) && pdev != 0) && (expression == 0 || expression == 1)) && ((pdev == 1 || pdev == 5) || pdev == 6))) [2024-01-29 22:54:12,516 INFO L98 nessWitnessExtractor]: Location invariant before [L1712-L1712] pdev == 1 [2024-01-29 22:54:12,516 INFO L98 nessWitnessExtractor]: Location invariant before [L1698-L1698] (unsigned long )arg == 0UL [2024-01-29 22:54:12,516 INFO L98 nessWitnessExtractor]: Location invariant before [L1705-L1705] pdev == 0 [2024-01-29 22:54:12,516 INFO L98 nessWitnessExtractor]: Location invariant before [L1722-L1722] (unsigned long )status == 0UL [2024-01-29 22:54:12,517 INFO L98 nessWitnessExtractor]: Location invariant before [L1720-L1720] (unsigned long )status == 0UL [2024-01-29 22:54:12,517 INFO L98 nessWitnessExtractor]: Location invariant before [L1708-L1711] pdev == 1 [2024-01-29 22:54:12,517 INFO L98 nessWitnessExtractor]: Location invariant before [L1714-L1714] pdev == 3 [2024-01-29 22:54:12,517 INFO L98 nessWitnessExtractor]: Location invariant before [L1709-L1709] pdev == 1 [2024-01-29 22:54:12,517 INFO L98 nessWitnessExtractor]: Location invariant before [L1701-L1701] (0 <= pdev) && (1 <= pdev) [2024-01-29 22:54:12,517 INFO L98 nessWitnessExtractor]: Location invariant before [L1701-L1701] ((0 <= pdev) && (1 <= pdev)) && ((unsigned long )arg == 0UL) [2024-01-29 22:54:12,517 INFO L98 nessWitnessExtractor]: Location invariant before [L1701-L1701] 0 <= pdev [2024-01-29 22:54:12,518 INFO L98 nessWitnessExtractor]: Location invariant before [L1701-L1701] ((0 <= pdev) && (1 <= pdev)) && ((pdev == 1 || pdev == 5) || pdev == 6) [2024-01-29 22:54:12,518 INFO L98 nessWitnessExtractor]: Location invariant before [L1701-L1701] ((0 <= pdev) && (1 <= pdev)) && (pdev <= 6) [2024-01-29 22:54:12,518 INFO L98 nessWitnessExtractor]: Location invariant before [L1701-L1701] ((0 <= pdev) && (1 <= pdev)) && (pdev <= 127) [2024-01-29 22:54:12,518 INFO L98 nessWitnessExtractor]: Location invariant before [L1701-L1701] ((0 <= pdev) && (1 <= pdev)) && (pdev != 0) [2024-01-29 22:54:12,518 INFO L98 nessWitnessExtractor]: Location invariant before [L1707-L1707] pdev == 1 [2024-01-29 22:54:12,518 INFO L98 nessWitnessExtractor]: Location invariant after [L1717-L1723] (unsigned long )status == 0UL [2024-01-29 22:54:12,518 INFO L98 nessWitnessExtractor]: Location invariant before [L1713-L1713] pdev == 3 [2024-01-29 22:54:12,519 INFO L98 nessWitnessExtractor]: Location invariant before [L1700-L1700] ((0 <= pdev) && (1 <= pdev)) && (pdev <= 6) [2024-01-29 22:54:12,519 INFO L98 nessWitnessExtractor]: Location invariant before [L1700-L1700] (((0 <= pdev) && (1 <= pdev)) && (pdev <= 6)) && ((pdev == 1 || pdev == 5) || pdev == 6) [2024-01-29 22:54:12,519 INFO L98 nessWitnessExtractor]: Location invariant before [L1700-L1700] (((0 <= pdev) && (1 <= pdev)) && (pdev <= 6)) && ((unsigned long )arg == 0UL) [2024-01-29 22:54:12,519 INFO L98 nessWitnessExtractor]: Location invariant before [L1700-L1700] (0 <= pdev) && (1 <= pdev) [2024-01-29 22:54:12,519 INFO L98 nessWitnessExtractor]: Location invariant before [L1700-L1700] (((0 <= pdev) && (1 <= pdev)) && (pdev <= 6)) && (pdev != 0) [2024-01-29 22:54:12,519 INFO L98 nessWitnessExtractor]: Location invariant before [L1700-L1700] 0 <= pdev [2024-01-29 22:54:12,519 INFO L98 nessWitnessExtractor]: Location invariant before [L1700-L1700] (((0 <= pdev) && (1 <= pdev)) && (pdev <= 6)) && (pdev <= 127) [2024-01-29 22:54:12,519 INFO L98 nessWitnessExtractor]: Location invariant before [L1715-L1715] pdev == 3 [2024-01-29 22:54:12,520 INFO L98 nessWitnessExtractor]: Location invariant before [L1702-L1702] (unsigned long )arg == 0UL [2024-01-29 22:54:12,520 INFO L98 nessWitnessExtractor]: Location invariant before [L1699-L1699] ((0 <= pdev) && (pdev <= 6)) && ((pdev == 1 || pdev == 5) || pdev == 6) [2024-01-29 22:54:12,520 INFO L98 nessWitnessExtractor]: Location invariant before [L1699-L1699] (0 <= pdev) && (pdev <= 6) [2024-01-29 22:54:12,520 INFO L98 nessWitnessExtractor]: Location invariant before [L1699-L1699] 0 <= pdev [2024-01-29 22:54:12,520 INFO L98 nessWitnessExtractor]: Location invariant before [L1699-L1699] (0 <= pdev) && (1 <= pdev) [2024-01-29 22:54:12,520 INFO L98 nessWitnessExtractor]: Location invariant before [L1699-L1699] ((0 <= pdev) && (pdev <= 6)) && (pdev != 0) [2024-01-29 22:54:12,520 INFO L98 nessWitnessExtractor]: Location invariant before [L1699-L1699] ((0 <= pdev) && (pdev <= 6)) && ((unsigned long )arg == 0UL) [2024-01-29 22:54:12,521 INFO L98 nessWitnessExtractor]: Location invariant before [L1699-L1699] ((0 <= pdev) && (pdev <= 6)) && (pdev <= 127) [2024-01-29 22:54:12,521 INFO L98 nessWitnessExtractor]: Location invariant before [L22-L22] pdev == 1 [2024-01-29 22:54:12,521 INFO L98 nessWitnessExtractor]: Location invariant before [L1721-L1721] (unsigned long )status == 0UL [2024-01-29 22:54:12,521 INFO L98 nessWitnessExtractor]: Location invariant before [L1706-L1706] pdev == 0 [2024-01-29 22:54:12,553 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 22:54:13,051 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i[76068,76081] [2024-01-29 22:54:13,085 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:54:13,103 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 22:54:13,112 WARN L424 MainDispatcher]: Unable to annotate typedef unsigned int __mode_t; with a witness entry [2024-01-29 22:54:13,139 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i[76068,76081] [2024-01-29 22:54:13,140 WARN L424 MainDispatcher]: Unable to annotate void ldv_assert(int expression) { if (!expression) { ERROR: {reach_error();abort();}}; return; } with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 22:54:13,200 WARN L424 MainDispatcher]: Unable to annotate void module_exit() { void *status; pthread_join(t1, &status); pthread_mutex_destroy(&mutex); pdev = 5; ldv_assert(pdev==5); } with a witness entry [2024-01-29 22:54:13,201 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:54:13,274 INFO L206 MainTranslator]: Completed translation [2024-01-29 22:54:13,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:54:13 WrapperNode [2024-01-29 22:54:13,274 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 22:54:13,276 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 22:54:13,276 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 22:54:13,276 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 22:54:13,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:54:13" (1/1) ... [2024-01-29 22:54:13,308 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:54:13" (1/1) ... [2024-01-29 22:54:13,362 INFO L138 Inliner]: procedures = 481, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 138 [2024-01-29 22:54:13,372 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 22:54:13,373 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 22:54:13,373 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 22:54:13,373 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 22:54:13,381 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:54:13" (1/1) ... [2024-01-29 22:54:13,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:54:13" (1/1) ... [2024-01-29 22:54:13,384 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:54:13" (1/1) ... [2024-01-29 22:54:13,398 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 3, 5]. 36 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 0, 1, 5]. The 2 writes are split as follows [0, 1, 1, 0]. [2024-01-29 22:54:13,398 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:54:13" (1/1) ... [2024-01-29 22:54:13,398 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:54:13" (1/1) ... [2024-01-29 22:54:13,406 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:54:13" (1/1) ... [2024-01-29 22:54:13,408 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:54:13" (1/1) ... [2024-01-29 22:54:13,411 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:54:13" (1/1) ... [2024-01-29 22:54:13,413 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:54:13" (1/1) ... [2024-01-29 22:54:13,417 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 22:54:13,418 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 22:54:13,418 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 22:54:13,418 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 22:54:13,419 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:54:13" (1/1) ... [2024-01-29 22:54:13,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:54:13,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:54:13,445 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-29 22:54:13,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-29 22:54:13,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 22:54:13,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 22:54:13,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 22:54:13,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 22:54:13,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 22:54:13,477 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-29 22:54:13,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 22:54:13,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-01-29 22:54:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-01-29 22:54:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-01-29 22:54:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-01-29 22:54:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 22:54:13,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 22:54:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 22:54:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-01-29 22:54:13,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-01-29 22:54:13,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-01-29 22:54:13,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-01-29 22:54:13,479 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-29 22:54:13,480 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 22:54:13,480 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 22:54:13,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 22:54:13,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 22:54:13,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 22:54:13,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 22:54:13,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 22:54:13,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 22:54:13,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 22:54:13,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 22:54:13,482 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 22:54:13,734 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 22:54:13,736 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 22:54:14,028 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 22:54:14,028 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 22:54:14,117 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 22:54:14,117 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-29 22:54:14,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:54:14 BoogieIcfgContainer [2024-01-29 22:54:14,119 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 22:54:14,122 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 22:54:14,122 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 22:54:14,125 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 22:54:14,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:54:10" (1/4) ... [2024-01-29 22:54:14,126 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aec5d8d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:54:14, skipping insertion in model container [2024-01-29 22:54:14,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 10:54:12" (2/4) ... [2024-01-29 22:54:14,126 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aec5d8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:54:14, skipping insertion in model container [2024-01-29 22:54:14,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:54:13" (3/4) ... [2024-01-29 22:54:14,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aec5d8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:54:14, skipping insertion in model container [2024-01-29 22:54:14,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:54:14" (4/4) ... [2024-01-29 22:54:14,129 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2024-01-29 22:54:14,144 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 22:54:14,145 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2024-01-29 22:54:14,145 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 22:54:14,214 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-01-29 22:54:14,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 107 transitions, 221 flow [2024-01-29 22:54:14,294 INFO L124 PetriNetUnfolderBase]: 5/110 cut-off events. [2024-01-29 22:54:14,294 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-29 22:54:14,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 110 events. 5/110 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 138 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 61. Up to 3 conditions per place. [2024-01-29 22:54:14,299 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 107 transitions, 221 flow [2024-01-29 22:54:14,302 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 102 transitions, 210 flow [2024-01-29 22:54:14,316 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:54:14,324 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;@76cb3d0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:54:14,325 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2024-01-29 22:54:14,327 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:54:14,327 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 22:54:14,327 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:54:14,327 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:54:14,328 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 22:54:14,329 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-29 22:54:14,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:54:14,333 INFO L85 PathProgramCache]: Analyzing trace with hash 12241, now seen corresponding path program 1 times [2024-01-29 22:54:14,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:54:14,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720557021] [2024-01-29 22:54:14,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:54:14,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:54:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:54:14,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:54:14,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:54:14,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720557021] [2024-01-29 22:54:14,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720557021] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:54:14,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:54:14,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 22:54:14,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767253207] [2024-01-29 22:54:14,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:54:14,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:54:14,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:54:14,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:54:14,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:54:14,819 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 107 [2024-01-29 22:54:14,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 102 transitions, 210 flow. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:14,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:54:14,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 107 [2024-01-29 22:54:14,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:54:14,993 INFO L124 PetriNetUnfolderBase]: 120/447 cut-off events. [2024-01-29 22:54:14,993 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-29 22:54:14,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 741 conditions, 447 events. 120/447 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1895 event pairs, 120 based on Foata normal form. 8/413 useless extension candidates. Maximal degree in co-relation 679. Up to 287 conditions per place. [2024-01-29 22:54:14,997 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 46 selfloop transitions, 2 changer transitions 0/97 dead transitions. [2024-01-29 22:54:14,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 97 transitions, 296 flow [2024-01-29 22:54:14,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:54:15,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:54:15,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 206 transitions. [2024-01-29 22:54:15,007 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6417445482866043 [2024-01-29 22:54:15,008 INFO L175 Difference]: Start difference. First operand has 103 places, 102 transitions, 210 flow. Second operand 3 states and 206 transitions. [2024-01-29 22:54:15,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 97 transitions, 296 flow [2024-01-29 22:54:15,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 97 transitions, 292 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:54:15,013 INFO L231 Difference]: Finished difference. Result has 101 places, 97 transitions, 200 flow [2024-01-29 22:54:15,015 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=200, PETRI_PLACES=101, PETRI_TRANSITIONS=97} [2024-01-29 22:54:15,017 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -2 predicate places. [2024-01-29 22:54:15,018 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 97 transitions, 200 flow [2024-01-29 22:54:15,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:15,018 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:54:15,018 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-29 22:54:15,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 22:54:15,018 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-29 22:54:15,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:54:15,019 INFO L85 PathProgramCache]: Analyzing trace with hash 11777516, now seen corresponding path program 1 times [2024-01-29 22:54:15,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:54:15,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435564095] [2024-01-29 22:54:15,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:54:15,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:54:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:54:15,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:54:15,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:54:15,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435564095] [2024-01-29 22:54:15,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435564095] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:54:15,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:54:15,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:54:15,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226424022] [2024-01-29 22:54:15,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:54:15,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:54:15,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:54:15,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:54:15,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:54:15,124 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 107 [2024-01-29 22:54:15,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 97 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:15,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:54:15,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 107 [2024-01-29 22:54:15,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:54:15,226 INFO L124 PetriNetUnfolderBase]: 90/367 cut-off events. [2024-01-29 22:54:15,226 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:54:15,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 595 conditions, 367 events. 90/367 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1547 event pairs, 5 based on Foata normal form. 10/323 useless extension candidates. Maximal degree in co-relation 584. Up to 199 conditions per place. [2024-01-29 22:54:15,229 INFO L140 encePairwiseOnDemand]: 94/107 looper letters, 44 selfloop transitions, 3 changer transitions 0/92 dead transitions. [2024-01-29 22:54:15,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 92 transitions, 284 flow [2024-01-29 22:54:15,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:54:15,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:54:15,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 204 transitions. [2024-01-29 22:54:15,232 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6355140186915887 [2024-01-29 22:54:15,232 INFO L175 Difference]: Start difference. First operand has 101 places, 97 transitions, 200 flow. Second operand 3 states and 204 transitions. [2024-01-29 22:54:15,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 92 transitions, 284 flow [2024-01-29 22:54:15,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 92 transitions, 280 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:54:15,234 INFO L231 Difference]: Finished difference. Result has 91 places, 87 transitions, 182 flow [2024-01-29 22:54:15,235 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=91, PETRI_TRANSITIONS=87} [2024-01-29 22:54:15,235 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -12 predicate places. [2024-01-29 22:54:15,235 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 87 transitions, 182 flow [2024-01-29 22:54:15,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:15,236 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:54:15,236 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 22:54:15,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 22:54:15,237 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-29 22:54:15,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:54:15,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1566694955, now seen corresponding path program 1 times [2024-01-29 22:54:15,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:54:15,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161150454] [2024-01-29 22:54:15,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:54:15,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:54:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:54:15,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:54:15,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:54:15,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161150454] [2024-01-29 22:54:15,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161150454] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:54:15,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:54:15,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 22:54:15,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658255991] [2024-01-29 22:54:15,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:54:15,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:54:15,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:54:15,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:54:15,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:54:15,418 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 107 [2024-01-29 22:54:15,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 87 transitions, 182 flow. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:15,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:54:15,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 107 [2024-01-29 22:54:15,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:54:15,534 INFO L124 PetriNetUnfolderBase]: 90/363 cut-off events. [2024-01-29 22:54:15,534 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-29 22:54:15,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 600 conditions, 363 events. 90/363 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1546 event pairs, 5 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 120. Up to 199 conditions per place. [2024-01-29 22:54:15,538 INFO L140 encePairwiseOnDemand]: 98/107 looper letters, 43 selfloop transitions, 7 changer transitions 0/88 dead transitions. [2024-01-29 22:54:15,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 88 transitions, 284 flow [2024-01-29 22:54:15,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 22:54:15,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 22:54:15,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 267 transitions. [2024-01-29 22:54:15,541 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49906542056074765 [2024-01-29 22:54:15,541 INFO L175 Difference]: Start difference. First operand has 91 places, 87 transitions, 182 flow. Second operand 5 states and 267 transitions. [2024-01-29 22:54:15,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 88 transitions, 284 flow [2024-01-29 22:54:15,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 88 transitions, 278 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:54:15,543 INFO L231 Difference]: Finished difference. Result has 89 places, 83 transitions, 182 flow [2024-01-29 22:54:15,544 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=182, PETRI_PLACES=89, PETRI_TRANSITIONS=83} [2024-01-29 22:54:15,545 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -14 predicate places. [2024-01-29 22:54:15,545 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 83 transitions, 182 flow [2024-01-29 22:54:15,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:15,545 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:54:15,546 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:54:15,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 22:54:15,546 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-29 22:54:15,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:54:15,547 INFO L85 PathProgramCache]: Analyzing trace with hash -11145780, now seen corresponding path program 1 times [2024-01-29 22:54:15,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:54:15,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527183043] [2024-01-29 22:54:15,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:54:15,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:54:15,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:54:15,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:54:15,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:54:15,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527183043] [2024-01-29 22:54:15,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527183043] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:54:15,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:54:15,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:54:15,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574706465] [2024-01-29 22:54:15,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:54:15,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:54:15,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:54:15,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:54:15,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:54:15,653 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 107 [2024-01-29 22:54:15,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 83 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:15,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:54:15,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 107 [2024-01-29 22:54:15,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:54:15,726 INFO L124 PetriNetUnfolderBase]: 90/325 cut-off events. [2024-01-29 22:54:15,727 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-01-29 22:54:15,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 563 conditions, 325 events. 90/325 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1367 event pairs, 90 based on Foata normal form. 2/268 useless extension candidates. Maximal degree in co-relation 462. Up to 219 conditions per place. [2024-01-29 22:54:15,730 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 37 selfloop transitions, 0 changer transitions 6/80 dead transitions. [2024-01-29 22:54:15,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 80 transitions, 260 flow [2024-01-29 22:54:15,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:54:15,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:54:15,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 198 transitions. [2024-01-29 22:54:15,732 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.616822429906542 [2024-01-29 22:54:15,732 INFO L175 Difference]: Start difference. First operand has 89 places, 83 transitions, 182 flow. Second operand 3 states and 198 transitions. [2024-01-29 22:54:15,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 80 transitions, 260 flow [2024-01-29 22:54:15,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 80 transitions, 246 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-29 22:54:15,735 INFO L231 Difference]: Finished difference. Result has 84 places, 74 transitions, 150 flow [2024-01-29 22:54:15,735 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=84, PETRI_TRANSITIONS=74} [2024-01-29 22:54:15,736 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -19 predicate places. [2024-01-29 22:54:15,736 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 74 transitions, 150 flow [2024-01-29 22:54:15,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:15,736 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:54:15,736 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:54:15,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 22:54:15,737 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-29 22:54:15,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:54:15,737 INFO L85 PathProgramCache]: Analyzing trace with hash -2119729168, now seen corresponding path program 1 times [2024-01-29 22:54:15,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:54:15,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180748830] [2024-01-29 22:54:15,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:54:15,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:54:15,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:54:15,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:54:15,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:54:15,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180748830] [2024-01-29 22:54:15,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180748830] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:54:15,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:54:15,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:54:15,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598180753] [2024-01-29 22:54:15,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:54:15,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:54:15,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:54:15,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:54:15,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:54:15,904 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 107 [2024-01-29 22:54:15,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 74 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:15,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:54:15,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 107 [2024-01-29 22:54:15,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:54:15,971 INFO L124 PetriNetUnfolderBase]: 35/342 cut-off events. [2024-01-29 22:54:15,972 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:54:15,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 342 events. 35/342 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1659 event pairs, 0 based on Foata normal form. 6/250 useless extension candidates. Maximal degree in co-relation 439. Up to 82 conditions per place. [2024-01-29 22:54:15,974 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 29 selfloop transitions, 2 changer transitions 0/77 dead transitions. [2024-01-29 22:54:15,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 77 transitions, 218 flow [2024-01-29 22:54:15,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:54:15,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:54:15,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 309 transitions. [2024-01-29 22:54:15,976 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7219626168224299 [2024-01-29 22:54:15,976 INFO L175 Difference]: Start difference. First operand has 84 places, 74 transitions, 150 flow. Second operand 4 states and 309 transitions. [2024-01-29 22:54:15,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 77 transitions, 218 flow [2024-01-29 22:54:15,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 77 transitions, 218 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 22:54:15,980 INFO L231 Difference]: Finished difference. Result has 78 places, 72 transitions, 150 flow [2024-01-29 22:54:15,981 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=150, PETRI_PLACES=78, PETRI_TRANSITIONS=72} [2024-01-29 22:54:15,982 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -25 predicate places. [2024-01-29 22:54:15,982 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 72 transitions, 150 flow [2024-01-29 22:54:15,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:15,983 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:54:15,983 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:54:15,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 22:54:15,983 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-29 22:54:15,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:54:15,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1641639059, now seen corresponding path program 1 times [2024-01-29 22:54:15,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:54:15,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366491425] [2024-01-29 22:54:15,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:54:15,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:54:16,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:54:16,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:54:16,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:54:16,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366491425] [2024-01-29 22:54:16,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366491425] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:54:16,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:54:16,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:54:16,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106974471] [2024-01-29 22:54:16,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:54:16,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:54:16,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:54:16,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:54:16,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:54:16,199 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 107 [2024-01-29 22:54:16,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 72 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:16,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:54:16,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 107 [2024-01-29 22:54:16,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:54:16,288 INFO L124 PetriNetUnfolderBase]: 125/426 cut-off events. [2024-01-29 22:54:16,288 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-01-29 22:54:16,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 732 conditions, 426 events. 125/426 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1725 event pairs, 5 based on Foata normal form. 0/376 useless extension candidates. Maximal degree in co-relation 728. Up to 239 conditions per place. [2024-01-29 22:54:16,290 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 51 selfloop transitions, 3 changer transitions 0/81 dead transitions. [2024-01-29 22:54:16,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 81 transitions, 276 flow [2024-01-29 22:54:16,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:54:16,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:54:16,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 211 transitions. [2024-01-29 22:54:16,291 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4929906542056075 [2024-01-29 22:54:16,292 INFO L175 Difference]: Start difference. First operand has 78 places, 72 transitions, 150 flow. Second operand 4 states and 211 transitions. [2024-01-29 22:54:16,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 81 transitions, 276 flow [2024-01-29 22:54:16,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 81 transitions, 273 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:54:16,293 INFO L231 Difference]: Finished difference. Result has 78 places, 71 transitions, 151 flow [2024-01-29 22:54:16,293 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=151, PETRI_PLACES=78, PETRI_TRANSITIONS=71} [2024-01-29 22:54:16,294 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -25 predicate places. [2024-01-29 22:54:16,294 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 71 transitions, 151 flow [2024-01-29 22:54:16,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:16,294 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:54:16,294 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] [2024-01-29 22:54:16,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 22:54:16,295 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-29 22:54:16,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:54:16,295 INFO L85 PathProgramCache]: Analyzing trace with hash -2109743687, now seen corresponding path program 1 times [2024-01-29 22:54:16,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:54:16,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717733602] [2024-01-29 22:54:16,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:54:16,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:54:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:54:16,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:54:16,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:54:16,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717733602] [2024-01-29 22:54:16,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717733602] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:54:16,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:54:16,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:54:16,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560583134] [2024-01-29 22:54:16,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:54:16,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:54:16,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:54:16,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:54:16,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:54:16,401 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 107 [2024-01-29 22:54:16,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 71 transitions, 151 flow. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:16,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:54:16,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 107 [2024-01-29 22:54:16,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:54:16,483 INFO L124 PetriNetUnfolderBase]: 30/214 cut-off events. [2024-01-29 22:54:16,484 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-29 22:54:16,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 214 events. 30/214 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 757 event pairs, 5 based on Foata normal form. 66/248 useless extension candidates. Maximal degree in co-relation 309. Up to 58 conditions per place. [2024-01-29 22:54:16,485 INFO L140 encePairwiseOnDemand]: 93/107 looper letters, 28 selfloop transitions, 2 changer transitions 0/64 dead transitions. [2024-01-29 22:54:16,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 64 transitions, 197 flow [2024-01-29 22:54:16,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:54:16,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:54:16,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2024-01-29 22:54:16,487 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6261682242990654 [2024-01-29 22:54:16,487 INFO L175 Difference]: Start difference. First operand has 78 places, 71 transitions, 151 flow. Second operand 3 states and 201 transitions. [2024-01-29 22:54:16,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 64 transitions, 197 flow [2024-01-29 22:54:16,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 64 transitions, 191 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 22:54:16,489 INFO L231 Difference]: Finished difference. Result has 65 places, 59 transitions, 125 flow [2024-01-29 22:54:16,489 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=65, PETRI_TRANSITIONS=59} [2024-01-29 22:54:16,490 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -38 predicate places. [2024-01-29 22:54:16,490 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 59 transitions, 125 flow [2024-01-29 22:54:16,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:16,491 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:54:16,491 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] [2024-01-29 22:54:16,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 22:54:16,491 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-29 22:54:16,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:54:16,492 INFO L85 PathProgramCache]: Analyzing trace with hash -2146128259, now seen corresponding path program 1 times [2024-01-29 22:54:16,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:54:16,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385231226] [2024-01-29 22:54:16,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:54:16,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:54:16,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:54:16,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:54:16,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:54:16,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385231226] [2024-01-29 22:54:16,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385231226] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:54:16,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:54:16,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:54:16,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63134683] [2024-01-29 22:54:16,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:54:16,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:54:16,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:54:16,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:54:16,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:54:16,690 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 107 [2024-01-29 22:54:16,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 59 transitions, 125 flow. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:16,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:54:16,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 107 [2024-01-29 22:54:16,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:54:16,759 INFO L124 PetriNetUnfolderBase]: 55/272 cut-off events. [2024-01-29 22:54:16,759 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-29 22:54:16,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 430 conditions, 272 events. 55/272 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 947 event pairs, 5 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 426. Up to 80 conditions per place. [2024-01-29 22:54:16,761 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 37 selfloop transitions, 3 changer transitions 0/67 dead transitions. [2024-01-29 22:54:16,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 67 transitions, 221 flow [2024-01-29 22:54:16,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:54:16,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:54:16,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 214 transitions. [2024-01-29 22:54:16,762 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-01-29 22:54:16,762 INFO L175 Difference]: Start difference. First operand has 65 places, 59 transitions, 125 flow. Second operand 4 states and 214 transitions. [2024-01-29 22:54:16,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 67 transitions, 221 flow [2024-01-29 22:54:16,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 67 transitions, 217 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:54:16,764 INFO L231 Difference]: Finished difference. Result has 64 places, 57 transitions, 123 flow [2024-01-29 22:54:16,764 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=123, PETRI_PLACES=64, PETRI_TRANSITIONS=57} [2024-01-29 22:54:16,765 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -39 predicate places. [2024-01-29 22:54:16,765 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 57 transitions, 123 flow [2024-01-29 22:54:16,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:16,765 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:54:16,765 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] [2024-01-29 22:54:16,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-29 22:54:16,766 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err15ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-29 22:54:16,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:54:16,766 INFO L85 PathProgramCache]: Analyzing trace with hash -238076126, now seen corresponding path program 1 times [2024-01-29 22:54:16,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:54:16,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414297662] [2024-01-29 22:54:16,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:54:16,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:54:16,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:54:16,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:54:16,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:54:16,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414297662] [2024-01-29 22:54:16,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414297662] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:54:16,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:54:16,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 22:54:16,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88794893] [2024-01-29 22:54:16,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:54:16,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:54:16,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:54:16,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:54:16,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:54:17,056 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 107 [2024-01-29 22:54:17,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 57 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:17,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:54:17,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 107 [2024-01-29 22:54:17,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:54:17,140 INFO L124 PetriNetUnfolderBase]: 35/195 cut-off events. [2024-01-29 22:54:17,140 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-29 22:54:17,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 195 events. 35/195 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 613 event pairs, 5 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 301. Up to 47 conditions per place. [2024-01-29 22:54:17,141 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 26 selfloop transitions, 4 changer transitions 6/65 dead transitions. [2024-01-29 22:54:17,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 65 transitions, 211 flow [2024-01-29 22:54:17,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:54:17,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:54:17,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 241 transitions. [2024-01-29 22:54:17,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5630841121495327 [2024-01-29 22:54:17,142 INFO L175 Difference]: Start difference. First operand has 64 places, 57 transitions, 123 flow. Second operand 4 states and 241 transitions. [2024-01-29 22:54:17,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 65 transitions, 211 flow [2024-01-29 22:54:17,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 65 transitions, 205 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 22:54:17,143 INFO L231 Difference]: Finished difference. Result has 62 places, 53 transitions, 117 flow [2024-01-29 22:54:17,144 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=117, PETRI_PLACES=62, PETRI_TRANSITIONS=53} [2024-01-29 22:54:17,144 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -41 predicate places. [2024-01-29 22:54:17,144 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 53 transitions, 117 flow [2024-01-29 22:54:17,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:17,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:54:17,145 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:54:17,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-29 22:54:17,145 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-29 22:54:17,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:54:17,146 INFO L85 PathProgramCache]: Analyzing trace with hash 2050911616, now seen corresponding path program 1 times [2024-01-29 22:54:17,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:54:17,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777885383] [2024-01-29 22:54:17,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:54:17,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:54:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:54:17,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:54:17,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:54:17,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777885383] [2024-01-29 22:54:17,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777885383] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:54:17,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:54:17,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 22:54:17,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616212658] [2024-01-29 22:54:17,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:54:17,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 22:54:17,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:54:17,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 22:54:17,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-01-29 22:54:17,418 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 107 [2024-01-29 22:54:17,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 53 transitions, 117 flow. Second operand has 5 states, 5 states have (on average 75.2) internal successors, (376), 5 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:17,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:54:17,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 107 [2024-01-29 22:54:17,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:54:17,522 INFO L124 PetriNetUnfolderBase]: 18/88 cut-off events. [2024-01-29 22:54:17,523 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-01-29 22:54:17,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 88 events. 18/88 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 138 event pairs, 15 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 162. Up to 48 conditions per place. [2024-01-29 22:54:17,524 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 22 selfloop transitions, 4 changer transitions 0/55 dead transitions. [2024-01-29 22:54:17,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 55 transitions, 173 flow [2024-01-29 22:54:17,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 22:54:17,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 22:54:17,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 382 transitions. [2024-01-29 22:54:17,526 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7140186915887851 [2024-01-29 22:54:17,526 INFO L175 Difference]: Start difference. First operand has 62 places, 53 transitions, 117 flow. Second operand 5 states and 382 transitions. [2024-01-29 22:54:17,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 55 transitions, 173 flow [2024-01-29 22:54:17,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 55 transitions, 165 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 22:54:17,528 INFO L231 Difference]: Finished difference. Result has 60 places, 52 transitions, 115 flow [2024-01-29 22:54:17,528 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=115, PETRI_PLACES=60, PETRI_TRANSITIONS=52} [2024-01-29 22:54:17,529 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -43 predicate places. [2024-01-29 22:54:17,529 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 52 transitions, 115 flow [2024-01-29 22:54:17,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.2) internal successors, (376), 5 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:17,529 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:54:17,529 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:54:17,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-29 22:54:17,530 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-29 22:54:17,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:54:17,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1741195433, now seen corresponding path program 1 times [2024-01-29 22:54:17,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:54:17,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731258900] [2024-01-29 22:54:17,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:54:17,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:54:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:54:17,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:54:17,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:54:17,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731258900] [2024-01-29 22:54:17,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731258900] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:54:17,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:54:17,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-29 22:54:17,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31943672] [2024-01-29 22:54:17,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:54:17,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-29 22:54:17,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:54:17,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-29 22:54:17,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-01-29 22:54:17,876 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 107 [2024-01-29 22:54:17,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 115 flow. Second operand has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:17,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:54:17,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 107 [2024-01-29 22:54:17,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:54:18,004 INFO L124 PetriNetUnfolderBase]: 18/87 cut-off events. [2024-01-29 22:54:18,005 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-29 22:54:18,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 87 events. 18/87 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 130 event pairs, 15 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 155. Up to 48 conditions per place. [2024-01-29 22:54:18,006 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 21 selfloop transitions, 5 changer transitions 0/54 dead transitions. [2024-01-29 22:54:18,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 54 transitions, 171 flow [2024-01-29 22:54:18,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-29 22:54:18,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-29 22:54:18,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 447 transitions. [2024-01-29 22:54:18,007 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6962616822429907 [2024-01-29 22:54:18,007 INFO L175 Difference]: Start difference. First operand has 60 places, 52 transitions, 115 flow. Second operand 6 states and 447 transitions. [2024-01-29 22:54:18,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 54 transitions, 171 flow [2024-01-29 22:54:18,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 54 transitions, 163 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-29 22:54:18,009 INFO L231 Difference]: Finished difference. Result has 60 places, 51 transitions, 115 flow [2024-01-29 22:54:18,009 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=115, PETRI_PLACES=60, PETRI_TRANSITIONS=51} [2024-01-29 22:54:18,009 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -43 predicate places. [2024-01-29 22:54:18,010 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 51 transitions, 115 flow [2024-01-29 22:54:18,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:18,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:54:18,010 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:54:18,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-01-29 22:54:18,011 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-29 22:54:18,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:54:18,011 INFO L85 PathProgramCache]: Analyzing trace with hash 189880525, now seen corresponding path program 1 times [2024-01-29 22:54:18,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:54:18,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345989812] [2024-01-29 22:54:18,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:54:18,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:54:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:54:18,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:54:18,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:54:18,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345989812] [2024-01-29 22:54:18,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345989812] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:54:18,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:54:18,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-29 22:54:18,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379916260] [2024-01-29 22:54:18,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:54:18,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-29 22:54:18,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:54:18,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-29 22:54:18,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-01-29 22:54:18,339 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 107 [2024-01-29 22:54:18,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 51 transitions, 115 flow. Second operand has 7 states, 7 states have (on average 73.28571428571429) internal successors, (513), 7 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:18,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:54:18,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 107 [2024-01-29 22:54:18,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:54:18,491 INFO L124 PetriNetUnfolderBase]: 18/86 cut-off events. [2024-01-29 22:54:18,492 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-29 22:54:18,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 86 events. 18/86 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 130 event pairs, 15 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 155. Up to 48 conditions per place. [2024-01-29 22:54:18,493 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 20 selfloop transitions, 6 changer transitions 0/53 dead transitions. [2024-01-29 22:54:18,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 53 transitions, 171 flow [2024-01-29 22:54:18,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-29 22:54:18,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-29 22:54:18,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 517 transitions. [2024-01-29 22:54:18,495 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6902536715620827 [2024-01-29 22:54:18,495 INFO L175 Difference]: Start difference. First operand has 60 places, 51 transitions, 115 flow. Second operand 7 states and 517 transitions. [2024-01-29 22:54:18,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 53 transitions, 171 flow [2024-01-29 22:54:18,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 53 transitions, 161 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-01-29 22:54:18,497 INFO L231 Difference]: Finished difference. Result has 60 places, 50 transitions, 115 flow [2024-01-29 22:54:18,497 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=115, PETRI_PLACES=60, PETRI_TRANSITIONS=50} [2024-01-29 22:54:18,498 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -43 predicate places. [2024-01-29 22:54:18,498 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 115 flow [2024-01-29 22:54:18,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.28571428571429) internal successors, (513), 7 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:18,498 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:54:18,499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:54:18,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-01-29 22:54:18,499 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-29 22:54:18,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:54:18,500 INFO L85 PathProgramCache]: Analyzing trace with hash 2086571532, now seen corresponding path program 1 times [2024-01-29 22:54:18,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:54:18,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048450743] [2024-01-29 22:54:18,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:54:18,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:54:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:54:18,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:54:18,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:54:18,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048450743] [2024-01-29 22:54:18,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048450743] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:54:18,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:54:18,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 22:54:18,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880722549] [2024-01-29 22:54:18,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:54:18,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:54:18,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:54:18,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:54:18,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:54:18,720 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 107 [2024-01-29 22:54:18,721 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 115 flow. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:18,721 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:54:18,721 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 107 [2024-01-29 22:54:18,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:54:18,767 INFO L124 PetriNetUnfolderBase]: 18/84 cut-off events. [2024-01-29 22:54:18,767 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-01-29 22:54:18,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 84 events. 18/84 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 132 event pairs, 18 based on Foata normal form. 1/72 useless extension candidates. Maximal degree in co-relation 155. Up to 57 conditions per place. [2024-01-29 22:54:18,767 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2024-01-29 22:54:18,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 48 transitions, 159 flow [2024-01-29 22:54:18,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 22:54:18,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 22:54:18,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 260 transitions. [2024-01-29 22:54:18,769 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48598130841121495 [2024-01-29 22:54:18,769 INFO L175 Difference]: Start difference. First operand has 60 places, 50 transitions, 115 flow. Second operand 5 states and 260 transitions. [2024-01-29 22:54:18,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 48 transitions, 159 flow [2024-01-29 22:54:18,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 48 transitions, 147 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-01-29 22:54:18,770 INFO L231 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2024-01-29 22:54:18,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2024-01-29 22:54:18,770 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -47 predicate places. [2024-01-29 22:54:18,770 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2024-01-29 22:54:18,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:54:18,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 64 remaining) [2024-01-29 22:54:18,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 64 remaining) [2024-01-29 22:54:18,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 64 remaining) [2024-01-29 22:54:18,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 64 remaining) [2024-01-29 22:54:18,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 64 remaining) [2024-01-29 22:54:18,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 64 remaining) [2024-01-29 22:54:18,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 64 remaining) [2024-01-29 22:54:18,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 64 remaining) [2024-01-29 22:54:18,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 64 remaining) [2024-01-29 22:54:18,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 64 remaining) [2024-01-29 22:54:18,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 64 remaining) [2024-01-29 22:54:18,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 64 remaining) [2024-01-29 22:54:18,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 64 remaining) [2024-01-29 22:54:18,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 64 remaining) [2024-01-29 22:54:18,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 64 remaining) [2024-01-29 22:54:18,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONERROR_FUNCTION (48 of 64 remaining) [2024-01-29 22:54:18,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 64 remaining) [2024-01-29 22:54:18,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 64 remaining) [2024-01-29 22:54:18,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 64 remaining) [2024-01-29 22:54:18,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 64 remaining) [2024-01-29 22:54:18,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 64 remaining) [2024-01-29 22:54:18,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 64 remaining) [2024-01-29 22:54:18,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 64 remaining) [2024-01-29 22:54:18,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 64 remaining) [2024-01-29 22:54:18,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 64 remaining) [2024-01-29 22:54:18,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 64 remaining) [2024-01-29 22:54:18,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 64 remaining) [2024-01-29 22:54:18,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (36 of 64 remaining) [2024-01-29 22:54:18,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 64 remaining) [2024-01-29 22:54:18,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 64 remaining) [2024-01-29 22:54:18,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 64 remaining) [2024-01-29 22:54:18,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 64 remaining) [2024-01-29 22:54:18,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (31 of 64 remaining) [2024-01-29 22:54:18,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 64 remaining) [2024-01-29 22:54:18,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 64 remaining) [2024-01-29 22:54:18,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 64 remaining) [2024-01-29 22:54:18,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 64 remaining) [2024-01-29 22:54:18,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 64 remaining) [2024-01-29 22:54:18,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (25 of 64 remaining) [2024-01-29 22:54:18,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 64 remaining) [2024-01-29 22:54:18,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 64 remaining) [2024-01-29 22:54:18,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 64 remaining) [2024-01-29 22:54:18,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 64 remaining) [2024-01-29 22:54:18,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 64 remaining) [2024-01-29 22:54:18,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 64 remaining) [2024-01-29 22:54:18,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 64 remaining) [2024-01-29 22:54:18,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 64 remaining) [2024-01-29 22:54:18,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 64 remaining) [2024-01-29 22:54:18,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 64 remaining) [2024-01-29 22:54:18,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 64 remaining) [2024-01-29 22:54:18,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 64 remaining) [2024-01-29 22:54:18,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 64 remaining) [2024-01-29 22:54:18,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 64 remaining) [2024-01-29 22:54:18,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 64 remaining) [2024-01-29 22:54:18,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 64 remaining) [2024-01-29 22:54:18,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONERROR_FUNCTION (8 of 64 remaining) [2024-01-29 22:54:18,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 64 remaining) [2024-01-29 22:54:18,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 64 remaining) [2024-01-29 22:54:18,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 64 remaining) [2024-01-29 22:54:18,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 64 remaining) [2024-01-29 22:54:18,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 64 remaining) [2024-01-29 22:54:18,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 64 remaining) [2024-01-29 22:54:18,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 64 remaining) [2024-01-29 22:54:18,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 64 remaining) [2024-01-29 22:54:18,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-01-29 22:54:18,781 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:54:18,785 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 22:54:18,785 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 22:54:18,789 INFO L503 ceAbstractionStarter]: Automizer considered 35 witness invariants [2024-01-29 22:54:18,789 INFO L504 ceAbstractionStarter]: WitnessConsidered=35 [2024-01-29 22:54:18,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 10:54:18 BasicIcfg [2024-01-29 22:54:18,790 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 22:54:18,790 INFO L158 Benchmark]: Toolchain (without parser) took 6348.54ms. Allocated memory was 142.6MB in the beginning and 266.3MB in the end (delta: 123.7MB). Free memory was 109.0MB in the beginning and 157.8MB in the end (delta: -48.9MB). Peak memory consumption was 78.1MB. Max. memory is 16.1GB. [2024-01-29 22:54:18,790 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 109.1MB. Free memory is still 71.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:54:18,790 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 142.6MB. Free memory was 116.9MB in the beginning and 116.8MB in the end (delta: 116.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:54:18,790 INFO L158 Benchmark]: CACSL2BoogieTranslator took 825.67ms. Allocated memory is still 142.6MB. Free memory was 108.5MB in the beginning and 46.2MB in the end (delta: 62.3MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2024-01-29 22:54:18,791 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.71ms. Allocated memory is still 142.6MB. Free memory was 45.8MB in the beginning and 111.7MB in the end (delta: -66.0MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2024-01-29 22:54:18,791 INFO L158 Benchmark]: Boogie Preprocessor took 44.47ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 107.7MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-29 22:54:18,791 INFO L158 Benchmark]: RCFGBuilder took 701.06ms. Allocated memory is still 142.6MB. Free memory was 107.7MB in the beginning and 69.2MB in the end (delta: 38.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-01-29 22:54:18,791 INFO L158 Benchmark]: TraceAbstraction took 4668.00ms. Allocated memory was 142.6MB in the beginning and 266.3MB in the end (delta: 123.7MB). Free memory was 68.6MB in the beginning and 157.8MB in the end (delta: -89.3MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. [2024-01-29 22:54:18,792 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 0.15ms. Allocated memory is still 109.1MB. Free memory is still 71.8MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.16ms. Allocated memory is still 142.6MB. Free memory was 116.9MB in the beginning and 116.8MB in the end (delta: 116.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 825.67ms. Allocated memory is still 142.6MB. Free memory was 108.5MB in the beginning and 46.2MB in the end (delta: 62.3MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.71ms. Allocated memory is still 142.6MB. Free memory was 45.8MB in the beginning and 111.7MB in the end (delta: -66.0MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.47ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 107.7MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 701.06ms. Allocated memory is still 142.6MB. Free memory was 107.7MB in the beginning and 69.2MB in the end (delta: 38.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4668.00ms. Allocated memory was 142.6MB in the beginning and 266.3MB in the end (delta: 123.7MB). Free memory was 68.6MB in the beginning and 157.8MB in the end (delta: -89.3MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1698]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1693]: 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: 1701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1702]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1705]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1706]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1707]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1693]: 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: 1708]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1709]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1712]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1713]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1693]: 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: 1714]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1715]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1720]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1721]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1722]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 159 locations, 64 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: 4.5s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1476 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 791 mSDsluCounter, 423 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 192 mSDsCounter, 214 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1954 IncrementalHoareTripleChecker+Invalid, 2168 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 214 mSolverCounterUnsat, 231 mSDtfsCounter, 1954 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=210occurred in iteration=0, InterpolantAutomatonStates: 56, 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, 1.6s InterpolantComputationTime, 319 NumberOfCodeBlocks, 319 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 306 ConstructedInterpolants, 0 QuantifiedInterpolants, 705 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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 39 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-29 22:54:18,823 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