./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_04-priv_multi_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-06-19_11-23-25.files/protection/13-privatized_04-priv_multi_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de 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/goblint-regression/13-privatized_04-priv_multi_true.i ./goblint.2024-06-19_11-23-25.files/protection/13-privatized_04-priv_multi_true.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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 19:40:50,172 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 19:40:50,238 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 19:40:50,242 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 19:40:50,242 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 19:40:50,273 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 19:40:50,276 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 19:40:50,276 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 19:40:50,277 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 19:40:50,280 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 19:40:50,280 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 19:40:50,280 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 19:40:50,281 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 19:40:50,282 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 19:40:50,282 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 19:40:50,282 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 19:40:50,283 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 19:40:50,283 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 19:40:50,283 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 19:40:50,283 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 19:40:50,283 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 19:40:50,285 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 19:40:50,285 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 19:40:50,285 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 19:40:50,285 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 19:40:50,285 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 19:40:50,286 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 19:40:50,286 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 19:40:50,286 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 19:40:50,286 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 19:40:50,287 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 19:40:50,287 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 19:40:50,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 19:40:50,288 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 19:40:50,288 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 19:40:50,288 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 19:40:50,288 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 19:40:50,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 19:40:50,289 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 19:40:50,289 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 19:40:50,289 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 19:40:50,289 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 19:40:50,289 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 19:40:50,289 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-27 19:40:50,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 19:40:50,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 19:40:50,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 19:40:50,520 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 19:40:50,520 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 19:40:50,521 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_04-priv_multi_true.i [2024-06-27 19:40:51,433 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 19:40:51,704 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 19:40:51,704 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_04-priv_multi_true.i [2024-06-27 19:40:51,720 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9e112270/fa477f716634434797b09cbf5e958cf3/FLAGf09357a74 [2024-06-27 19:40:51,730 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9e112270/fa477f716634434797b09cbf5e958cf3 [2024-06-27 19:40:51,732 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 19:40:51,732 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 19:40:51,733 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/13-privatized_04-priv_multi_true.yml/witness.yml [2024-06-27 19:40:51,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 19:40:51,852 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 19:40:51,854 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 19:40:51,854 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 19:40:51,858 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 19:40:51,858 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 07:40:51" (1/2) ... [2024-06-27 19:40:51,859 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2effae17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:40:51, skipping insertion in model container [2024-06-27 19:40:51,859 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 07:40:51" (1/2) ... [2024-06-27 19:40:51,862 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@58f64fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:40:51, skipping insertion in model container [2024-06-27 19:40:51,863 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:40:51" (2/2) ... [2024-06-27 19:40:51,863 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2effae17 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:40:51, skipping insertion in model container [2024-06-27 19:40:51,863 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:40:51" (2/2) ... [2024-06-27 19:40:51,863 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 19:40:51,913 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 19:40:51,915 INFO L97 edCorrectnessWitness]: Location invariant before [L1204-L1204] (((! multithreaded || (B == 5 || B == 6)) && (! multithreaded || (mutex_B_locked || (mutex_A_locked || B == 5)))) && (! multithreaded || (mutex_A_locked || A == 5))) && (! multithreaded || (1 <= A && A <= 100)) [2024-06-27 19:40:51,915 INFO L97 edCorrectnessWitness]: Location invariant before [L1203-L1203] (((! multithreaded || (B == 5 || B == 6)) && (! multithreaded || (mutex_B_locked || (mutex_A_locked || B == 5)))) && (! multithreaded || (mutex_A_locked || A == 5))) && (! multithreaded || (1 <= A && A <= 100)) [2024-06-27 19:40:51,915 INFO L97 edCorrectnessWitness]: Location invariant before [L1205-L1212] (((! multithreaded || (B == 5 || B == 6)) && (! multithreaded || (mutex_B_locked || (mutex_A_locked || B == 5)))) && (! multithreaded || (mutex_A_locked || A == 5))) && (! multithreaded || (1 <= A && A <= 100)) [2024-06-27 19:40:51,915 INFO L103 edCorrectnessWitness]: ghost_variable mutex_B_locked = 0 [2024-06-27 19:40:51,915 INFO L103 edCorrectnessWitness]: ghost_variable mutex_A_locked = 0 [2024-06-27 19:40:51,916 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 19:40:51,916 INFO L106 edCorrectnessWitness]: ghost_update [L1158-L1158] mutex_A_locked = 1; [2024-06-27 19:40:51,916 INFO L106 edCorrectnessWitness]: ghost_update [L1168-L1168] mutex_A_locked = 1; [2024-06-27 19:40:51,916 INFO L106 edCorrectnessWitness]: ghost_update [L1210-L1210] mutex_A_locked = 0; [2024-06-27 19:40:51,916 INFO L106 edCorrectnessWitness]: ghost_update [L1176-L1176] mutex_A_locked = 0; [2024-06-27 19:40:51,917 INFO L106 edCorrectnessWitness]: ghost_update [L1174-L1174] mutex_B_locked = 0; [2024-06-27 19:40:51,917 INFO L106 edCorrectnessWitness]: ghost_update [L1161-L1161] mutex_A_locked = 0; [2024-06-27 19:40:51,917 INFO L106 edCorrectnessWitness]: ghost_update [L1206-L1206] mutex_A_locked = 1; [2024-06-27 19:40:51,917 INFO L106 edCorrectnessWitness]: ghost_update [L1171-L1171] mutex_B_locked = 1; [2024-06-27 19:40:51,917 INFO L106 edCorrectnessWitness]: ghost_update [L1187-L1187] mutex_B_locked = 1; [2024-06-27 19:40:51,917 INFO L106 edCorrectnessWitness]: ghost_update [L1202-L1202] multithreaded = 1; [2024-06-27 19:40:51,917 INFO L106 edCorrectnessWitness]: ghost_update [L1209-L1209] mutex_B_locked = 0; [2024-06-27 19:40:51,918 INFO L106 edCorrectnessWitness]: ghost_update [L1190-L1190] mutex_B_locked = 0; [2024-06-27 19:40:51,918 INFO L106 edCorrectnessWitness]: ghost_update [L1207-L1207] mutex_B_locked = 1; [2024-06-27 19:40:51,956 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 19:40:52,310 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 19:40:52,320 INFO L202 MainTranslator]: Completed pre-run 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 [2024-06-27 19:40:52,388 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 19:40:52,441 INFO L206 MainTranslator]: Completed translation [2024-06-27 19:40:52,441 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:40:52 WrapperNode [2024-06-27 19:40:52,441 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 19:40:52,442 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 19:40:52,442 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 19:40:52,442 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 19:40:52,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:40:52" (1/1) ... [2024-06-27 19:40:52,464 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:40:52" (1/1) ... [2024-06-27 19:40:52,483 INFO L138 Inliner]: procedures = 271, calls = 38, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 118 [2024-06-27 19:40:52,483 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 19:40:52,484 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 19:40:52,484 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 19:40:52,484 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 19:40:52,492 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:40:52" (1/1) ... [2024-06-27 19:40:52,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:40:52" (1/1) ... [2024-06-27 19:40:52,500 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:40:52" (1/1) ... [2024-06-27 19:40:52,517 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-06-27 19:40:52,520 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:40:52" (1/1) ... [2024-06-27 19:40:52,520 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:40:52" (1/1) ... [2024-06-27 19:40:52,533 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:40:52" (1/1) ... [2024-06-27 19:40:52,548 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:40:52" (1/1) ... [2024-06-27 19:40:52,550 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:40:52" (1/1) ... [2024-06-27 19:40:52,560 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:40:52" (1/1) ... [2024-06-27 19:40:52,563 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 19:40:52,564 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 19:40:52,564 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 19:40:52,564 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 19:40:52,565 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:40:52" (1/1) ... [2024-06-27 19:40:52,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 19:40:52,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 19:40:52,586 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) [2024-06-27 19:40:52,591 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 [2024-06-27 19:40:52,613 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2024-06-27 19:40:52,613 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2024-06-27 19:40:52,613 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-27 19:40:52,613 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-27 19:40:52,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 19:40:52,613 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2024-06-27 19:40:52,613 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2024-06-27 19:40:52,613 INFO L130 BoogieDeclarations]: Found specification of procedure process [2024-06-27 19:40:52,614 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2024-06-27 19:40:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 19:40:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-27 19:40:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-27 19:40:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 19:40:52,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 19:40:52,615 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 19:40:52,838 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 19:40:52,839 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 19:40:53,004 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 19:40:53,004 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 19:40:53,103 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 19:40:53,103 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-06-27 19:40:53,103 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 07:40:53 BoogieIcfgContainer [2024-06-27 19:40:53,103 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 19:40:53,105 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 19:40:53,105 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 19:40:53,107 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 19:40:53,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 07:40:51" (1/4) ... [2024-06-27 19:40:53,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e94fcfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 07:40:53, skipping insertion in model container [2024-06-27 19:40:53,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:40:51" (2/4) ... [2024-06-27 19:40:53,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e94fcfa and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 07:40:53, skipping insertion in model container [2024-06-27 19:40:53,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:40:52" (3/4) ... [2024-06-27 19:40:53,109 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e94fcfa and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 07:40:53, skipping insertion in model container [2024-06-27 19:40:53,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 07:40:53" (4/4) ... [2024-06-27 19:40:53,110 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2024-06-27 19:40:53,122 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 19:40:53,123 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-27 19:40:53,123 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 19:40:53,157 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 19:40:53,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 60 transitions, 132 flow [2024-06-27 19:40:53,211 INFO L124 PetriNetUnfolderBase]: 6/57 cut-off events. [2024-06-27 19:40:53,212 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 19:40:53,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 57 events. 6/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 129 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2024-06-27 19:40:53,215 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 60 transitions, 132 flow [2024-06-27 19:40:53,219 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 57 transitions, 123 flow [2024-06-27 19:40:53,233 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 19:40:53,240 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;@5be38bc9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 19:40:53,241 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-27 19:40:53,245 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 19:40:53,245 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-27 19:40:53,245 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 19:40:53,245 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:40:53,246 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 19:40:53,246 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 19:40:53,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:40:53,250 INFO L85 PathProgramCache]: Analyzing trace with hash 420320376, now seen corresponding path program 1 times [2024-06-27 19:40:53,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:40:53,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773858317] [2024-06-27 19:40:53,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:40:53,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:40:53,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:40:53,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:40:53,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:40:53,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773858317] [2024-06-27 19:40:53,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773858317] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:40:53,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:40:53,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 19:40:53,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212097969] [2024-06-27 19:40:53,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:40:53,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 19:40:53,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:40:53,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 19:40:53,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 19:40:53,574 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 60 [2024-06-27 19:40:53,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 57 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2024-06-27 19:40:53,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:40:53,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 60 [2024-06-27 19:40:53,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:40:55,016 INFO L124 PetriNetUnfolderBase]: 13699/19840 cut-off events. [2024-06-27 19:40:55,016 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-06-27 19:40:55,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37489 conditions, 19840 events. 13699/19840 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 118208 event pairs, 2656 based on Foata normal form. 1429/19848 useless extension candidates. Maximal degree in co-relation 37477. Up to 15223 conditions per place. [2024-06-27 19:40:55,135 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 50 selfloop transitions, 2 changer transitions 17/79 dead transitions. [2024-06-27 19:40:55,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 79 transitions, 302 flow [2024-06-27 19:40:55,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:40:55,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:40:55,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 123 transitions. [2024-06-27 19:40:55,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6833333333333333 [2024-06-27 19:40:55,145 INFO L175 Difference]: Start difference. First operand has 61 places, 57 transitions, 123 flow. Second operand 3 states and 123 transitions. [2024-06-27 19:40:55,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 79 transitions, 302 flow [2024-06-27 19:40:55,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 79 transitions, 298 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 19:40:55,150 INFO L231 Difference]: Finished difference. Result has 58 places, 45 transitions, 112 flow [2024-06-27 19:40:55,152 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=58, PETRI_TRANSITIONS=45} [2024-06-27 19:40:55,154 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -3 predicate places. [2024-06-27 19:40:55,154 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 45 transitions, 112 flow [2024-06-27 19:40:55,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2024-06-27 19:40:55,154 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:40:55,155 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:40:55,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 19:40:55,155 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 19:40:55,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:40:55,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1086374682, now seen corresponding path program 1 times [2024-06-27 19:40:55,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:40:55,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071620722] [2024-06-27 19:40:55,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:40:55,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:40:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:40:55,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:40:55,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:40:55,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071620722] [2024-06-27 19:40:55,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071620722] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:40:55,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:40:55,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 19:40:55,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331003813] [2024-06-27 19:40:55,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:40:55,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 19:40:55,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:40:55,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 19:40:55,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-27 19:40:55,398 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 60 [2024-06-27 19:40:55,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 45 transitions, 112 flow. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:40:55,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:40:55,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 60 [2024-06-27 19:40:55,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:40:56,232 INFO L124 PetriNetUnfolderBase]: 8998/13854 cut-off events. [2024-06-27 19:40:56,233 INFO L125 PetriNetUnfolderBase]: For 1547/1547 co-relation queries the response was YES. [2024-06-27 19:40:56,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27812 conditions, 13854 events. 8998/13854 cut-off events. For 1547/1547 co-relation queries the response was YES. Maximal size of possible extension queue 436. Compared 84054 event pairs, 884 based on Foata normal form. 710/14324 useless extension candidates. Maximal degree in co-relation 27799. Up to 6574 conditions per place. [2024-06-27 19:40:56,286 INFO L140 encePairwiseOnDemand]: 46/60 looper letters, 117 selfloop transitions, 19 changer transitions 0/145 dead transitions. [2024-06-27 19:40:56,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 145 transitions, 601 flow [2024-06-27 19:40:56,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 19:40:56,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 19:40:56,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 251 transitions. [2024-06-27 19:40:56,288 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5976190476190476 [2024-06-27 19:40:56,288 INFO L175 Difference]: Start difference. First operand has 58 places, 45 transitions, 112 flow. Second operand 7 states and 251 transitions. [2024-06-27 19:40:56,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 145 transitions, 601 flow [2024-06-27 19:40:56,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 145 transitions, 598 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 19:40:56,291 INFO L231 Difference]: Finished difference. Result has 58 places, 62 transitions, 255 flow [2024-06-27 19:40:56,291 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=255, PETRI_PLACES=58, PETRI_TRANSITIONS=62} [2024-06-27 19:40:56,292 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -3 predicate places. [2024-06-27 19:40:56,292 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 62 transitions, 255 flow [2024-06-27 19:40:56,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:40:56,292 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:40:56,292 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:40:56,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 19:40:56,293 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 19:40:56,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:40:56,293 INFO L85 PathProgramCache]: Analyzing trace with hash -805728438, now seen corresponding path program 1 times [2024-06-27 19:40:56,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:40:56,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165024159] [2024-06-27 19:40:56,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:40:56,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:40:56,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:40:56,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:40:56,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:40:56,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165024159] [2024-06-27 19:40:56,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165024159] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:40:56,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:40:56,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 19:40:56,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491786846] [2024-06-27 19:40:56,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:40:56,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 19:40:56,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:40:56,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 19:40:56,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 19:40:56,361 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 60 [2024-06-27 19:40:56,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 62 transitions, 255 flow. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-06-27 19:40:56,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:40:56,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 60 [2024-06-27 19:40:56,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:40:57,598 INFO L124 PetriNetUnfolderBase]: 10722/17259 cut-off events. [2024-06-27 19:40:57,598 INFO L125 PetriNetUnfolderBase]: For 12413/13339 co-relation queries the response was YES. [2024-06-27 19:40:57,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42903 conditions, 17259 events. 10722/17259 cut-off events. For 12413/13339 co-relation queries the response was YES. Maximal size of possible extension queue 611. Compared 117479 event pairs, 3439 based on Foata normal form. 393/17194 useless extension candidates. Maximal degree in co-relation 42884. Up to 9233 conditions per place. [2024-06-27 19:40:57,680 INFO L140 encePairwiseOnDemand]: 52/60 looper letters, 68 selfloop transitions, 16 changer transitions 0/98 dead transitions. [2024-06-27 19:40:57,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 98 transitions, 550 flow [2024-06-27 19:40:57,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:40:57,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:40:57,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2024-06-27 19:40:57,682 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6722222222222223 [2024-06-27 19:40:57,682 INFO L175 Difference]: Start difference. First operand has 58 places, 62 transitions, 255 flow. Second operand 3 states and 121 transitions. [2024-06-27 19:40:57,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 98 transitions, 550 flow [2024-06-27 19:40:57,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 98 transitions, 542 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-06-27 19:40:57,707 INFO L231 Difference]: Finished difference. Result has 60 places, 72 transitions, 354 flow [2024-06-27 19:40:57,707 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=354, PETRI_PLACES=60, PETRI_TRANSITIONS=72} [2024-06-27 19:40:57,708 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -1 predicate places. [2024-06-27 19:40:57,708 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 72 transitions, 354 flow [2024-06-27 19:40:57,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-06-27 19:40:57,708 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:40:57,709 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:40:57,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 19:40:57,709 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 19:40:57,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:40:57,709 INFO L85 PathProgramCache]: Analyzing trace with hash 2002919975, now seen corresponding path program 1 times [2024-06-27 19:40:57,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:40:57,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099931926] [2024-06-27 19:40:57,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:40:57,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:40:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:40:57,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:40:57,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:40:57,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099931926] [2024-06-27 19:40:57,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099931926] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:40:57,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:40:57,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 19:40:57,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708566736] [2024-06-27 19:40:57,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:40:57,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 19:40:57,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:40:57,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 19:40:57,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-27 19:40:57,918 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 60 [2024-06-27 19:40:57,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 72 transitions, 354 flow. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 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) [2024-06-27 19:40:57,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:40:57,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 60 [2024-06-27 19:40:57,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:41:00,443 INFO L124 PetriNetUnfolderBase]: 24063/36381 cut-off events. [2024-06-27 19:41:00,443 INFO L125 PetriNetUnfolderBase]: For 52292/52863 co-relation queries the response was YES. [2024-06-27 19:41:00,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109004 conditions, 36381 events. 24063/36381 cut-off events. For 52292/52863 co-relation queries the response was YES. Maximal size of possible extension queue 1120. Compared 251928 event pairs, 5352 based on Foata normal form. 147/35996 useless extension candidates. Maximal degree in co-relation 108983. Up to 10692 conditions per place. [2024-06-27 19:41:00,609 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 175 selfloop transitions, 23 changer transitions 0/207 dead transitions. [2024-06-27 19:41:00,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 207 transitions, 1352 flow [2024-06-27 19:41:00,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 19:41:00,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 19:41:00,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 256 transitions. [2024-06-27 19:41:00,612 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6095238095238096 [2024-06-27 19:41:00,612 INFO L175 Difference]: Start difference. First operand has 60 places, 72 transitions, 354 flow. Second operand 7 states and 256 transitions. [2024-06-27 19:41:00,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 207 transitions, 1352 flow [2024-06-27 19:41:00,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 207 transitions, 1307 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 19:41:00,641 INFO L231 Difference]: Finished difference. Result has 70 places, 87 transitions, 526 flow [2024-06-27 19:41:00,641 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=526, PETRI_PLACES=70, PETRI_TRANSITIONS=87} [2024-06-27 19:41:00,643 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 9 predicate places. [2024-06-27 19:41:00,643 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 87 transitions, 526 flow [2024-06-27 19:41:00,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 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) [2024-06-27 19:41:00,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:41:00,643 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] [2024-06-27 19:41:00,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 19:41:00,644 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 19:41:00,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:41:00,644 INFO L85 PathProgramCache]: Analyzing trace with hash 2006274031, now seen corresponding path program 1 times [2024-06-27 19:41:00,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:41:00,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702351540] [2024-06-27 19:41:00,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:41:00,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:41:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:41:00,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:41:00,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:41:00,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702351540] [2024-06-27 19:41:00,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702351540] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:41:00,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:41:00,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 19:41:00,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863704983] [2024-06-27 19:41:00,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:41:00,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 19:41:00,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:41:00,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 19:41:00,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-27 19:41:00,849 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 60 [2024-06-27 19:41:00,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 87 transitions, 526 flow. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 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) [2024-06-27 19:41:00,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:41:00,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 60 [2024-06-27 19:41:00,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:41:04,579 INFO L124 PetriNetUnfolderBase]: 32748/50082 cut-off events. [2024-06-27 19:41:04,580 INFO L125 PetriNetUnfolderBase]: For 128862/129597 co-relation queries the response was YES. [2024-06-27 19:41:04,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159926 conditions, 50082 events. 32748/50082 cut-off events. For 128862/129597 co-relation queries the response was YES. Maximal size of possible extension queue 1130. Compared 353879 event pairs, 7921 based on Foata normal form. 1940/51552 useless extension candidates. Maximal degree in co-relation 159898. Up to 15552 conditions per place. [2024-06-27 19:41:05,015 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 160 selfloop transitions, 30 changer transitions 0/200 dead transitions. [2024-06-27 19:41:05,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 200 transitions, 1442 flow [2024-06-27 19:41:05,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 19:41:05,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 19:41:05,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 229 transitions. [2024-06-27 19:41:05,020 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6361111111111111 [2024-06-27 19:41:05,020 INFO L175 Difference]: Start difference. First operand has 70 places, 87 transitions, 526 flow. Second operand 6 states and 229 transitions. [2024-06-27 19:41:05,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 200 transitions, 1442 flow [2024-06-27 19:41:05,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 200 transitions, 1436 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-06-27 19:41:05,139 INFO L231 Difference]: Finished difference. Result has 78 places, 97 transitions, 718 flow [2024-06-27 19:41:05,139 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=520, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=718, PETRI_PLACES=78, PETRI_TRANSITIONS=97} [2024-06-27 19:41:05,140 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 17 predicate places. [2024-06-27 19:41:05,140 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 97 transitions, 718 flow [2024-06-27 19:41:05,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 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) [2024-06-27 19:41:05,140 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:41:05,140 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] [2024-06-27 19:41:05,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 19:41:05,141 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 19:41:05,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:41:05,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1372385419, now seen corresponding path program 1 times [2024-06-27 19:41:05,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:41:05,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703998982] [2024-06-27 19:41:05,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:41:05,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:41:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:41:05,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:41:05,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:41:05,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703998982] [2024-06-27 19:41:05,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703998982] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:41:05,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:41:05,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-27 19:41:05,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160925650] [2024-06-27 19:41:05,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:41:05,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-27 19:41:05,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:41:05,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-27 19:41:05,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-27 19:41:05,337 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 60 [2024-06-27 19:41:05,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 97 transitions, 718 flow. Second operand has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 9 states have internal predecessors, (152), 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) [2024-06-27 19:41:05,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:41:05,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 60 [2024-06-27 19:41:05,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:41:11,818 INFO L124 PetriNetUnfolderBase]: 52366/80679 cut-off events. [2024-06-27 19:41:11,818 INFO L125 PetriNetUnfolderBase]: For 272428/273353 co-relation queries the response was YES. [2024-06-27 19:41:12,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273562 conditions, 80679 events. 52366/80679 cut-off events. For 272428/273353 co-relation queries the response was YES. Maximal size of possible extension queue 1501. Compared 605901 event pairs, 6341 based on Foata normal form. 1731/81993 useless extension candidates. Maximal degree in co-relation 273528. Up to 17054 conditions per place. [2024-06-27 19:41:12,281 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 241 selfloop transitions, 87 changer transitions 2/339 dead transitions. [2024-06-27 19:41:12,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 339 transitions, 2699 flow [2024-06-27 19:41:12,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-06-27 19:41:12,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-06-27 19:41:12,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 428 transitions. [2024-06-27 19:41:12,284 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5944444444444444 [2024-06-27 19:41:12,284 INFO L175 Difference]: Start difference. First operand has 78 places, 97 transitions, 718 flow. Second operand 12 states and 428 transitions. [2024-06-27 19:41:12,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 339 transitions, 2699 flow [2024-06-27 19:41:12,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 339 transitions, 2687 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-06-27 19:41:12,789 INFO L231 Difference]: Finished difference. Result has 97 places, 150 transitions, 1609 flow [2024-06-27 19:41:12,789 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=714, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1609, PETRI_PLACES=97, PETRI_TRANSITIONS=150} [2024-06-27 19:41:12,790 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 36 predicate places. [2024-06-27 19:41:12,790 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 150 transitions, 1609 flow [2024-06-27 19:41:12,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 9 states have internal predecessors, (152), 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) [2024-06-27 19:41:12,791 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:41:12,791 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] [2024-06-27 19:41:12,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 19:41:12,791 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 19:41:12,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:41:12,791 INFO L85 PathProgramCache]: Analyzing trace with hash -392731126, now seen corresponding path program 1 times [2024-06-27 19:41:12,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:41:12,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887414830] [2024-06-27 19:41:12,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:41:12,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:41:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:41:13,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:41:13,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:41:13,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887414830] [2024-06-27 19:41:13,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887414830] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:41:13,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:41:13,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-27 19:41:13,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587365508] [2024-06-27 19:41:13,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:41:13,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-27 19:41:13,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:41:13,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-27 19:41:13,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-06-27 19:41:13,275 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 60 [2024-06-27 19:41:13,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 150 transitions, 1609 flow. Second operand has 11 states, 11 states have (on average 16.636363636363637) internal successors, (183), 11 states have internal predecessors, (183), 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) [2024-06-27 19:41:13,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:41:13,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 60 [2024-06-27 19:41:13,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:41:23,467 INFO L124 PetriNetUnfolderBase]: 64920/102512 cut-off events. [2024-06-27 19:41:23,467 INFO L125 PetriNetUnfolderBase]: For 660036/662919 co-relation queries the response was YES. [2024-06-27 19:41:23,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 406523 conditions, 102512 events. 64920/102512 cut-off events. For 660036/662919 co-relation queries the response was YES. Maximal size of possible extension queue 2152. Compared 827967 event pairs, 9706 based on Foata normal form. 1406/103448 useless extension candidates. Maximal degree in co-relation 406478. Up to 67164 conditions per place. [2024-06-27 19:41:24,206 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 356 selfloop transitions, 97 changer transitions 0/462 dead transitions. [2024-06-27 19:41:24,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 462 transitions, 4265 flow [2024-06-27 19:41:24,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-06-27 19:41:24,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-06-27 19:41:24,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 579 transitions. [2024-06-27 19:41:24,212 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5676470588235294 [2024-06-27 19:41:24,212 INFO L175 Difference]: Start difference. First operand has 97 places, 150 transitions, 1609 flow. Second operand 17 states and 579 transitions. [2024-06-27 19:41:24,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 462 transitions, 4265 flow [2024-06-27 19:41:28,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 462 transitions, 4135 flow, removed 64 selfloop flow, removed 1 redundant places. [2024-06-27 19:41:28,100 INFO L231 Difference]: Finished difference. Result has 122 places, 221 transitions, 2832 flow [2024-06-27 19:41:28,100 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=1379, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2832, PETRI_PLACES=122, PETRI_TRANSITIONS=221} [2024-06-27 19:41:28,100 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 61 predicate places. [2024-06-27 19:41:28,101 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 221 transitions, 2832 flow [2024-06-27 19:41:28,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.636363636363637) internal successors, (183), 11 states have internal predecessors, (183), 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) [2024-06-27 19:41:28,101 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:41:28,101 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] [2024-06-27 19:41:28,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 19:41:28,101 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 19:41:28,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:41:28,102 INFO L85 PathProgramCache]: Analyzing trace with hash 106183732, now seen corresponding path program 1 times [2024-06-27 19:41:28,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:41:28,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374789824] [2024-06-27 19:41:28,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:41:28,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:41:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:41:28,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:41:28,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:41:28,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374789824] [2024-06-27 19:41:28,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374789824] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:41:28,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:41:28,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 19:41:28,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71294092] [2024-06-27 19:41:28,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:41:28,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 19:41:28,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:41:28,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 19:41:28,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-06-27 19:41:28,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 60 [2024-06-27 19:41:28,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 221 transitions, 2832 flow. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:41:28,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:41:28,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 60 [2024-06-27 19:41:28,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:41:28,823 INFO L124 PetriNetUnfolderBase]: 4390/7059 cut-off events. [2024-06-27 19:41:28,823 INFO L125 PetriNetUnfolderBase]: For 43492/43609 co-relation queries the response was YES. [2024-06-27 19:41:28,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26192 conditions, 7059 events. 4390/7059 cut-off events. For 43492/43609 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 39265 event pairs, 757 based on Foata normal form. 239/7229 useless extension candidates. Maximal degree in co-relation 26154. Up to 5505 conditions per place. [2024-06-27 19:41:28,852 INFO L140 encePairwiseOnDemand]: 55/60 looper letters, 0 selfloop transitions, 0 changer transitions 68/68 dead transitions. [2024-06-27 19:41:28,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 68 transitions, 570 flow [2024-06-27 19:41:28,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 19:41:28,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 19:41:28,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2024-06-27 19:41:28,853 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-06-27 19:41:28,853 INFO L175 Difference]: Start difference. First operand has 122 places, 221 transitions, 2832 flow. Second operand 4 states and 130 transitions. [2024-06-27 19:41:28,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 68 transitions, 570 flow [2024-06-27 19:41:28,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 68 transitions, 391 flow, removed 17 selfloop flow, removed 33 redundant places. [2024-06-27 19:41:28,978 INFO L231 Difference]: Finished difference. Result has 71 places, 0 transitions, 0 flow [2024-06-27 19:41:28,978 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=71, PETRI_TRANSITIONS=0} [2024-06-27 19:41:28,978 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 10 predicate places. [2024-06-27 19:41:28,979 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 0 transitions, 0 flow [2024-06-27 19:41:28,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 19:41:28,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-27 19:41:28,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-27 19:41:28,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-27 19:41:28,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-27 19:41:28,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-27 19:41:28,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-27 19:41:28,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 19:41:28,984 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:41:28,986 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 19:41:28,986 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 19:41:28,989 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-27 19:41:28,989 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-27 19:41:28,990 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 07:41:28 BasicIcfg [2024-06-27 19:41:28,990 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 19:41:28,990 INFO L158 Benchmark]: Toolchain (without parser) took 37138.03ms. Allocated memory was 192.9MB in the beginning and 13.9GB in the end (delta: 13.7GB). Free memory was 156.9MB in the beginning and 11.6GB in the end (delta: -11.5GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. [2024-06-27 19:41:28,990 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 125.8MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 19:41:28,990 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 192.9MB. Free memory is still 161.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 19:41:28,991 INFO L158 Benchmark]: CACSL2BoogieTranslator took 587.62ms. Allocated memory is still 192.9MB. Free memory was 156.9MB in the beginning and 115.7MB in the end (delta: 41.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-06-27 19:41:28,991 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.15ms. Allocated memory is still 192.9MB. Free memory was 114.9MB in the beginning and 112.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 19:41:28,991 INFO L158 Benchmark]: Boogie Preprocessor took 79.64ms. Allocated memory is still 192.9MB. Free memory was 112.8MB in the beginning and 108.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-27 19:41:28,991 INFO L158 Benchmark]: RCFGBuilder took 539.66ms. Allocated memory is still 192.9MB. Free memory was 108.6MB in the beginning and 124.2MB in the end (delta: -15.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-06-27 19:41:28,992 INFO L158 Benchmark]: TraceAbstraction took 35884.73ms. Allocated memory was 192.9MB in the beginning and 13.9GB in the end (delta: 13.7GB). Free memory was 124.2MB in the beginning and 11.6GB in the end (delta: -11.5GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. [2024-06-27 19:41:28,993 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 125.8MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.14ms. Allocated memory is still 192.9MB. Free memory is still 161.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 587.62ms. Allocated memory is still 192.9MB. Free memory was 156.9MB in the beginning and 115.7MB in the end (delta: 41.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.15ms. Allocated memory is still 192.9MB. Free memory was 114.9MB in the beginning and 112.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.64ms. Allocated memory is still 192.9MB. Free memory was 112.8MB in the beginning and 108.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 539.66ms. Allocated memory is still 192.9MB. Free memory was 108.6MB in the beginning and 124.2MB in the end (delta: -15.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 35884.73ms. Allocated memory was 192.9MB in the beginning and 13.9GB in the end (delta: 13.7GB). Free memory was 124.2MB in the beginning and 11.6GB in the end (delta: -11.5GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1203]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1204]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1205]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 89 locations, 6 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: 35.8s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 33.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 958 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 944 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 161 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2531 IncrementalHoareTripleChecker+Invalid, 2692 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 161 mSolverCounterUnsat, 21 mSDtfsCounter, 2531 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2832occurred in iteration=7, InterpolantAutomatonStates: 59, 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, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 923 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-27 19:41:29,016 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