./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.2024-05-21_14-57-05.files/protection/13-privatized_04-priv_multi_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 76401ed0 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.2024-05-21_14-57-05.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-76401ed-m [2024-06-20 15:36:18,774 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-20 15:36:18,819 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-20 15:36:18,823 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-20 15:36:18,823 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-20 15:36:18,861 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-20 15:36:18,863 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-20 15:36:18,863 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-20 15:36:18,864 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-20 15:36:18,868 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-20 15:36:18,868 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-20 15:36:18,868 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-20 15:36:18,869 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-20 15:36:18,870 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-20 15:36:18,871 INFO L153 SettingsManager]: * Use SBE=true [2024-06-20 15:36:18,871 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-20 15:36:18,871 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-20 15:36:18,872 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-20 15:36:18,872 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-20 15:36:18,872 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-20 15:36:18,872 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-20 15:36:18,873 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-20 15:36:18,873 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-20 15:36:18,873 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-20 15:36:18,873 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-20 15:36:18,874 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-20 15:36:18,874 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-20 15:36:18,874 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-20 15:36:18,875 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-20 15:36:18,875 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-20 15:36:18,876 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-20 15:36:18,876 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-20 15:36:18,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 15:36:18,877 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-20 15:36:18,877 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-20 15:36:18,892 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-20 15:36:18,893 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-20 15:36:18,893 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-20 15:36:18,894 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-20 15:36:18,894 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-20 15:36:18,894 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-20 15:36:18,894 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-20 15:36:18,895 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-20 15:36:18,895 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-20 15:36:19,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-20 15:36:19,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-20 15:36:19,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-20 15:36:19,131 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-20 15:36:19,132 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-20 15:36:19,133 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/protection/13-privatized_04-priv_multi_true.yml/witness.yml [2024-06-20 15:36:19,254 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-20 15:36:19,255 INFO L274 PluginConnector]: CDTParser initialized [2024-06-20 15:36:19,255 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_04-priv_multi_true.i [2024-06-20 15:36:20,289 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-20 15:36:20,490 INFO L384 CDTParser]: Found 1 translation units. [2024-06-20 15:36:20,500 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_04-priv_multi_true.i [2024-06-20 15:36:20,514 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c33b7ff22/7e6035b6538341b89092378226b1d334/FLAGe99169927 [2024-06-20 15:36:20,526 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c33b7ff22/7e6035b6538341b89092378226b1d334 [2024-06-20 15:36:20,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-20 15:36:20,529 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-20 15:36:20,532 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-20 15:36:20,532 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-20 15:36:20,537 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-20 15:36:20,537 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 03:36:19" (1/2) ... [2024-06-20 15:36:20,538 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e9d44de and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 03:36:20, skipping insertion in model container [2024-06-20 15:36:20,539 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 03:36:19" (1/2) ... [2024-06-20 15:36:20,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@45a12b7a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 03:36:20, skipping insertion in model container [2024-06-20 15:36:20,541 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 03:36:20" (2/2) ... [2024-06-20 15:36:20,541 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e9d44de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:20, skipping insertion in model container [2024-06-20 15:36:20,541 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 03:36:20" (2/2) ... [2024-06-20 15:36:20,542 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-20 15:36:20,603 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-20 15:36:20,604 INFO L97 edCorrectnessWitness]: Location invariant before [L1204-L1204] (((! multithreaded || (((((0 <= B && 5 <= B) && B <= 6) && B <= 127) && B != 0) && (B == 5 || B == 6))) && (! multithreaded || (mutex_B_locked || (mutex_A_locked || B == 5)))) && (! multithreaded || (mutex_A_locked || A == 5))) && (! multithreaded || (1 <= A && A <= 100)) [2024-06-20 15:36:20,604 INFO L97 edCorrectnessWitness]: Location invariant before [L1205-L1212] (((! multithreaded || (((((0 <= B && 5 <= B) && B <= 6) && B <= 127) && B != 0) && (B == 5 || B == 6))) && (! multithreaded || (mutex_B_locked || (mutex_A_locked || B == 5)))) && (! multithreaded || (mutex_A_locked || A == 5))) && (! multithreaded || (1 <= A && A <= 100)) [2024-06-20 15:36:20,604 INFO L97 edCorrectnessWitness]: Location invariant before [L1203-L1203] (((! multithreaded || (((((0 <= B && 5 <= B) && B <= 6) && B <= 127) && B != 0) && (B == 5 || B == 6))) && (! multithreaded || (mutex_B_locked || (mutex_A_locked || B == 5)))) && (! multithreaded || (mutex_A_locked || A == 5))) && (! multithreaded || (1 <= A && A <= 100)) [2024-06-20 15:36:20,605 INFO L103 edCorrectnessWitness]: ghost_variable mutex_A_locked = 0 [2024-06-20 15:36:20,605 INFO L103 edCorrectnessWitness]: ghost_variable mutex_B_locked = 0 [2024-06-20 15:36:20,606 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-20 15:36:20,606 INFO L106 edCorrectnessWitness]: ghost_update [L1187-L1187] mutex_B_locked = 1; [2024-06-20 15:36:20,606 INFO L106 edCorrectnessWitness]: ghost_update [L1190-L1190] mutex_B_locked = 0; [2024-06-20 15:36:20,606 INFO L106 edCorrectnessWitness]: ghost_update [L1171-L1171] mutex_B_locked = 1; [2024-06-20 15:36:20,606 INFO L106 edCorrectnessWitness]: ghost_update [L1206-L1206] mutex_A_locked = 1; [2024-06-20 15:36:20,607 INFO L106 edCorrectnessWitness]: ghost_update [L1209-L1209] mutex_B_locked = 0; [2024-06-20 15:36:20,607 INFO L106 edCorrectnessWitness]: ghost_update [L1207-L1207] mutex_B_locked = 1; [2024-06-20 15:36:20,607 INFO L106 edCorrectnessWitness]: ghost_update [L1176-L1176] mutex_A_locked = 0; [2024-06-20 15:36:20,607 INFO L106 edCorrectnessWitness]: ghost_update [L1168-L1168] mutex_A_locked = 1; [2024-06-20 15:36:20,607 INFO L106 edCorrectnessWitness]: ghost_update [L1161-L1161] mutex_A_locked = 0; [2024-06-20 15:36:20,607 INFO L106 edCorrectnessWitness]: ghost_update [L1210-L1210] mutex_A_locked = 0; [2024-06-20 15:36:20,608 INFO L106 edCorrectnessWitness]: ghost_update [L1174-L1174] mutex_B_locked = 0; [2024-06-20 15:36:20,608 INFO L106 edCorrectnessWitness]: ghost_update [L1158-L1158] mutex_A_locked = 1; [2024-06-20 15:36:20,608 INFO L106 edCorrectnessWitness]: ghost_update [L1202-L1202] multithreaded = 1; [2024-06-20 15:36:20,655 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-20 15:36:21,040 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 15:36:21,053 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 [2024-06-20 15:36:21,176 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 15:36:21,256 INFO L206 MainTranslator]: Completed translation [2024-06-20 15:36:21,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:21 WrapperNode [2024-06-20 15:36:21,259 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-20 15:36:21,260 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-20 15:36:21,260 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-20 15:36:21,260 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-20 15:36:21,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:21" (1/1) ... [2024-06-20 15:36:21,295 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:21" (1/1) ... [2024-06-20 15:36:21,318 INFO L138 Inliner]: procedures = 271, calls = 38, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 118 [2024-06-20 15:36:21,318 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-20 15:36:21,319 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-20 15:36:21,319 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-20 15:36:21,319 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-20 15:36:21,329 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:21" (1/1) ... [2024-06-20 15:36:21,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:21" (1/1) ... [2024-06-20 15:36:21,338 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:21" (1/1) ... [2024-06-20 15:36:21,362 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]. [2024-06-20 15:36:21,366 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:21" (1/1) ... [2024-06-20 15:36:21,367 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:21" (1/1) ... [2024-06-20 15:36:21,381 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:21" (1/1) ... [2024-06-20 15:36:21,406 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:21" (1/1) ... [2024-06-20 15:36:21,409 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:21" (1/1) ... [2024-06-20 15:36:21,411 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:21" (1/1) ... [2024-06-20 15:36:21,415 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-20 15:36:21,416 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-20 15:36:21,416 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-20 15:36:21,416 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-20 15:36:21,417 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:21" (1/1) ... [2024-06-20 15:36:21,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 15:36:21,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-20 15:36:21,457 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) [2024-06-20 15:36:21,468 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 [2024-06-20 15:36:21,490 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2024-06-20 15:36:21,491 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2024-06-20 15:36:21,493 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-20 15:36:21,493 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-20 15:36:21,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-20 15:36:21,494 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2024-06-20 15:36:21,494 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2024-06-20 15:36:21,494 INFO L130 BoogieDeclarations]: Found specification of procedure process [2024-06-20 15:36:21,495 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2024-06-20 15:36:21,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-20 15:36:21,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-20 15:36:21,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-20 15:36:21,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-20 15:36:21,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-20 15:36:21,498 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-20 15:36:21,764 INFO L244 CfgBuilder]: Building ICFG [2024-06-20 15:36:21,766 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-20 15:36:22,009 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-20 15:36:22,009 INFO L293 CfgBuilder]: Performing block encoding [2024-06-20 15:36:22,139 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-20 15:36:22,145 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-06-20 15:36:22,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 03:36:22 BoogieIcfgContainer [2024-06-20 15:36:22,146 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-20 15:36:22,147 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-20 15:36:22,148 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-20 15:36:22,151 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-20 15:36:22,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 03:36:19" (1/4) ... [2024-06-20 15:36:22,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1308f3e2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.06 03:36:22, skipping insertion in model container [2024-06-20 15:36:22,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.06 03:36:20" (2/4) ... [2024-06-20 15:36:22,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1308f3e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 03:36:22, skipping insertion in model container [2024-06-20 15:36:22,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 03:36:21" (3/4) ... [2024-06-20 15:36:22,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1308f3e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 03:36:22, skipping insertion in model container [2024-06-20 15:36:22,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 03:36:22" (4/4) ... [2024-06-20 15:36:22,155 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2024-06-20 15:36:22,171 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-20 15:36:22,172 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-20 15:36:22,172 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-20 15:36:22,219 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-20 15:36:22,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 60 transitions, 132 flow [2024-06-20 15:36:22,291 INFO L124 PetriNetUnfolderBase]: 6/57 cut-off events. [2024-06-20 15:36:22,291 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-20 15:36:22,295 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. [2024-06-20 15:36:22,295 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 60 transitions, 132 flow [2024-06-20 15:36:22,300 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 57 transitions, 123 flow [2024-06-20 15:36:22,314 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-20 15:36:22,327 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;@3d6ddedb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-20 15:36:22,327 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-20 15:36:22,331 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-20 15:36:22,332 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-20 15:36:22,332 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-20 15:36:22,332 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 15:36:22,333 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-20 15:36:22,333 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)] === [2024-06-20 15:36:22,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 15:36:22,338 INFO L85 PathProgramCache]: Analyzing trace with hash 420320376, now seen corresponding path program 1 times [2024-06-20 15:36:22,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 15:36:22,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13805840] [2024-06-20 15:36:22,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 15:36:22,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 15:36:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 15:36:22,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 15:36:22,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 15:36:22,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13805840] [2024-06-20 15:36:22,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13805840] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 15:36:22,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 15:36:22,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-20 15:36:22,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975521573] [2024-06-20 15:36:22,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 15:36:22,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-20 15:36:22,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 15:36:22,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-20 15:36:22,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-20 15:36:22,913 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 60 [2024-06-20 15:36:22,916 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) [2024-06-20 15:36:22,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 15:36:22,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 60 [2024-06-20 15:36:22,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 15:36:24,822 INFO L124 PetriNetUnfolderBase]: 13699/19840 cut-off events. [2024-06-20 15:36:24,823 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-06-20 15:36:24,857 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. [2024-06-20 15:36:24,898 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 50 selfloop transitions, 2 changer transitions 17/79 dead transitions. [2024-06-20 15:36:24,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 79 transitions, 302 flow [2024-06-20 15:36:24,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-20 15:36:24,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-20 15:36:24,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 123 transitions. [2024-06-20 15:36:24,910 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6833333333333333 [2024-06-20 15:36:24,912 INFO L175 Difference]: Start difference. First operand has 61 places, 57 transitions, 123 flow. Second operand 3 states and 123 transitions. [2024-06-20 15:36:24,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 79 transitions, 302 flow [2024-06-20 15:36:24,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 79 transitions, 298 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-20 15:36:24,923 INFO L231 Difference]: Finished difference. Result has 58 places, 45 transitions, 112 flow [2024-06-20 15:36:24,925 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} [2024-06-20 15:36:24,928 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -3 predicate places. [2024-06-20 15:36:24,928 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 45 transitions, 112 flow [2024-06-20 15:36:24,929 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) [2024-06-20 15:36:24,929 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 15:36:24,929 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 15:36:24,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-20 15:36:24,930 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)] === [2024-06-20 15:36:24,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 15:36:24,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1086374682, now seen corresponding path program 1 times [2024-06-20 15:36:24,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 15:36:24,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95321054] [2024-06-20 15:36:24,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 15:36:24,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 15:36:24,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 15:36:25,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 15:36:25,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 15:36:25,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95321054] [2024-06-20 15:36:25,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95321054] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 15:36:25,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 15:36:25,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-20 15:36:25,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965808009] [2024-06-20 15:36:25,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 15:36:25,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-20 15:36:25,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 15:36:25,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-20 15:36:25,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-20 15:36:25,203 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 60 [2024-06-20 15:36:25,204 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) [2024-06-20 15:36:25,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 15:36:25,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 60 [2024-06-20 15:36:25,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 15:36:26,563 INFO L124 PetriNetUnfolderBase]: 8998/13854 cut-off events. [2024-06-20 15:36:26,564 INFO L125 PetriNetUnfolderBase]: For 1547/1547 co-relation queries the response was YES. [2024-06-20 15:36:26,585 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. [2024-06-20 15:36:26,636 INFO L140 encePairwiseOnDemand]: 46/60 looper letters, 117 selfloop transitions, 19 changer transitions 0/145 dead transitions. [2024-06-20 15:36:26,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 145 transitions, 601 flow [2024-06-20 15:36:26,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-20 15:36:26,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-20 15:36:26,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 251 transitions. [2024-06-20 15:36:26,649 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5976190476190476 [2024-06-20 15:36:26,649 INFO L175 Difference]: Start difference. First operand has 58 places, 45 transitions, 112 flow. Second operand 7 states and 251 transitions. [2024-06-20 15:36:26,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 145 transitions, 601 flow [2024-06-20 15:36:26,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 145 transitions, 598 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-20 15:36:26,654 INFO L231 Difference]: Finished difference. Result has 58 places, 62 transitions, 255 flow [2024-06-20 15:36:26,654 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} [2024-06-20 15:36:26,654 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -3 predicate places. [2024-06-20 15:36:26,655 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 62 transitions, 255 flow [2024-06-20 15:36:26,655 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) [2024-06-20 15:36:26,655 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 15:36:26,655 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 15:36:26,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-20 15:36:26,656 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)] === [2024-06-20 15:36:26,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 15:36:26,656 INFO L85 PathProgramCache]: Analyzing trace with hash -805728438, now seen corresponding path program 1 times [2024-06-20 15:36:26,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 15:36:26,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396596976] [2024-06-20 15:36:26,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 15:36:26,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 15:36:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 15:36:26,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 15:36:26,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 15:36:26,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396596976] [2024-06-20 15:36:26,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396596976] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 15:36:26,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 15:36:26,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-20 15:36:26,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804774734] [2024-06-20 15:36:26,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 15:36:26,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-20 15:36:26,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 15:36:26,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-20 15:36:26,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-20 15:36:26,779 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 60 [2024-06-20 15:36:26,780 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) [2024-06-20 15:36:26,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 15:36:26,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 60 [2024-06-20 15:36:26,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 15:36:28,273 INFO L124 PetriNetUnfolderBase]: 10722/17259 cut-off events. [2024-06-20 15:36:28,273 INFO L125 PetriNetUnfolderBase]: For 12413/13339 co-relation queries the response was YES. [2024-06-20 15:36:28,317 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. [2024-06-20 15:36:28,391 INFO L140 encePairwiseOnDemand]: 52/60 looper letters, 68 selfloop transitions, 16 changer transitions 0/98 dead transitions. [2024-06-20 15:36:28,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 98 transitions, 550 flow [2024-06-20 15:36:28,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-20 15:36:28,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-20 15:36:28,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2024-06-20 15:36:28,393 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6722222222222223 [2024-06-20 15:36:28,394 INFO L175 Difference]: Start difference. First operand has 58 places, 62 transitions, 255 flow. Second operand 3 states and 121 transitions. [2024-06-20 15:36:28,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 98 transitions, 550 flow [2024-06-20 15:36:28,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 98 transitions, 542 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-06-20 15:36:28,428 INFO L231 Difference]: Finished difference. Result has 60 places, 72 transitions, 354 flow [2024-06-20 15:36:28,428 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} [2024-06-20 15:36:28,430 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -1 predicate places. [2024-06-20 15:36:28,430 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 72 transitions, 354 flow [2024-06-20 15:36:28,430 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) [2024-06-20 15:36:28,430 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 15:36:28,430 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 15:36:28,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-20 15:36:28,431 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)] === [2024-06-20 15:36:28,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 15:36:28,431 INFO L85 PathProgramCache]: Analyzing trace with hash 2002919975, now seen corresponding path program 1 times [2024-06-20 15:36:28,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 15:36:28,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887765010] [2024-06-20 15:36:28,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 15:36:28,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 15:36:28,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 15:36:28,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 15:36:28,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 15:36:28,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887765010] [2024-06-20 15:36:28,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887765010] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 15:36:28,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 15:36:28,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-20 15:36:28,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410741401] [2024-06-20 15:36:28,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 15:36:28,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-20 15:36:28,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 15:36:28,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-20 15:36:28,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-20 15:36:28,948 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 60 [2024-06-20 15:36:28,949 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) [2024-06-20 15:36:28,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 15:36:28,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 60 [2024-06-20 15:36:28,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 15:36:31,850 INFO L124 PetriNetUnfolderBase]: 24063/36381 cut-off events. [2024-06-20 15:36:31,851 INFO L125 PetriNetUnfolderBase]: For 52292/52863 co-relation queries the response was YES. [2024-06-20 15:36:31,961 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. [2024-06-20 15:36:32,123 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 175 selfloop transitions, 23 changer transitions 0/207 dead transitions. [2024-06-20 15:36:32,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 207 transitions, 1352 flow [2024-06-20 15:36:32,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-20 15:36:32,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-20 15:36:32,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 256 transitions. [2024-06-20 15:36:32,125 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6095238095238096 [2024-06-20 15:36:32,125 INFO L175 Difference]: Start difference. First operand has 60 places, 72 transitions, 354 flow. Second operand 7 states and 256 transitions. [2024-06-20 15:36:32,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 207 transitions, 1352 flow [2024-06-20 15:36:32,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 207 transitions, 1307 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-20 15:36:32,163 INFO L231 Difference]: Finished difference. Result has 70 places, 87 transitions, 526 flow [2024-06-20 15:36:32,163 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} [2024-06-20 15:36:32,165 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 9 predicate places. [2024-06-20 15:36:32,165 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 87 transitions, 526 flow [2024-06-20 15:36:32,165 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) [2024-06-20 15:36:32,165 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 15:36:32,166 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] [2024-06-20 15:36:32,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-20 15:36:32,166 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)] === [2024-06-20 15:36:32,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 15:36:32,167 INFO L85 PathProgramCache]: Analyzing trace with hash 2006274031, now seen corresponding path program 1 times [2024-06-20 15:36:32,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 15:36:32,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516971016] [2024-06-20 15:36:32,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 15:36:32,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 15:36:32,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 15:36:32,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 15:36:32,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 15:36:32,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516971016] [2024-06-20 15:36:32,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516971016] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 15:36:32,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 15:36:32,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-20 15:36:32,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538866295] [2024-06-20 15:36:32,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 15:36:32,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-20 15:36:32,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 15:36:32,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-20 15:36:32,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-20 15:36:32,654 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 60 [2024-06-20 15:36:32,654 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) [2024-06-20 15:36:32,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 15:36:32,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 60 [2024-06-20 15:36:32,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 15:36:36,924 INFO L124 PetriNetUnfolderBase]: 32748/50082 cut-off events. [2024-06-20 15:36:36,930 INFO L125 PetriNetUnfolderBase]: For 128862/129597 co-relation queries the response was YES. [2024-06-20 15:36:37,075 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. [2024-06-20 15:36:37,305 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 160 selfloop transitions, 30 changer transitions 0/200 dead transitions. [2024-06-20 15:36:37,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 200 transitions, 1442 flow [2024-06-20 15:36:37,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-20 15:36:37,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-20 15:36:37,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 229 transitions. [2024-06-20 15:36:37,307 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6361111111111111 [2024-06-20 15:36:37,307 INFO L175 Difference]: Start difference. First operand has 70 places, 87 transitions, 526 flow. Second operand 6 states and 229 transitions. [2024-06-20 15:36:37,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 200 transitions, 1442 flow [2024-06-20 15:36:37,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 200 transitions, 1436 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-06-20 15:36:37,515 INFO L231 Difference]: Finished difference. Result has 78 places, 97 transitions, 718 flow [2024-06-20 15:36:37,516 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} [2024-06-20 15:36:37,516 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 17 predicate places. [2024-06-20 15:36:37,517 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 97 transitions, 718 flow [2024-06-20 15:36:37,517 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) [2024-06-20 15:36:37,517 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 15:36:37,517 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] [2024-06-20 15:36:37,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-20 15:36:37,518 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)] === [2024-06-20 15:36:37,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 15:36:37,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1372385419, now seen corresponding path program 1 times [2024-06-20 15:36:37,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 15:36:37,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151860355] [2024-06-20 15:36:37,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 15:36:37,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 15:36:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 15:36:37,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 15:36:37,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 15:36:37,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151860355] [2024-06-20 15:36:37,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151860355] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 15:36:37,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 15:36:37,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-20 15:36:37,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66830479] [2024-06-20 15:36:37,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 15:36:37,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-20 15:36:37,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 15:36:37,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-20 15:36:37,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-20 15:36:37,881 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 60 [2024-06-20 15:36:37,882 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) [2024-06-20 15:36:37,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 15:36:37,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 60 [2024-06-20 15:36:37,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 15:36:45,115 INFO L124 PetriNetUnfolderBase]: 52366/80679 cut-off events. [2024-06-20 15:36:45,116 INFO L125 PetriNetUnfolderBase]: For 272428/273353 co-relation queries the response was YES. [2024-06-20 15:36:45,394 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. [2024-06-20 15:36:45,613 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 241 selfloop transitions, 87 changer transitions 2/339 dead transitions. [2024-06-20 15:36:45,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 339 transitions, 2699 flow [2024-06-20 15:36:45,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-06-20 15:36:45,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-06-20 15:36:45,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 428 transitions. [2024-06-20 15:36:45,615 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5944444444444444 [2024-06-20 15:36:45,615 INFO L175 Difference]: Start difference. First operand has 78 places, 97 transitions, 718 flow. Second operand 12 states and 428 transitions. [2024-06-20 15:36:45,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 339 transitions, 2699 flow [2024-06-20 15:36:46,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 339 transitions, 2687 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-06-20 15:36:46,206 INFO L231 Difference]: Finished difference. Result has 97 places, 150 transitions, 1609 flow [2024-06-20 15:36:46,206 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} [2024-06-20 15:36:46,207 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 36 predicate places. [2024-06-20 15:36:46,207 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 150 transitions, 1609 flow [2024-06-20 15:36:46,207 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) [2024-06-20 15:36:46,208 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 15:36:46,208 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] [2024-06-20 15:36:46,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-20 15:36:46,208 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)] === [2024-06-20 15:36:46,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 15:36:46,208 INFO L85 PathProgramCache]: Analyzing trace with hash -392731126, now seen corresponding path program 1 times [2024-06-20 15:36:46,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 15:36:46,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380643524] [2024-06-20 15:36:46,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 15:36:46,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 15:36:46,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 15:36:46,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 15:36:46,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 15:36:46,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380643524] [2024-06-20 15:36:46,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380643524] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 15:36:46,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 15:36:46,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-20 15:36:46,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41757129] [2024-06-20 15:36:46,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 15:36:46,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-20 15:36:46,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 15:36:46,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-20 15:36:46,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-06-20 15:36:46,879 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 60 [2024-06-20 15:36:46,879 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) [2024-06-20 15:36:46,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 15:36:46,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 60 [2024-06-20 15:36:46,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 15:36:58,236 INFO L124 PetriNetUnfolderBase]: 64920/102512 cut-off events. [2024-06-20 15:36:58,237 INFO L125 PetriNetUnfolderBase]: For 660036/662919 co-relation queries the response was YES. [2024-06-20 15:36:58,790 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. [2024-06-20 15:36:59,072 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 356 selfloop transitions, 97 changer transitions 0/462 dead transitions. [2024-06-20 15:36:59,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 462 transitions, 4265 flow [2024-06-20 15:36:59,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-06-20 15:36:59,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-06-20 15:36:59,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 579 transitions. [2024-06-20 15:36:59,078 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5676470588235294 [2024-06-20 15:36:59,078 INFO L175 Difference]: Start difference. First operand has 97 places, 150 transitions, 1609 flow. Second operand 17 states and 579 transitions. [2024-06-20 15:36:59,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 462 transitions, 4265 flow [2024-06-20 15:37:03,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 462 transitions, 4135 flow, removed 64 selfloop flow, removed 1 redundant places. [2024-06-20 15:37:03,638 INFO L231 Difference]: Finished difference. Result has 122 places, 221 transitions, 2832 flow [2024-06-20 15:37:03,638 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} [2024-06-20 15:37:03,639 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 61 predicate places. [2024-06-20 15:37:03,639 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 221 transitions, 2832 flow [2024-06-20 15:37:03,639 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) [2024-06-20 15:37:03,639 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 15:37:03,640 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] [2024-06-20 15:37:03,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-20 15:37:03,640 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)] === [2024-06-20 15:37:03,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 15:37:03,640 INFO L85 PathProgramCache]: Analyzing trace with hash 106183732, now seen corresponding path program 1 times [2024-06-20 15:37:03,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 15:37:03,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405831192] [2024-06-20 15:37:03,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 15:37:03,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 15:37:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 15:37:03,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 15:37:03,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 15:37:03,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405831192] [2024-06-20 15:37:03,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405831192] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 15:37:03,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 15:37:03,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-20 15:37:03,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062741811] [2024-06-20 15:37:03,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 15:37:03,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-20 15:37:03,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 15:37:03,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-20 15:37:03,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-06-20 15:37:03,786 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 60 [2024-06-20 15:37:03,786 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) [2024-06-20 15:37:03,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 15:37:03,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 60 [2024-06-20 15:37:03,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 15:37:04,400 INFO L124 PetriNetUnfolderBase]: 4390/7059 cut-off events. [2024-06-20 15:37:04,400 INFO L125 PetriNetUnfolderBase]: For 43492/43609 co-relation queries the response was YES. [2024-06-20 15:37:04,426 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. [2024-06-20 15:37:04,431 INFO L140 encePairwiseOnDemand]: 55/60 looper letters, 0 selfloop transitions, 0 changer transitions 68/68 dead transitions. [2024-06-20 15:37:04,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 68 transitions, 570 flow [2024-06-20 15:37:04,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-20 15:37:04,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-20 15:37:04,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2024-06-20 15:37:04,432 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-06-20 15:37:04,432 INFO L175 Difference]: Start difference. First operand has 122 places, 221 transitions, 2832 flow. Second operand 4 states and 130 transitions. [2024-06-20 15:37:04,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 68 transitions, 570 flow [2024-06-20 15:37:04,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 68 transitions, 391 flow, removed 17 selfloop flow, removed 33 redundant places. [2024-06-20 15:37:04,501 INFO L231 Difference]: Finished difference. Result has 71 places, 0 transitions, 0 flow [2024-06-20 15:37:04,501 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} [2024-06-20 15:37:04,501 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 10 predicate places. [2024-06-20 15:37:04,502 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 0 transitions, 0 flow [2024-06-20 15:37:04,502 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) [2024-06-20 15:37:04,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-20 15:37:04,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-20 15:37:04,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-20 15:37:04,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-20 15:37:04,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-20 15:37:04,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-20 15:37:04,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-20 15:37:04,506 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 15:37:04,508 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-20 15:37:04,509 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-20 15:37:04,512 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-20 15:37:04,513 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-20 15:37:04,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.06 03:37:04 BasicIcfg [2024-06-20 15:37:04,513 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-20 15:37:04,514 INFO L158 Benchmark]: Toolchain (without parser) took 43984.94ms. Allocated memory was 172.0MB in the beginning and 14.5GB in the end (delta: 14.3GB). Free memory was 127.4MB in the beginning and 11.7GB in the end (delta: -11.5GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. [2024-06-20 15:37:04,514 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 172.0MB. Free memory is still 141.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 15:37:04,515 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 172.0MB. Free memory is still 136.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 15:37:04,515 INFO L158 Benchmark]: CACSL2BoogieTranslator took 727.59ms. Allocated memory is still 172.0MB. Free memory was 127.4MB in the beginning and 86.1MB in the end (delta: 41.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-06-20 15:37:04,515 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.57ms. Allocated memory is still 172.0MB. Free memory was 85.5MB in the beginning and 82.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-20 15:37:04,516 INFO L158 Benchmark]: Boogie Preprocessor took 96.48ms. Allocated memory is still 172.0MB. Free memory was 82.8MB in the beginning and 79.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-20 15:37:04,516 INFO L158 Benchmark]: RCFGBuilder took 729.88ms. Allocated memory is still 172.0MB. Free memory was 79.2MB in the beginning and 99.0MB in the end (delta: -19.8MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2024-06-20 15:37:04,516 INFO L158 Benchmark]: TraceAbstraction took 42366.10ms. Allocated memory was 172.0MB in the beginning and 14.5GB in the end (delta: 14.3GB). Free memory was 98.1MB in the beginning and 11.7GB in the end (delta: -11.6GB). Peak memory consumption was 2.7GB. Max. memory is 16.1GB. [2024-06-20 15:37:04,519 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.19ms. Allocated memory is still 172.0MB. Free memory is still 141.4MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.17ms. Allocated memory is still 172.0MB. Free memory is still 136.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 727.59ms. Allocated memory is still 172.0MB. Free memory was 127.4MB in the beginning and 86.1MB in the end (delta: 41.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.57ms. Allocated memory is still 172.0MB. Free memory was 85.5MB in the beginning and 82.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 96.48ms. Allocated memory is still 172.0MB. Free memory was 82.8MB in the beginning and 79.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 729.88ms. Allocated memory is still 172.0MB. Free memory was 79.2MB in the beginning and 99.0MB in the end (delta: -19.8MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * TraceAbstraction took 42366.10ms. Allocated memory was 172.0MB in the beginning and 14.5GB in the end (delta: 14.3GB). Free memory was 98.1MB in the beginning and 11.7GB in the end (delta: -11.6GB). Peak memory consumption was 2.7GB. 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: 42.3s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 39.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 958 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 944 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 1.4s 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, 0.4s 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, 2.4s 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! [2024-06-20 15:37:04,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE