./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/mutex-meet/13-privatized_04-priv_multi_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cde23df1 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/mutex-meet/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-cde23df-m [2024-06-14 14:13:38,602 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 14:13:38,661 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 14:13:38,666 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 14:13:38,666 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 14:13:38,688 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 14:13:38,689 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 14:13:38,689 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 14:13:38,689 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 14:13:38,692 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 14:13:38,692 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 14:13:38,692 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 14:13:38,693 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 14:13:38,694 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 14:13:38,694 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 14:13:38,694 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 14:13:38,694 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 14:13:38,694 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 14:13:38,695 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 14:13:38,695 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 14:13:38,695 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 14:13:38,695 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 14:13:38,695 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 14:13:38,695 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 14:13:38,696 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 14:13:38,696 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 14:13:38,696 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 14:13:38,696 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 14:13:38,696 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 14:13:38,696 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 14:13:38,697 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 14:13:38,697 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 14:13:38,697 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:13:38,697 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 14:13:38,698 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 14:13:38,698 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 14:13:38,698 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 14:13:38,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 14:13:38,698 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 14:13:38,698 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 14:13:38,698 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 14:13:38,698 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 14:13:38,698 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 14:13:38,699 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 14:13:38,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 14:13:38,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 14:13:38,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 14:13:38,969 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 14:13:38,969 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 14:13:38,970 INFO L431 ainManager$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 [2024-06-14 14:13:39,842 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 14:13:40,056 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 14:13:40,057 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_04-priv_multi_true.i [2024-06-14 14:13:40,071 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f37f4842/66c26011d41a452a96d1dc32400a7dcf/FLAGe509793ad [2024-06-14 14:13:40,086 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f37f4842/66c26011d41a452a96d1dc32400a7dcf [2024-06-14 14:13:40,089 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 14:13:40,089 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 14:13:40,091 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/13-privatized_04-priv_multi_true.yml/witness.yml [2024-06-14 14:13:40,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 14:13:40,255 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 14:13:40,256 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 14:13:40,256 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 14:13:40,260 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 14:13:40,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:13:40" (1/2) ... [2024-06-14 14:13:40,261 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e278815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:13:40, skipping insertion in model container [2024-06-14 14:13:40,261 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:13:40" (1/2) ... [2024-06-14 14:13:40,262 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@46688983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:13:40, skipping insertion in model container [2024-06-14 14:13:40,263 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:13:40" (2/2) ... [2024-06-14 14:13:40,263 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e278815 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:13:40, skipping insertion in model container [2024-06-14 14:13:40,263 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:13:40" (2/2) ... [2024-06-14 14:13:40,263 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 14:13:40,307 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 14:13:40,308 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 || B == 5))) && (! multithreaded || ((((0 <= A && 1 <= A) && A <= 99) && A <= 127) && A != 0))) && (! multithreaded || (mutex_A_locked || ((((-10LL + (long long )A) + (long long )B >= 0LL && (0LL - (long long )A) + (long long )B >= 0LL) && (10LL - (long long )A) - (long long )B >= 0LL) && (long long )A - (long long )B >= 0LL)))) && (! multithreaded || (mutex_A_locked || (A == 5 && B == 5))) [2024-06-14 14:13:40,309 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 || B == 5))) && (! multithreaded || ((((0 <= A && 1 <= A) && A <= 99) && A <= 127) && A != 0))) && (! multithreaded || (mutex_A_locked || ((((-10LL + (long long )A) + (long long )B >= 0LL && (0LL - (long long )A) + (long long )B >= 0LL) && (10LL - (long long )A) - (long long )B >= 0LL) && (long long )A - (long long )B >= 0LL)))) && (! multithreaded || (mutex_A_locked || (A == 5 && B == 5))) [2024-06-14 14:13:40,309 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 || B == 5))) && (! multithreaded || ((((0 <= A && 1 <= A) && A <= 99) && A <= 127) && A != 0))) && (! multithreaded || (mutex_A_locked || ((((-10LL + (long long )A) + (long long )B >= 0LL && (0LL - (long long )A) + (long long )B >= 0LL) && (10LL - (long long )A) - (long long )B >= 0LL) && (long long )A - (long long )B >= 0LL)))) && (! multithreaded || (mutex_A_locked || (A == 5 && B == 5))) [2024-06-14 14:13:40,309 INFO L103 edCorrectnessWitness]: ghost_variable mutex_A_locked = 0 [2024-06-14 14:13:40,309 INFO L103 edCorrectnessWitness]: ghost_variable mutex_B_locked = 0 [2024-06-14 14:13:40,310 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 14:13:40,310 INFO L106 edCorrectnessWitness]: ghost_update [L1207-L1207] mutex_B_locked = 1; [2024-06-14 14:13:40,310 INFO L106 edCorrectnessWitness]: ghost_update [L1158-L1158] mutex_A_locked = 1; [2024-06-14 14:13:40,310 INFO L106 edCorrectnessWitness]: ghost_update [L1171-L1171] mutex_B_locked = 1; [2024-06-14 14:13:40,310 INFO L106 edCorrectnessWitness]: ghost_update [L1190-L1190] mutex_B_locked = 0; [2024-06-14 14:13:40,310 INFO L106 edCorrectnessWitness]: ghost_update [L1209-L1209] mutex_B_locked = 0; [2024-06-14 14:13:40,310 INFO L106 edCorrectnessWitness]: ghost_update [L1210-L1210] mutex_A_locked = 0; [2024-06-14 14:13:40,311 INFO L106 edCorrectnessWitness]: ghost_update [L1206-L1206] mutex_A_locked = 1; [2024-06-14 14:13:40,311 INFO L106 edCorrectnessWitness]: ghost_update [L1176-L1176] mutex_A_locked = 0; [2024-06-14 14:13:40,311 INFO L106 edCorrectnessWitness]: ghost_update [L1168-L1168] mutex_A_locked = 1; [2024-06-14 14:13:40,311 INFO L106 edCorrectnessWitness]: ghost_update [L1187-L1187] mutex_B_locked = 1; [2024-06-14 14:13:40,311 INFO L106 edCorrectnessWitness]: ghost_update [L1202-L1202] multithreaded = 1; [2024-06-14 14:13:40,311 INFO L106 edCorrectnessWitness]: ghost_update [L1161-L1161] mutex_A_locked = 0; [2024-06-14 14:13:40,311 INFO L106 edCorrectnessWitness]: ghost_update [L1174-L1174] mutex_B_locked = 0; [2024-06-14 14:13:40,350 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 14:13:40,613 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:13:40,621 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 [2024-06-14 14:13:40,708 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:13:40,751 INFO L206 MainTranslator]: Completed translation [2024-06-14 14:13:40,751 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:13:40 WrapperNode [2024-06-14 14:13:40,752 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 14:13:40,752 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 14:13:40,753 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 14:13:40,753 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 14:13:40,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:13:40" (1/1) ... [2024-06-14 14:13:40,773 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:13:40" (1/1) ... [2024-06-14 14:13:40,795 INFO L138 Inliner]: procedures = 271, calls = 38, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 118 [2024-06-14 14:13:40,796 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 14:13:40,796 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 14:13:40,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 14:13:40,796 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 14:13:40,806 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:13:40" (1/1) ... [2024-06-14 14:13:40,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:13:40" (1/1) ... [2024-06-14 14:13:40,809 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:13:40" (1/1) ... [2024-06-14 14:13:40,826 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]. [2024-06-14 14:13:40,827 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:13:40" (1/1) ... [2024-06-14 14:13:40,827 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:13:40" (1/1) ... [2024-06-14 14:13:40,836 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:13:40" (1/1) ... [2024-06-14 14:13:40,853 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:13:40" (1/1) ... [2024-06-14 14:13:40,857 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:13:40" (1/1) ... [2024-06-14 14:13:40,859 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:13:40" (1/1) ... [2024-06-14 14:13:40,864 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 14:13:40,865 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 14:13:40,865 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 14:13:40,865 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 14:13:40,865 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:13:40" (1/1) ... [2024-06-14 14:13:40,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:13:40,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:13:40,891 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) [2024-06-14 14:13:40,892 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 [2024-06-14 14:13:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2024-06-14 14:13:40,923 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2024-06-14 14:13:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-14 14:13:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-14 14:13:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 14:13:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2024-06-14 14:13:40,926 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2024-06-14 14:13:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure process [2024-06-14 14:13:40,926 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2024-06-14 14:13:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-14 14:13:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-14 14:13:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-14 14:13:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 14:13:40,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 14:13:40,929 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-14 14:13:41,205 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 14:13:41,206 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 14:13:41,413 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 14:13:41,414 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 14:13:41,530 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 14:13:41,536 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-06-14 14:13:41,536 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:13:41 BoogieIcfgContainer [2024-06-14 14:13:41,537 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 14:13:41,538 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 14:13:41,539 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 14:13:41,541 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 14:13:41,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 02:13:40" (1/4) ... [2024-06-14 14:13:41,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19482921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 02:13:41, skipping insertion in model container [2024-06-14 14:13:41,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:13:40" (2/4) ... [2024-06-14 14:13:41,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19482921 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 02:13:41, skipping insertion in model container [2024-06-14 14:13:41,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:13:40" (3/4) ... [2024-06-14 14:13:41,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19482921 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 02:13:41, skipping insertion in model container [2024-06-14 14:13:41,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:13:41" (4/4) ... [2024-06-14 14:13:41,545 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2024-06-14 14:13:41,557 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 14:13:41,557 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-14 14:13:41,557 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 14:13:41,594 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-14 14:13:41,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 61 transitions, 134 flow [2024-06-14 14:13:41,655 INFO L124 PetriNetUnfolderBase]: 6/58 cut-off events. [2024-06-14 14:13:41,655 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 14:13:41,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 58 events. 6/58 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. 0/49 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2024-06-14 14:13:41,658 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 61 transitions, 134 flow [2024-06-14 14:13:41,662 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 58 transitions, 125 flow [2024-06-14 14:13:41,674 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 14:13:41,682 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;@5e5193fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 14:13:41,682 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-14 14:13:41,685 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 14:13:41,686 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-14 14:13:41,686 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 14:13:41,686 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:13:41,687 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-14 14:13:41,687 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)] === [2024-06-14 14:13:41,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:13:41,691 INFO L85 PathProgramCache]: Analyzing trace with hash 114519251, now seen corresponding path program 1 times [2024-06-14 14:13:41,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:13:41,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572233775] [2024-06-14 14:13:41,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:13:41,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:13:41,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:13:42,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:13:42,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:13:42,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572233775] [2024-06-14 14:13:42,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572233775] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:13:42,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:13:42,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-14 14:13:42,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498196258] [2024-06-14 14:13:42,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:13:42,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 14:13:42,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:13:42,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 14:13:42,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 14:13:42,168 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 61 [2024-06-14 14:13:42,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-06-14 14:13:42,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:13:42,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 61 [2024-06-14 14:13:42,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:13:43,592 INFO L124 PetriNetUnfolderBase]: 13699/19841 cut-off events. [2024-06-14 14:13:43,596 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-06-14 14:13:43,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37492 conditions, 19841 events. 13699/19841 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 118145 event pairs, 2656 based on Foata normal form. 1429/19849 useless extension candidates. Maximal degree in co-relation 37477. Up to 15223 conditions per place. [2024-06-14 14:13:43,672 INFO L140 encePairwiseOnDemand]: 52/61 looper letters, 52 selfloop transitions, 2 changer transitions 17/80 dead transitions. [2024-06-14 14:13:43,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 80 transitions, 308 flow [2024-06-14 14:13:43,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:13:43,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:13:43,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 122 transitions. [2024-06-14 14:13:43,682 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-06-14 14:13:43,683 INFO L175 Difference]: Start difference. First operand has 62 places, 58 transitions, 125 flow. Second operand 3 states and 122 transitions. [2024-06-14 14:13:43,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 80 transitions, 308 flow [2024-06-14 14:13:43,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 80 transitions, 304 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-14 14:13:43,750 INFO L231 Difference]: Finished difference. Result has 59 places, 46 transitions, 114 flow [2024-06-14 14:13:43,752 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=59, PETRI_TRANSITIONS=46} [2024-06-14 14:13:43,754 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -3 predicate places. [2024-06-14 14:13:43,754 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 46 transitions, 114 flow [2024-06-14 14:13:43,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-06-14 14:13:43,754 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:13:43,754 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:13:43,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-14 14:13:43,755 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)] === [2024-06-14 14:13:43,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:13:43,755 INFO L85 PathProgramCache]: Analyzing trace with hash 193043477, now seen corresponding path program 1 times [2024-06-14 14:13:43,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:13:43,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307999868] [2024-06-14 14:13:43,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:13:43,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:13:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:13:44,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:13:44,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:13:44,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307999868] [2024-06-14 14:13:44,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307999868] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:13:44,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:13:44,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:13:44,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592402557] [2024-06-14 14:13:44,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:13:44,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-14 14:13:44,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:13:44,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-14 14:13:44,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-14 14:13:44,016 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 61 [2024-06-14 14:13:44,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 46 transitions, 114 flow. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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) [2024-06-14 14:13:44,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:13:44,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 61 [2024-06-14 14:13:44,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:13:45,017 INFO L124 PetriNetUnfolderBase]: 8998/13855 cut-off events. [2024-06-14 14:13:45,017 INFO L125 PetriNetUnfolderBase]: For 1547/1547 co-relation queries the response was YES. [2024-06-14 14:13:45,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27814 conditions, 13855 events. 8998/13855 cut-off events. For 1547/1547 co-relation queries the response was YES. Maximal size of possible extension queue 436. Compared 84072 event pairs, 884 based on Foata normal form. 710/14325 useless extension candidates. Maximal degree in co-relation 27799. Up to 6574 conditions per place. [2024-06-14 14:13:45,079 INFO L140 encePairwiseOnDemand]: 47/61 looper letters, 118 selfloop transitions, 19 changer transitions 0/146 dead transitions. [2024-06-14 14:13:45,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 146 transitions, 605 flow [2024-06-14 14:13:45,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 14:13:45,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 14:13:45,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 252 transitions. [2024-06-14 14:13:45,093 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5901639344262295 [2024-06-14 14:13:45,094 INFO L175 Difference]: Start difference. First operand has 59 places, 46 transitions, 114 flow. Second operand 7 states and 252 transitions. [2024-06-14 14:13:45,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 146 transitions, 605 flow [2024-06-14 14:13:45,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 146 transitions, 602 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:13:45,098 INFO L231 Difference]: Finished difference. Result has 59 places, 63 transitions, 257 flow [2024-06-14 14:13:45,099 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=257, PETRI_PLACES=59, PETRI_TRANSITIONS=63} [2024-06-14 14:13:45,099 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -3 predicate places. [2024-06-14 14:13:45,100 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 63 transitions, 257 flow [2024-06-14 14:13:45,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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) [2024-06-14 14:13:45,101 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:13:45,101 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:13:45,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-14 14:13:45,101 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)] === [2024-06-14 14:13:45,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:13:45,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1380195109, now seen corresponding path program 1 times [2024-06-14 14:13:45,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:13:45,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082506543] [2024-06-14 14:13:45,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:13:45,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:13:45,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:13:45,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:13:45,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:13:45,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082506543] [2024-06-14 14:13:45,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082506543] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:13:45,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:13:45,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 14:13:45,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846732214] [2024-06-14 14:13:45,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:13:45,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 14:13:45,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:13:45,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 14:13:45,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 14:13:45,249 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 61 [2024-06-14 14:13:45,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 63 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2024-06-14 14:13:45,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:13:45,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 61 [2024-06-14 14:13:45,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:13:46,415 INFO L124 PetriNetUnfolderBase]: 10722/17260 cut-off events. [2024-06-14 14:13:46,416 INFO L125 PetriNetUnfolderBase]: For 12437/13363 co-relation queries the response was YES. [2024-06-14 14:13:46,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42906 conditions, 17260 events. 10722/17260 cut-off events. For 12437/13363 co-relation queries the response was YES. Maximal size of possible extension queue 611. Compared 117407 event pairs, 3439 based on Foata normal form. 393/17195 useless extension candidates. Maximal degree in co-relation 42884. Up to 9235 conditions per place. [2024-06-14 14:13:46,491 INFO L140 encePairwiseOnDemand]: 53/61 looper letters, 70 selfloop transitions, 16 changer transitions 0/99 dead transitions. [2024-06-14 14:13:46,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 99 transitions, 556 flow [2024-06-14 14:13:46,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:13:46,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:13:46,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 120 transitions. [2024-06-14 14:13:46,493 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6557377049180327 [2024-06-14 14:13:46,493 INFO L175 Difference]: Start difference. First operand has 59 places, 63 transitions, 257 flow. Second operand 3 states and 120 transitions. [2024-06-14 14:13:46,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 99 transitions, 556 flow [2024-06-14 14:13:46,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 99 transitions, 552 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:13:46,508 INFO L231 Difference]: Finished difference. Result has 61 places, 73 transitions, 358 flow [2024-06-14 14:13:46,508 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=61, PETRI_TRANSITIONS=73} [2024-06-14 14:13:46,509 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -1 predicate places. [2024-06-14 14:13:46,509 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 73 transitions, 358 flow [2024-06-14 14:13:46,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2024-06-14 14:13:46,509 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:13:46,509 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] [2024-06-14 14:13:46,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-14 14:13:46,509 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)] === [2024-06-14 14:13:46,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:13:46,510 INFO L85 PathProgramCache]: Analyzing trace with hash 2059427618, now seen corresponding path program 1 times [2024-06-14 14:13:46,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:13:46,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597592411] [2024-06-14 14:13:46,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:13:46,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:13:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:13:46,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:13:46,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:13:46,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597592411] [2024-06-14 14:13:46,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597592411] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:13:46,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:13:46,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:13:46,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458132112] [2024-06-14 14:13:46,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:13:46,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-14 14:13:46,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:13:46,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-14 14:13:46,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-14 14:13:46,773 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 61 [2024-06-14 14:13:46,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 73 transitions, 358 flow. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:13:46,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:13:46,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 61 [2024-06-14 14:13:46,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:13:48,970 INFO L124 PetriNetUnfolderBase]: 19918/30226 cut-off events. [2024-06-14 14:13:48,970 INFO L125 PetriNetUnfolderBase]: For 40601/41040 co-relation queries the response was YES. [2024-06-14 14:13:49,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89582 conditions, 30226 events. 19918/30226 cut-off events. For 40601/41040 co-relation queries the response was YES. Maximal size of possible extension queue 1001. Compared 206275 event pairs, 5689 based on Foata normal form. 116/29834 useless extension candidates. Maximal degree in co-relation 89559. Up to 12458 conditions per place. [2024-06-14 14:13:49,102 INFO L140 encePairwiseOnDemand]: 51/61 looper letters, 148 selfloop transitions, 20 changer transitions 0/177 dead transitions. [2024-06-14 14:13:49,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 177 transitions, 1149 flow [2024-06-14 14:13:49,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 14:13:49,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 14:13:49,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 215 transitions. [2024-06-14 14:13:49,104 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.587431693989071 [2024-06-14 14:13:49,104 INFO L175 Difference]: Start difference. First operand has 61 places, 73 transitions, 358 flow. Second operand 6 states and 215 transitions. [2024-06-14 14:13:49,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 177 transitions, 1149 flow [2024-06-14 14:13:49,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 177 transitions, 1111 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:13:49,131 INFO L231 Difference]: Finished difference. Result has 69 places, 85 transitions, 502 flow [2024-06-14 14:13:49,131 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=502, PETRI_PLACES=69, PETRI_TRANSITIONS=85} [2024-06-14 14:13:49,132 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 7 predicate places. [2024-06-14 14:13:49,132 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 85 transitions, 502 flow [2024-06-14 14:13:49,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:13:49,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:13:49,133 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] [2024-06-14 14:13:49,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-14 14:13:49,133 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)] === [2024-06-14 14:13:49,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:13:49,134 INFO L85 PathProgramCache]: Analyzing trace with hash -536015514, now seen corresponding path program 1 times [2024-06-14 14:13:49,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:13:49,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783676501] [2024-06-14 14:13:49,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:13:49,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:13:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:13:49,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:13:49,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:13:49,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783676501] [2024-06-14 14:13:49,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783676501] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:13:49,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:13:49,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:13:49,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38340646] [2024-06-14 14:13:49,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:13:49,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-14 14:13:49,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:13:49,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-14 14:13:49,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-14 14:13:49,406 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 61 [2024-06-14 14:13:49,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 85 transitions, 502 flow. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 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) [2024-06-14 14:13:49,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:13:49,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 61 [2024-06-14 14:13:49,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:13:53,101 INFO L124 PetriNetUnfolderBase]: 30187/46148 cut-off events. [2024-06-14 14:13:53,101 INFO L125 PetriNetUnfolderBase]: For 109009/109643 co-relation queries the response was YES. [2024-06-14 14:13:53,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146555 conditions, 46148 events. 30187/46148 cut-off events. For 109009/109643 co-relation queries the response was YES. Maximal size of possible extension queue 1039. Compared 320240 event pairs, 6346 based on Foata normal form. 1098/46406 useless extension candidates. Maximal degree in co-relation 146527. Up to 11052 conditions per place. [2024-06-14 14:13:53,327 INFO L140 encePairwiseOnDemand]: 53/61 looper letters, 186 selfloop transitions, 26 changer transitions 2/223 dead transitions. [2024-06-14 14:13:53,327 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 223 transitions, 1576 flow [2024-06-14 14:13:53,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 14:13:53,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 14:13:53,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 266 transitions. [2024-06-14 14:13:53,329 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6229508196721312 [2024-06-14 14:13:53,329 INFO L175 Difference]: Start difference. First operand has 69 places, 85 transitions, 502 flow. Second operand 7 states and 266 transitions. [2024-06-14 14:13:53,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 223 transitions, 1576 flow [2024-06-14 14:13:53,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 223 transitions, 1570 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-06-14 14:13:53,457 INFO L231 Difference]: Finished difference. Result has 79 places, 92 transitions, 663 flow [2024-06-14 14:13:53,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=663, PETRI_PLACES=79, PETRI_TRANSITIONS=92} [2024-06-14 14:13:53,459 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 17 predicate places. [2024-06-14 14:13:53,459 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 92 transitions, 663 flow [2024-06-14 14:13:53,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 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) [2024-06-14 14:13:53,460 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:13:53,460 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] [2024-06-14 14:13:53,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-14 14:13:53,460 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)] === [2024-06-14 14:13:53,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:13:53,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1420481102, now seen corresponding path program 1 times [2024-06-14 14:13:53,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:13:53,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604118338] [2024-06-14 14:13:53,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:13:53,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:13:53,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:13:53,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:13:53,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:13:53,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604118338] [2024-06-14 14:13:53,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604118338] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:13:53,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:13:53,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 14:13:53,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363096170] [2024-06-14 14:13:53,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:13:53,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 14:13:53,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:13:53,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 14:13:53,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-06-14 14:13:53,713 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 61 [2024-06-14 14:13:53,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 92 transitions, 663 flow. Second operand has 8 states, 8 states have (on average 17.25) internal successors, (138), 8 states have internal predecessors, (138), 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) [2024-06-14 14:13:53,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:13:53,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 61 [2024-06-14 14:13:53,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:13:58,065 INFO L124 PetriNetUnfolderBase]: 33309/50931 cut-off events. [2024-06-14 14:13:58,065 INFO L125 PetriNetUnfolderBase]: For 161736/162326 co-relation queries the response was YES. [2024-06-14 14:13:58,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174291 conditions, 50931 events. 33309/50931 cut-off events. For 161736/162326 co-relation queries the response was YES. Maximal size of possible extension queue 1157. Compared 357121 event pairs, 3914 based on Foata normal form. 380/50466 useless extension candidates. Maximal degree in co-relation 174257. Up to 9782 conditions per place. [2024-06-14 14:13:58,371 INFO L140 encePairwiseOnDemand]: 50/61 looper letters, 245 selfloop transitions, 68 changer transitions 5/327 dead transitions. [2024-06-14 14:13:58,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 327 transitions, 2429 flow [2024-06-14 14:13:58,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-14 14:13:58,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-14 14:13:58,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 412 transitions. [2024-06-14 14:13:58,373 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6140089418777943 [2024-06-14 14:13:58,373 INFO L175 Difference]: Start difference. First operand has 79 places, 92 transitions, 663 flow. Second operand 11 states and 412 transitions. [2024-06-14 14:13:58,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 327 transitions, 2429 flow [2024-06-14 14:13:58,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 327 transitions, 2421 flow, removed 4 selfloop flow, removed 0 redundant places. [2024-06-14 14:13:58,662 INFO L231 Difference]: Finished difference. Result has 96 places, 125 transitions, 1242 flow [2024-06-14 14:13:58,662 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=659, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1242, PETRI_PLACES=96, PETRI_TRANSITIONS=125} [2024-06-14 14:13:58,662 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 34 predicate places. [2024-06-14 14:13:58,662 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 125 transitions, 1242 flow [2024-06-14 14:13:58,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.25) internal successors, (138), 8 states have internal predecessors, (138), 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) [2024-06-14 14:13:58,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:13:58,663 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] [2024-06-14 14:13:58,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-14 14:13:58,663 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)] === [2024-06-14 14:13:58,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:13:58,664 INFO L85 PathProgramCache]: Analyzing trace with hash 244091495, now seen corresponding path program 1 times [2024-06-14 14:13:58,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:13:58,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820515161] [2024-06-14 14:13:58,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:13:58,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:13:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:13:58,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:13:58,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:13:58,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820515161] [2024-06-14 14:13:58,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820515161] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:13:58,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:13:58,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 14:13:58,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047496068] [2024-06-14 14:13:58,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:13:58,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-14 14:13:58,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:13:58,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-14 14:13:58,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-14 14:13:58,991 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 61 [2024-06-14 14:13:58,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 125 transitions, 1242 flow. Second operand has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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) [2024-06-14 14:13:58,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:13:58,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 61 [2024-06-14 14:13:58,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:13:59,468 INFO L124 PetriNetUnfolderBase]: 4390/7096 cut-off events. [2024-06-14 14:13:59,469 INFO L125 PetriNetUnfolderBase]: For 31026/31079 co-relation queries the response was YES. [2024-06-14 14:13:59,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22902 conditions, 7096 events. 4390/7096 cut-off events. For 31026/31079 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 39710 event pairs, 757 based on Foata normal form. 275/7314 useless extension candidates. Maximal degree in co-relation 22875. Up to 5505 conditions per place. [2024-06-14 14:13:59,490 INFO L140 encePairwiseOnDemand]: 55/61 looper letters, 0 selfloop transitions, 0 changer transitions 68/68 dead transitions. [2024-06-14 14:13:59,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 68 transitions, 490 flow [2024-06-14 14:13:59,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 14:13:59,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 14:13:59,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 148 transitions. [2024-06-14 14:13:59,496 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4852459016393443 [2024-06-14 14:13:59,496 INFO L175 Difference]: Start difference. First operand has 96 places, 125 transitions, 1242 flow. Second operand 5 states and 148 transitions. [2024-06-14 14:13:59,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 68 transitions, 490 flow [2024-06-14 14:13:59,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 68 transitions, 364 flow, removed 8 selfloop flow, removed 20 redundant places. [2024-06-14 14:13:59,536 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2024-06-14 14:13:59,536 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=62, 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=5, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2024-06-14 14:13:59,537 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 4 predicate places. [2024-06-14 14:13:59,537 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2024-06-14 14:13:59,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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) [2024-06-14 14:13:59,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-14 14:13:59,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-14 14:13:59,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-14 14:13:59,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-14 14:13:59,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-14 14:13:59,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-14 14:13:59,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-14 14:13:59,540 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:13:59,542 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-14 14:13:59,542 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-14 14:13:59,545 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-14 14:13:59,545 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-14 14:13:59,546 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 02:13:59 BasicIcfg [2024-06-14 14:13:59,546 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-14 14:13:59,547 INFO L158 Benchmark]: Toolchain (without parser) took 19291.69ms. Allocated memory was 151.0MB in the beginning and 10.5GB in the end (delta: 10.3GB). Free memory was 120.7MB in the beginning and 9.0GB in the end (delta: -8.9GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2024-06-14 14:13:59,548 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 151.0MB. Free memory was 127.2MB in the beginning and 127.0MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:13:59,548 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 151.0MB. Free memory is still 120.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:13:59,548 INFO L158 Benchmark]: CACSL2BoogieTranslator took 495.95ms. Allocated memory is still 151.0MB. Free memory was 120.2MB in the beginning and 78.3MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-06-14 14:13:59,548 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.27ms. Allocated memory is still 151.0MB. Free memory was 78.3MB in the beginning and 75.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-14 14:13:59,549 INFO L158 Benchmark]: Boogie Preprocessor took 67.98ms. Allocated memory is still 151.0MB. Free memory was 75.2MB in the beginning and 71.6MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-14 14:13:59,551 INFO L158 Benchmark]: RCFGBuilder took 672.29ms. Allocated memory is still 151.0MB. Free memory was 71.6MB in the beginning and 76.5MB in the end (delta: -4.9MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2024-06-14 14:13:59,551 INFO L158 Benchmark]: TraceAbstraction took 18008.11ms. Allocated memory was 151.0MB in the beginning and 10.5GB in the end (delta: 10.3GB). Free memory was 75.6MB in the beginning and 9.0GB in the end (delta: -8.9GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2024-06-14 14:13:59,552 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 151.0MB. Free memory was 127.2MB in the beginning and 127.0MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.12ms. Allocated memory is still 151.0MB. Free memory is still 120.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 495.95ms. Allocated memory is still 151.0MB. Free memory was 120.2MB in the beginning and 78.3MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.27ms. Allocated memory is still 151.0MB. Free memory was 78.3MB in the beginning and 75.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.98ms. Allocated memory is still 151.0MB. Free memory was 75.2MB in the beginning and 71.6MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 672.29ms. Allocated memory is still 151.0MB. Free memory was 71.6MB in the beginning and 76.5MB in the end (delta: -4.9MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * TraceAbstraction took 18008.11ms. Allocated memory was 151.0MB in the beginning and 10.5GB in the end (delta: 10.3GB). Free memory was 75.6MB in the beginning and 9.0GB in the end (delta: -8.9GB). Peak memory consumption was 1.4GB. 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, 90 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: 17.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 15.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 745 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 726 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 87 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1365 IncrementalHoareTripleChecker+Invalid, 1452 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 87 mSolverCounterUnsat, 14 mSDtfsCounter, 1365 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1242occurred in iteration=6, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 650 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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! [2024-06-14 14:13:59,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE