./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_37-traces-ex-4_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/protection/13-privatized_37-traces-ex-4_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_37-traces-ex-4_true.i ./goblint.2024-06-19_11-23-25.files/protection/13-privatized_37-traces-ex-4_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 --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 18:01:29,333 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 18:01:29,397 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 18:01:29,400 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 18:01:29,400 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 18:01:29,447 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 18:01:29,448 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 18:01:29,448 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 18:01:29,449 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 18:01:29,449 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 18:01:29,449 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 18:01:29,450 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 18:01:29,450 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 18:01:29,450 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 18:01:29,451 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 18:01:29,451 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 18:01:29,451 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 18:01:29,452 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 18:01:29,452 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 18:01:29,452 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 18:01:29,453 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 18:01:29,453 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 18:01:29,453 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 18:01:29,454 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 18:01:29,454 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 18:01:29,454 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 18:01:29,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 18:01:29,455 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 18:01:29,455 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 18:01:29,455 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 18:01:29,456 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 18:01:29,456 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 18:01:29,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 18:01:29,456 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 18:01:29,457 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 18:01:29,457 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 18:01:29,457 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 18:01:29,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 18:01:29,458 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 18:01:29,458 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 18:01:29,458 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 18:01:29,459 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 18:01:29,459 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 18:01:29,459 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-27 18:01:29,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 18:01:29,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 18:01:29,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 18:01:29,724 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 18:01:29,725 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 18:01:29,726 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/13-privatized_37-traces-ex-4_true.yml/witness.yml [2024-06-27 18:01:29,854 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 18:01:29,862 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 18:01:29,862 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_37-traces-ex-4_true.i [2024-06-27 18:01:31,160 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 18:01:31,565 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 18:01:31,565 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_37-traces-ex-4_true.i [2024-06-27 18:01:31,593 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/274fd00b3/ea51944144684bee90334b1e626e3d30/FLAG6982205cc [2024-06-27 18:01:31,605 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/274fd00b3/ea51944144684bee90334b1e626e3d30 [2024-06-27 18:01:31,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 18:01:31,607 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 18:01:31,623 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 18:01:31,623 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 18:01:31,627 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 18:01:31,629 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:01:29" (1/2) ... [2024-06-27 18:01:31,630 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b63a125 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:01:31, skipping insertion in model container [2024-06-27 18:01:31,630 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:01:29" (1/2) ... [2024-06-27 18:01:31,631 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@27498e85 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:01:31, skipping insertion in model container [2024-06-27 18:01:31,631 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 06:01:31" (2/2) ... [2024-06-27 18:01:31,632 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b63a125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:31, skipping insertion in model container [2024-06-27 18:01:31,632 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 06:01:31" (2/2) ... [2024-06-27 18:01:31,632 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 18:01:31,667 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 18:01:31,668 INFO L97 edCorrectnessWitness]: Location invariant before [L698-L698] ! multithreaded || (g == 1 || g == 2) [2024-06-27 18:01:31,668 INFO L103 edCorrectnessWitness]: ghost_variable B_locked = 0 [2024-06-27 18:01:31,668 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 18:01:31,668 INFO L103 edCorrectnessWitness]: ghost_variable A_locked = 0 [2024-06-27 18:01:31,669 INFO L106 edCorrectnessWitness]: ghost_update [L691-L691] A_locked = 0; [2024-06-27 18:01:31,669 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] A_locked = 1; [2024-06-27 18:01:31,669 INFO L106 edCorrectnessWitness]: ghost_update [L701-L701] A_locked = 0; [2024-06-27 18:01:31,669 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] B_locked = 1; [2024-06-27 18:01:31,669 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] A_locked = 1; [2024-06-27 18:01:31,669 INFO L106 edCorrectnessWitness]: ghost_update [L688-L688] A_locked = 0; [2024-06-27 18:01:31,669 INFO L106 edCorrectnessWitness]: ghost_update [L702-L702] B_locked = 0; [2024-06-27 18:01:31,669 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] multithreaded = 1; [2024-06-27 18:01:31,670 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] A_locked = 1; [2024-06-27 18:01:31,670 INFO L106 edCorrectnessWitness]: ghost_update [L692-L692] B_locked = 0; [2024-06-27 18:01:31,670 INFO L106 edCorrectnessWitness]: ghost_update [L685-L685] B_locked = 1; [2024-06-27 18:01:31,704 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 18:01:31,819 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_37-traces-ex-4_true.i[1088,1101] [2024-06-27 18:01:31,901 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 18:01:31,912 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 18:01:31,939 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_37-traces-ex-4_true.i[1088,1101] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 18:01:31,972 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 18:01:31,998 INFO L206 MainTranslator]: Completed translation [2024-06-27 18:01:31,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:31 WrapperNode [2024-06-27 18:01:31,999 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 18:01:32,000 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 18:01:32,000 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 18:01:32,000 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 18:01:32,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:31" (1/1) ... [2024-06-27 18:01:32,015 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:31" (1/1) ... [2024-06-27 18:01:32,030 INFO L138 Inliner]: procedures = 162, calls = 30, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2024-06-27 18:01:32,030 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 18:01:32,031 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 18:01:32,031 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 18:01:32,031 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 18:01:32,039 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:31" (1/1) ... [2024-06-27 18:01:32,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:31" (1/1) ... [2024-06-27 18:01:32,041 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:31" (1/1) ... [2024-06-27 18:01:32,051 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-06-27 18:01:32,051 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:31" (1/1) ... [2024-06-27 18:01:32,051 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:31" (1/1) ... [2024-06-27 18:01:32,055 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:31" (1/1) ... [2024-06-27 18:01:32,057 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:31" (1/1) ... [2024-06-27 18:01:32,058 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:31" (1/1) ... [2024-06-27 18:01:32,059 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:31" (1/1) ... [2024-06-27 18:01:32,060 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 18:01:32,061 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 18:01:32,061 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 18:01:32,061 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 18:01:32,062 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:31" (1/1) ... [2024-06-27 18:01:32,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 18:01:32,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 18:01:32,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-27 18:01:32,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-27 18:01:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-27 18:01:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 18:01:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-27 18:01:32,182 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-27 18:01:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 18:01:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-27 18:01:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-27 18:01:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-27 18:01:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 18:01:32,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 18:01:32,187 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 18:01:32,326 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 18:01:32,328 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 18:01:32,739 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 18:01:32,740 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 18:01:32,827 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 18:01:32,827 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 18:01:32,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 06:01:32 BoogieIcfgContainer [2024-06-27 18:01:32,828 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 18:01:32,830 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 18:01:32,830 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 18:01:32,833 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 18:01:32,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:01:29" (1/4) ... [2024-06-27 18:01:32,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f502d7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 06:01:32, skipping insertion in model container [2024-06-27 18:01:32,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 06:01:31" (2/4) ... [2024-06-27 18:01:32,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f502d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 06:01:32, skipping insertion in model container [2024-06-27 18:01:32,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:31" (3/4) ... [2024-06-27 18:01:32,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f502d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 06:01:32, skipping insertion in model container [2024-06-27 18:01:32,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 06:01:32" (4/4) ... [2024-06-27 18:01:32,836 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_37-traces-ex-4_true.i [2024-06-27 18:01:32,850 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 18:01:32,851 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-27 18:01:32,851 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 18:01:32,874 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 18:01:32,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 33 transitions, 70 flow [2024-06-27 18:01:32,918 INFO L124 PetriNetUnfolderBase]: 1/32 cut-off events. [2024-06-27 18:01:32,919 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 18:01:32,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 32 events. 1/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2024-06-27 18:01:32,922 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 33 transitions, 70 flow [2024-06-27 18:01:32,924 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 25 transitions, 53 flow [2024-06-27 18:01:32,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 18:01:32,938 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;@74f56147, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 18:01:32,938 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-06-27 18:01:32,942 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 18:01:32,942 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-27 18:01:32,942 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 18:01:32,942 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:32,943 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 18:01:32,943 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 18:01:32,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:32,948 INFO L85 PathProgramCache]: Analyzing trace with hash 212975802, now seen corresponding path program 1 times [2024-06-27 18:01:32,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:32,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800082417] [2024-06-27 18:01:32,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:32,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:33,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:01:33,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:33,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800082417] [2024-06-27 18:01:33,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800082417] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:33,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:33,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 18:01:33,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265317740] [2024-06-27 18:01:33,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:33,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 18:01:33,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:33,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 18:01:33,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 18:01:33,282 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 33 [2024-06-27 18:01:33,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 25 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:01:33,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:33,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 33 [2024-06-27 18:01:33,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:33,377 INFO L124 PetriNetUnfolderBase]: 38/124 cut-off events. [2024-06-27 18:01:33,377 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-27 18:01:33,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 124 events. 38/124 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 430 event pairs, 26 based on Foata normal form. 7/128 useless extension candidates. Maximal degree in co-relation 215. Up to 64 conditions per place. [2024-06-27 18:01:33,381 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 17 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2024-06-27 18:01:33,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 29 transitions, 101 flow [2024-06-27 18:01:33,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 18:01:33,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 18:01:33,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2024-06-27 18:01:33,392 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2024-06-27 18:01:33,394 INFO L175 Difference]: Start difference. First operand has 29 places, 25 transitions, 53 flow. Second operand 3 states and 57 transitions. [2024-06-27 18:01:33,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 29 transitions, 101 flow [2024-06-27 18:01:33,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 29 transitions, 100 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 18:01:33,400 INFO L231 Difference]: Finished difference. Result has 31 places, 25 transitions, 63 flow [2024-06-27 18:01:33,402 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=63, PETRI_PLACES=31, PETRI_TRANSITIONS=25} [2024-06-27 18:01:33,405 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2024-06-27 18:01:33,406 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 25 transitions, 63 flow [2024-06-27 18:01:33,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:01:33,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:33,407 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:01:33,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 18:01:33,408 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 18:01:33,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:33,410 INFO L85 PathProgramCache]: Analyzing trace with hash 505797241, now seen corresponding path program 1 times [2024-06-27 18:01:33,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:33,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371041546] [2024-06-27 18:01:33,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:33,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:33,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:33,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:01:33,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:33,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371041546] [2024-06-27 18:01:33,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371041546] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:33,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:33,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 18:01:33,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465094647] [2024-06-27 18:01:33,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:33,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 18:01:33,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:33,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 18:01:33,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 18:01:33,475 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 33 [2024-06-27 18:01:33,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 25 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:01:33,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:33,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 33 [2024-06-27 18:01:33,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:33,526 INFO L124 PetriNetUnfolderBase]: 36/114 cut-off events. [2024-06-27 18:01:33,526 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-06-27 18:01:33,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 114 events. 36/114 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 373 event pairs, 24 based on Foata normal form. 3/115 useless extension candidates. Maximal degree in co-relation 211. Up to 61 conditions per place. [2024-06-27 18:01:33,528 INFO L140 encePairwiseOnDemand]: 30/33 looper letters, 17 selfloop transitions, 2 changer transitions 0/28 dead transitions. [2024-06-27 18:01:33,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 28 transitions, 105 flow [2024-06-27 18:01:33,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 18:01:33,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 18:01:33,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2024-06-27 18:01:33,529 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5656565656565656 [2024-06-27 18:01:33,530 INFO L175 Difference]: Start difference. First operand has 31 places, 25 transitions, 63 flow. Second operand 3 states and 56 transitions. [2024-06-27 18:01:33,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 28 transitions, 105 flow [2024-06-27 18:01:33,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 28 transitions, 96 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 18:01:33,534 INFO L231 Difference]: Finished difference. Result has 29 places, 24 transitions, 54 flow [2024-06-27 18:01:33,535 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=29, PETRI_TRANSITIONS=24} [2024-06-27 18:01:33,541 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 0 predicate places. [2024-06-27 18:01:33,542 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 24 transitions, 54 flow [2024-06-27 18:01:33,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:01:33,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:33,542 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:01:33,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 18:01:33,543 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 18:01:33,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:33,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1637807820, now seen corresponding path program 1 times [2024-06-27 18:01:33,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:33,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575317411] [2024-06-27 18:01:33,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:33,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:33,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:33,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:01:33,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:33,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575317411] [2024-06-27 18:01:33,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575317411] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:33,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:33,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 18:01:33,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807632867] [2024-06-27 18:01:33,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:33,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 18:01:33,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:33,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 18:01:33,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 18:01:33,664 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-06-27 18:01:33,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 24 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:01:33,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:33,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-06-27 18:01:33,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:33,759 INFO L124 PetriNetUnfolderBase]: 41/129 cut-off events. [2024-06-27 18:01:33,759 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-06-27 18:01:33,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 129 events. 41/129 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 445 event pairs, 22 based on Foata normal form. 10/137 useless extension candidates. Maximal degree in co-relation 242. Up to 59 conditions per place. [2024-06-27 18:01:33,760 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 17 selfloop transitions, 3 changer transitions 10/38 dead transitions. [2024-06-27 18:01:33,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 38 transitions, 146 flow [2024-06-27 18:01:33,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 18:01:33,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 18:01:33,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 82 transitions. [2024-06-27 18:01:33,762 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49696969696969695 [2024-06-27 18:01:33,762 INFO L175 Difference]: Start difference. First operand has 29 places, 24 transitions, 54 flow. Second operand 5 states and 82 transitions. [2024-06-27 18:01:33,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 38 transitions, 146 flow [2024-06-27 18:01:33,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 38 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 18:01:33,763 INFO L231 Difference]: Finished difference. Result has 34 places, 24 transitions, 65 flow [2024-06-27 18:01:33,763 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=65, PETRI_PLACES=34, PETRI_TRANSITIONS=24} [2024-06-27 18:01:33,764 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 5 predicate places. [2024-06-27 18:01:33,764 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 24 transitions, 65 flow [2024-06-27 18:01:33,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:01:33,764 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:33,765 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:01:33,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 18:01:33,765 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 18:01:33,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:33,765 INFO L85 PathProgramCache]: Analyzing trace with hash 259295461, now seen corresponding path program 1 times [2024-06-27 18:01:33,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:33,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250393168] [2024-06-27 18:01:33,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:33,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:33,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:01:33,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:33,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250393168] [2024-06-27 18:01:33,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250393168] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:33,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:33,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 18:01:33,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136189373] [2024-06-27 18:01:33,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:33,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 18:01:33,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:33,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 18:01:33,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-06-27 18:01:33,875 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 33 [2024-06-27 18:01:33,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 65 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:01:33,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:33,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 33 [2024-06-27 18:01:33,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:33,901 INFO L124 PetriNetUnfolderBase]: 11/51 cut-off events. [2024-06-27 18:01:33,902 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-27 18:01:33,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 51 events. 11/51 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 2 based on Foata normal form. 9/59 useless extension candidates. Maximal degree in co-relation 98. Up to 29 conditions per place. [2024-06-27 18:01:33,902 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2024-06-27 18:01:33,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 23 transitions, 89 flow [2024-06-27 18:01:33,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 18:01:33,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 18:01:33,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2024-06-27 18:01:33,904 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5303030303030303 [2024-06-27 18:01:33,904 INFO L175 Difference]: Start difference. First operand has 34 places, 24 transitions, 65 flow. Second operand 4 states and 70 transitions. [2024-06-27 18:01:33,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 23 transitions, 89 flow [2024-06-27 18:01:33,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 23 transitions, 80 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 18:01:33,905 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2024-06-27 18:01:33,905 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2024-06-27 18:01:33,906 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 0 predicate places. [2024-06-27 18:01:33,906 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2024-06-27 18:01:33,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:01:33,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 3 remaining) [2024-06-27 18:01:33,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-06-27 18:01:33,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-06-27 18:01:33,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 18:01:33,910 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-06-27 18:01:33,913 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 18:01:33,913 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 18:01:33,917 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-27 18:01:33,917 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-27 18:01:33,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 06:01:33 BasicIcfg [2024-06-27 18:01:33,918 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 18:01:33,919 INFO L158 Benchmark]: Toolchain (without parser) took 2312.26ms. Allocated memory is still 268.4MB. Free memory was 233.1MB in the beginning and 156.7MB in the end (delta: 76.4MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. [2024-06-27 18:01:33,919 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 134.2MB. Free memory was 100.1MB in the beginning and 100.0MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 18:01:33,919 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 134.2MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 18:01:33,920 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.45ms. Allocated memory is still 268.4MB. Free memory was 232.9MB in the beginning and 213.6MB in the end (delta: 19.4MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2024-06-27 18:01:33,920 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.57ms. Allocated memory is still 268.4MB. Free memory was 213.6MB in the beginning and 211.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 18:01:33,922 INFO L158 Benchmark]: Boogie Preprocessor took 29.60ms. Allocated memory is still 268.4MB. Free memory was 211.5MB in the beginning and 209.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 18:01:33,923 INFO L158 Benchmark]: RCFGBuilder took 766.97ms. Allocated memory is still 268.4MB. Free memory was 209.4MB in the beginning and 183.2MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-06-27 18:01:33,923 INFO L158 Benchmark]: TraceAbstraction took 1088.60ms. Allocated memory is still 268.4MB. Free memory was 182.1MB in the beginning and 156.7MB in the end (delta: 25.4MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2024-06-27 18:01:33,924 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.15ms. Allocated memory is still 134.2MB. Free memory was 100.1MB in the beginning and 100.0MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 134.2MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.45ms. Allocated memory is still 268.4MB. Free memory was 232.9MB in the beginning and 213.6MB in the end (delta: 19.4MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.57ms. Allocated memory is still 268.4MB. Free memory was 213.6MB in the beginning and 211.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.60ms. Allocated memory is still 268.4MB. Free memory was 211.5MB in the beginning and 209.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 766.97ms. Allocated memory is still 268.4MB. Free memory was 209.4MB in the beginning and 183.2MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1088.60ms. Allocated memory is still 268.4MB. Free memory was 182.1MB in the beginning and 156.7MB in the end (delta: 25.4MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 698]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 48 locations, 3 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: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 136 IncrementalHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 8 mSDtfsCounter, 136 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=3, InterpolantAutomatonStates: 15, 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, 0.4s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 119 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-27 18:01:33,953 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