./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-06-19_11-23-25.files/protection/time_var_mutex.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb4cb34f 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/pthread-atomic/time_var_mutex.i ./goblint.2024-06-19_11-23-25.files/protection/time_var_mutex.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-eb4cb34-m [2024-06-21 15:42:53,783 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-21 15:42:53,844 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-21 15:42:53,847 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-21 15:42:53,848 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-21 15:42:53,971 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-21 15:42:53,972 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-21 15:42:53,972 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-21 15:42:53,973 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-21 15:42:53,973 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-21 15:42:53,973 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-21 15:42:53,973 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-21 15:42:53,974 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-21 15:42:53,974 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-21 15:42:53,974 INFO L153 SettingsManager]: * Use SBE=true [2024-06-21 15:42:53,975 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-21 15:42:53,975 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-21 15:42:53,975 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-21 15:42:53,975 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-21 15:42:53,976 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-21 15:42:53,979 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-21 15:42:53,979 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-21 15:42:53,979 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-21 15:42:53,980 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-21 15:42:53,980 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-21 15:42:53,980 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-21 15:42:53,980 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-21 15:42:53,980 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-21 15:42:53,981 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-21 15:42:53,981 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-21 15:42:53,982 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-21 15:42:53,982 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-21 15:42:53,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-21 15:42:53,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-21 15:42:53,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-21 15:42:53,983 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-21 15:42:53,983 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-21 15:42:53,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-21 15:42:53,983 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-21 15:42:53,984 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-21 15:42:53,984 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-21 15:42:53,984 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-21 15:42:53,984 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-21 15:42:53,984 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-21 15:42:54,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-21 15:42:54,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-21 15:42:54,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-21 15:42:54,197 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-21 15:42:54,197 INFO L274 PluginConnector]: CDTParser initialized [2024-06-21 15:42:54,198 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2024-06-21 15:42:55,203 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-21 15:42:55,412 INFO L384 CDTParser]: Found 1 translation units. [2024-06-21 15:42:55,412 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2024-06-21 15:42:55,435 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71b582d20/e9952343a8cc4742b3d021303cc4c1fb/FLAG23cb01e06 [2024-06-21 15:42:55,450 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71b582d20/e9952343a8cc4742b3d021303cc4c1fb [2024-06-21 15:42:55,452 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-21 15:42:55,453 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-21 15:42:55,453 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/time_var_mutex.yml/witness.yml [2024-06-21 15:42:55,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-21 15:42:55,537 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-21 15:42:55,540 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-21 15:42:55,540 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-21 15:42:55,547 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-21 15:42:55,548 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 03:42:55" (1/2) ... [2024-06-21 15:42:55,549 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65df20c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 03:42:55, skipping insertion in model container [2024-06-21 15:42:55,549 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 03:42:55" (1/2) ... [2024-06-21 15:42:55,550 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3dd2d771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 03:42:55, skipping insertion in model container [2024-06-21 15:42:55,550 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 03:42:55" (2/2) ... [2024-06-21 15:42:55,551 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65df20c7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 03:42:55, skipping insertion in model container [2024-06-21 15:42:55,551 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 03:42:55" (2/2) ... [2024-06-21 15:42:55,551 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-21 15:42:55,582 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-21 15:42:55,583 INFO L97 edCorrectnessWitness]: Location invariant before [L722-L722] ((! multithreaded || (busy == 0 || busy == 1)) && (! multithreaded || (inode == 0 || inode == 1))) && (! multithreaded || (block == 0 || block == 1)) [2024-06-21 15:42:55,583 INFO L97 edCorrectnessWitness]: Location invariant before [L721-L721] ((! multithreaded || (busy == 0 || busy == 1)) && (! multithreaded || (inode == 0 || inode == 1))) && (! multithreaded || (block == 0 || block == 1)) [2024-06-21 15:42:55,583 INFO L103 edCorrectnessWitness]: ghost_variable m_busy_locked = 0 [2024-06-21 15:42:55,584 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-21 15:42:55,584 INFO L103 edCorrectnessWitness]: ghost_variable m_inode_locked = 0 [2024-06-21 15:42:55,584 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] m_busy_locked = 0; [2024-06-21 15:42:55,584 INFO L106 edCorrectnessWitness]: ghost_update [L720-L720] multithreaded = 1; [2024-06-21 15:42:55,584 INFO L106 edCorrectnessWitness]: ghost_update [L712-L712] m_busy_locked = 0; [2024-06-21 15:42:55,584 INFO L106 edCorrectnessWitness]: ghost_update [L696-L696] m_busy_locked = 1; [2024-06-21 15:42:55,584 INFO L106 edCorrectnessWitness]: ghost_update [L694-L694] m_inode_locked = 1; [2024-06-21 15:42:55,585 INFO L106 edCorrectnessWitness]: ghost_update [L707-L707] m_busy_locked = 1; [2024-06-21 15:42:55,585 INFO L106 edCorrectnessWitness]: ghost_update [L703-L703] m_inode_locked = 0; [2024-06-21 15:42:55,609 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-21 15:42:55,865 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-21 15:42:55,876 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 [2024-06-21 15:42:55,975 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-21 15:42:56,014 INFO L206 MainTranslator]: Completed translation [2024-06-21 15:42:56,015 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 03:42:56 WrapperNode [2024-06-21 15:42:56,015 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-21 15:42:56,016 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-21 15:42:56,016 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-21 15:42:56,017 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-21 15:42:56,023 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 21.06 03:42:56" (1/1) ... [2024-06-21 15:42:56,049 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 21.06 03:42:56" (1/1) ... [2024-06-21 15:42:56,080 INFO L138 Inliner]: procedures = 169, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 104 [2024-06-21 15:42:56,080 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-21 15:42:56,081 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-21 15:42:56,081 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-21 15:42:56,082 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-21 15:42:56,090 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 03:42:56" (1/1) ... [2024-06-21 15:42:56,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 03:42:56" (1/1) ... [2024-06-21 15:42:56,104 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 03:42:56" (1/1) ... [2024-06-21 15:42:56,124 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]. [2024-06-21 15:42:56,124 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 03:42:56" (1/1) ... [2024-06-21 15:42:56,124 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 03:42:56" (1/1) ... [2024-06-21 15:42:56,136 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 03:42:56" (1/1) ... [2024-06-21 15:42:56,138 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 03:42:56" (1/1) ... [2024-06-21 15:42:56,141 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 03:42:56" (1/1) ... [2024-06-21 15:42:56,143 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 03:42:56" (1/1) ... [2024-06-21 15:42:56,148 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-21 15:42:56,149 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-21 15:42:56,149 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-21 15:42:56,149 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-21 15:42:56,150 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 03:42:56" (1/1) ... [2024-06-21 15:42:56,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-21 15:42:56,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-21 15:42:56,205 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) [2024-06-21 15:42:56,224 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 [2024-06-21 15:42:56,236 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2024-06-21 15:42:56,237 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2024-06-21 15:42:56,237 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2024-06-21 15:42:56,237 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2024-06-21 15:42:56,237 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-21 15:42:56,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-21 15:42:56,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-21 15:42:56,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-21 15:42:56,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-21 15:42:56,240 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-21 15:42:56,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-21 15:42:56,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-21 15:42:56,241 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-21 15:42:56,331 INFO L244 CfgBuilder]: Building ICFG [2024-06-21 15:42:56,333 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-21 15:42:56,493 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-21 15:42:56,493 INFO L293 CfgBuilder]: Performing block encoding [2024-06-21 15:42:56,662 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-21 15:42:56,662 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-21 15:42:56,663 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 03:42:56 BoogieIcfgContainer [2024-06-21 15:42:56,664 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-21 15:42:56,665 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-21 15:42:56,667 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-21 15:42:56,669 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-21 15:42:56,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.06 03:42:55" (1/4) ... [2024-06-21 15:42:56,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b2fa3fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 03:42:56, skipping insertion in model container [2024-06-21 15:42:56,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 03:42:55" (2/4) ... [2024-06-21 15:42:56,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b2fa3fa and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 21.06 03:42:56, skipping insertion in model container [2024-06-21 15:42:56,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 03:42:56" (3/4) ... [2024-06-21 15:42:56,672 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b2fa3fa and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 21.06 03:42:56, skipping insertion in model container [2024-06-21 15:42:56,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 03:42:56" (4/4) ... [2024-06-21 15:42:56,673 INFO L112 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2024-06-21 15:42:56,687 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-21 15:42:56,687 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-21 15:42:56,687 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-21 15:42:56,729 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-06-21 15:42:56,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 32 transitions, 78 flow [2024-06-21 15:42:56,784 INFO L124 PetriNetUnfolderBase]: 1/30 cut-off events. [2024-06-21 15:42:56,785 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-21 15:42:56,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 30 events. 1/30 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 52 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2024-06-21 15:42:56,787 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 32 transitions, 78 flow [2024-06-21 15:42:56,791 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 27 transitions, 60 flow [2024-06-21 15:42:56,797 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-21 15:42:56,802 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;@5fa781b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-21 15:42:56,803 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-06-21 15:42:56,805 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-21 15:42:56,805 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-21 15:42:56,806 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-21 15:42:56,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 15:42:56,806 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-21 15:42:56,813 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-21 15:42:56,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 15:42:56,816 INFO L85 PathProgramCache]: Analyzing trace with hash 279065163, now seen corresponding path program 1 times [2024-06-21 15:42:56,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 15:42:56,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005096928] [2024-06-21 15:42:56,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 15:42:56,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 15:42:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 15:42:57,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 15:42:57,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 15:42:57,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005096928] [2024-06-21 15:42:57,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005096928] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 15:42:57,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 15:42:57,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-21 15:42:57,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986663359] [2024-06-21 15:42:57,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 15:42:57,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-21 15:42:57,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 15:42:57,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-21 15:42:57,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-21 15:42:57,080 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 32 [2024-06-21 15:42:57,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 27 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-06-21 15:42:57,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 15:42:57,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 32 [2024-06-21 15:42:57,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 15:42:57,159 INFO L124 PetriNetUnfolderBase]: 186/353 cut-off events. [2024-06-21 15:42:57,159 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-06-21 15:42:57,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 717 conditions, 353 events. 186/353 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1347 event pairs, 66 based on Foata normal form. 27/369 useless extension candidates. Maximal degree in co-relation 706. Up to 265 conditions per place. [2024-06-21 15:42:57,162 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 26 selfloop transitions, 2 changer transitions 0/34 dead transitions. [2024-06-21 15:42:57,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 34 transitions, 133 flow [2024-06-21 15:42:57,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-21 15:42:57,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-21 15:42:57,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2024-06-21 15:42:57,171 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5729166666666666 [2024-06-21 15:42:57,172 INFO L175 Difference]: Start difference. First operand has 33 places, 27 transitions, 60 flow. Second operand 3 states and 55 transitions. [2024-06-21 15:42:57,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 34 transitions, 133 flow [2024-06-21 15:42:57,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 34 transitions, 130 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-21 15:42:57,176 INFO L231 Difference]: Finished difference. Result has 34 places, 26 transitions, 66 flow [2024-06-21 15:42:57,177 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2024-06-21 15:42:57,179 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 1 predicate places. [2024-06-21 15:42:57,180 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 66 flow [2024-06-21 15:42:57,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-06-21 15:42:57,180 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 15:42:57,180 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 15:42:57,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-21 15:42:57,181 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-21 15:42:57,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 15:42:57,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1162422885, now seen corresponding path program 1 times [2024-06-21 15:42:57,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 15:42:57,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057533446] [2024-06-21 15:42:57,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 15:42:57,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 15:42:57,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 15:42:57,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 15:42:57,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 15:42:57,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057533446] [2024-06-21 15:42:57,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057533446] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 15:42:57,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 15:42:57,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-21 15:42:57,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073512885] [2024-06-21 15:42:57,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 15:42:57,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-21 15:42:57,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 15:42:57,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-21 15:42:57,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-21 15:42:57,298 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 32 [2024-06-21 15:42:57,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-06-21 15:42:57,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 15:42:57,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 32 [2024-06-21 15:42:57,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 15:42:57,435 INFO L124 PetriNetUnfolderBase]: 166/321 cut-off events. [2024-06-21 15:42:57,435 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-06-21 15:42:57,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 704 conditions, 321 events. 166/321 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1215 event pairs, 54 based on Foata normal form. 12/328 useless extension candidates. Maximal degree in co-relation 692. Up to 175 conditions per place. [2024-06-21 15:42:57,437 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 33 selfloop transitions, 3 changer transitions 0/42 dead transitions. [2024-06-21 15:42:57,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 42 transitions, 174 flow [2024-06-21 15:42:57,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-21 15:42:57,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-21 15:42:57,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2024-06-21 15:42:57,439 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.546875 [2024-06-21 15:42:57,439 INFO L175 Difference]: Start difference. First operand has 34 places, 26 transitions, 66 flow. Second operand 4 states and 70 transitions. [2024-06-21 15:42:57,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 42 transitions, 174 flow [2024-06-21 15:42:57,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 42 transitions, 170 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-21 15:42:57,440 INFO L231 Difference]: Finished difference. Result has 36 places, 26 transitions, 74 flow [2024-06-21 15:42:57,441 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=74, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2024-06-21 15:42:57,441 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 3 predicate places. [2024-06-21 15:42:57,441 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 74 flow [2024-06-21 15:42:57,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-06-21 15:42:57,442 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 15:42:57,442 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 15:42:57,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-21 15:42:57,442 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-21 15:42:57,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 15:42:57,443 INFO L85 PathProgramCache]: Analyzing trace with hash 396929347, now seen corresponding path program 1 times [2024-06-21 15:42:57,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 15:42:57,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676319127] [2024-06-21 15:42:57,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 15:42:57,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 15:42:57,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 15:42:57,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 15:42:57,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 15:42:57,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676319127] [2024-06-21 15:42:57,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676319127] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 15:42:57,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 15:42:57,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-21 15:42:57,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796740914] [2024-06-21 15:42:57,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 15:42:57,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-21 15:42:57,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 15:42:57,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-21 15:42:57,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-21 15:42:57,533 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 32 [2024-06-21 15:42:57,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 74 flow. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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) [2024-06-21 15:42:57,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 15:42:57,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 32 [2024-06-21 15:42:57,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 15:42:57,612 INFO L124 PetriNetUnfolderBase]: 172/333 cut-off events. [2024-06-21 15:42:57,612 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2024-06-21 15:42:57,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 333 events. 172/333 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1244 event pairs, 64 based on Foata normal form. 6/335 useless extension candidates. Maximal degree in co-relation 757. Up to 130 conditions per place. [2024-06-21 15:42:57,616 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 41 selfloop transitions, 4 changer transitions 0/50 dead transitions. [2024-06-21 15:42:57,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 50 transitions, 218 flow [2024-06-21 15:42:57,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-21 15:42:57,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-21 15:42:57,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 87 transitions. [2024-06-21 15:42:57,620 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.54375 [2024-06-21 15:42:57,620 INFO L175 Difference]: Start difference. First operand has 36 places, 26 transitions, 74 flow. Second operand 5 states and 87 transitions. [2024-06-21 15:42:57,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 50 transitions, 218 flow [2024-06-21 15:42:57,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 50 transitions, 212 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-21 15:42:57,625 INFO L231 Difference]: Finished difference. Result has 38 places, 26 transitions, 82 flow [2024-06-21 15:42:57,625 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=82, PETRI_PLACES=38, PETRI_TRANSITIONS=26} [2024-06-21 15:42:57,626 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places. [2024-06-21 15:42:57,626 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 26 transitions, 82 flow [2024-06-21 15:42:57,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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) [2024-06-21 15:42:57,629 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 15:42:57,629 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 15:42:57,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-21 15:42:57,630 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-21 15:42:57,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 15:42:57,631 INFO L85 PathProgramCache]: Analyzing trace with hash 281161945, now seen corresponding path program 1 times [2024-06-21 15:42:57,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 15:42:57,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331352089] [2024-06-21 15:42:57,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 15:42:57,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 15:42:57,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 15:42:57,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 15:42:57,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 15:42:57,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331352089] [2024-06-21 15:42:57,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331352089] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 15:42:57,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 15:42:57,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 15:42:57,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83211265] [2024-06-21 15:42:57,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 15:42:57,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-21 15:42:57,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 15:42:57,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-21 15:42:57,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-21 15:42:57,736 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 32 [2024-06-21 15:42:57,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 26 transitions, 82 flow. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 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) [2024-06-21 15:42:57,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 15:42:57,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 32 [2024-06-21 15:42:57,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 15:42:57,806 INFO L124 PetriNetUnfolderBase]: 148/291 cut-off events. [2024-06-21 15:42:57,806 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2024-06-21 15:42:57,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 677 conditions, 291 events. 148/291 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1060 event pairs, 52 based on Foata normal form. 18/305 useless extension candidates. Maximal degree in co-relation 663. Up to 106 conditions per place. [2024-06-21 15:42:57,807 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2024-06-21 15:42:57,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 48 transitions, 206 flow [2024-06-21 15:42:57,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-21 15:42:57,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-21 15:42:57,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 85 transitions. [2024-06-21 15:42:57,809 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.53125 [2024-06-21 15:42:57,809 INFO L175 Difference]: Start difference. First operand has 38 places, 26 transitions, 82 flow. Second operand 5 states and 85 transitions. [2024-06-21 15:42:57,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 48 transitions, 206 flow [2024-06-21 15:42:57,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 48 transitions, 192 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-06-21 15:42:57,810 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2024-06-21 15:42:57,810 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2024-06-21 15:42:57,811 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2024-06-21 15:42:57,811 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2024-06-21 15:42:57,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 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) [2024-06-21 15:42:57,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-06-21 15:42:57,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-06-21 15:42:57,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-06-21 15:42:57,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-06-21 15:42:57,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-21 15:42:57,815 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-06-21 15:42:57,817 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-21 15:42:57,817 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-21 15:42:57,821 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-06-21 15:42:57,821 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-06-21 15:42:57,822 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 03:42:57 BasicIcfg [2024-06-21 15:42:57,822 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-21 15:42:57,822 INFO L158 Benchmark]: Toolchain (without parser) took 2285.53ms. Allocated memory is still 188.7MB. Free memory was 114.0MB in the beginning and 85.4MB in the end (delta: 28.6MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2024-06-21 15:42:57,823 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-21 15:42:57,823 INFO L158 Benchmark]: Witness Parser took 0.74ms. Allocated memory is still 188.7MB. Free memory is still 117.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-21 15:42:57,823 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.88ms. Allocated memory is still 188.7MB. Free memory was 114.0MB in the beginning and 87.4MB in the end (delta: 26.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-06-21 15:42:57,823 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.73ms. Allocated memory is still 188.7MB. Free memory was 87.4MB in the beginning and 85.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-21 15:42:57,824 INFO L158 Benchmark]: Boogie Preprocessor took 67.18ms. Allocated memory is still 188.7MB. Free memory was 85.2MB in the beginning and 83.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-21 15:42:57,824 INFO L158 Benchmark]: RCFGBuilder took 514.99ms. Allocated memory is still 188.7MB. Free memory was 83.3MB in the beginning and 142.3MB in the end (delta: -59.1MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2024-06-21 15:42:57,824 INFO L158 Benchmark]: TraceAbstraction took 1156.57ms. Allocated memory is still 188.7MB. Free memory was 141.4MB in the beginning and 85.4MB in the end (delta: 56.0MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2024-06-21 15:42:57,826 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.74ms. Allocated memory is still 188.7MB. Free memory is still 117.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 474.88ms. Allocated memory is still 188.7MB. Free memory was 114.0MB in the beginning and 87.4MB in the end (delta: 26.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.73ms. Allocated memory is still 188.7MB. Free memory was 87.4MB in the beginning and 85.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.18ms. Allocated memory is still 188.7MB. Free memory was 85.2MB in the beginning and 83.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 514.99ms. Allocated memory is still 188.7MB. Free memory was 83.3MB in the beginning and 142.3MB in the end (delta: -59.1MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1156.57ms. Allocated memory is still 188.7MB. Free memory was 141.4MB in the beginning and 85.4MB in the end (delta: 56.0MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 721]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 722]: 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 5 procedures, 52 locations, 4 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: 1.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 100 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 310 IncrementalHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 13 mSDtfsCounter, 310 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=3, InterpolantAutomatonStates: 17, 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 196 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! [2024-06-21 15:42:57,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE