./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-06-19_11-23-25.files/protection/13-privatized_44-traces-mine2_true.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/goblint-regression/13-privatized_44-traces-mine2_true.i ./goblint.2024-06-19_11-23-25.files/protection/13-privatized_44-traces-mine2_true.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-eb4cb34-m [2024-06-21 16:05:19,222 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-21 16:05:19,285 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-21 16:05:19,289 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-21 16:05:19,289 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-21 16:05:19,314 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-21 16:05:19,315 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-21 16:05:19,315 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-21 16:05:19,315 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-21 16:05:19,319 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-21 16:05:19,319 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-21 16:05:19,319 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-21 16:05:19,320 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-21 16:05:19,321 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-21 16:05:19,321 INFO L153 SettingsManager]: * Use SBE=true [2024-06-21 16:05:19,321 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-21 16:05:19,321 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-21 16:05:19,322 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-21 16:05:19,322 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-21 16:05:19,322 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-21 16:05:19,322 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-21 16:05:19,322 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-21 16:05:19,323 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-21 16:05:19,323 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-21 16:05:19,323 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-21 16:05:19,323 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-21 16:05:19,323 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-21 16:05:19,324 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-21 16:05:19,324 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-21 16:05:19,324 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-21 16:05:19,325 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-21 16:05:19,325 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-21 16:05:19,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-21 16:05:19,326 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-21 16:05:19,326 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-21 16:05:19,326 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-21 16:05:19,326 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-21 16:05:19,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-21 16:05:19,327 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-21 16:05:19,327 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-21 16:05:19,327 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-21 16:05:19,327 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-21 16:05:19,327 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-21 16:05:19,327 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-21 16:05:19,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-21 16:05:19,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-21 16:05:19,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-21 16:05:19,547 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-21 16:05:19,547 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-21 16:05:19,548 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/13-privatized_44-traces-mine2_true.yml/witness.yml [2024-06-21 16:05:19,641 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-21 16:05:19,641 INFO L274 PluginConnector]: CDTParser initialized [2024-06-21 16:05:19,642 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i [2024-06-21 16:05:20,633 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-21 16:05:20,836 INFO L384 CDTParser]: Found 1 translation units. [2024-06-21 16:05:20,837 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i [2024-06-21 16:05:20,847 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/882fd19a4/ed3d9b5090684970aa56b0be3bdf1b44/FLAGef50b5690 [2024-06-21 16:05:20,857 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/882fd19a4/ed3d9b5090684970aa56b0be3bdf1b44 [2024-06-21 16:05:20,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-21 16:05:20,859 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-21 16:05:20,860 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-21 16:05:20,860 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-21 16:05:20,868 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-21 16:05:20,869 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 04:05:19" (1/2) ... [2024-06-21 16:05:20,869 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d59b1d8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 04:05:20, skipping insertion in model container [2024-06-21 16:05:20,870 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 04:05:19" (1/2) ... [2024-06-21 16:05:20,871 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@15fdf9b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 04:05:20, skipping insertion in model container [2024-06-21 16:05:20,871 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 04:05:20" (2/2) ... [2024-06-21 16:05:20,871 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d59b1d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:20, skipping insertion in model container [2024-06-21 16:05:20,873 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 04:05:20" (2/2) ... [2024-06-21 16:05:20,873 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-21 16:05:20,897 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-21 16:05:20,899 INFO L97 edCorrectnessWitness]: Location invariant before [L697-L697] (! multithreaded || (A_locked || g == 3)) && (! multithreaded || ((g == 1 || g == 2) || g == 3)) [2024-06-21 16:05:20,900 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-21 16:05:20,900 INFO L103 edCorrectnessWitness]: ghost_variable B_locked = 0 [2024-06-21 16:05:20,900 INFO L103 edCorrectnessWitness]: ghost_variable A_locked = 0 [2024-06-21 16:05:20,900 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] B_locked = 0; [2024-06-21 16:05:20,901 INFO L106 edCorrectnessWitness]: ghost_update [L691-L691] A_locked = 0; [2024-06-21 16:05:20,901 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] B_locked = 1; [2024-06-21 16:05:20,901 INFO L106 edCorrectnessWitness]: ghost_update [L687-L687] B_locked = 1; [2024-06-21 16:05:20,901 INFO L106 edCorrectnessWitness]: ghost_update [L685-L685] A_locked = 1; [2024-06-21 16:05:20,901 INFO L106 edCorrectnessWitness]: ghost_update [L696-L696] multithreaded = 1; [2024-06-21 16:05:20,901 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] A_locked = 1; [2024-06-21 16:05:20,937 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-21 16:05:21,208 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-21 16:05:21,216 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 [2024-06-21 16:05:21,286 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-21 16:05:21,322 INFO L206 MainTranslator]: Completed translation [2024-06-21 16:05:21,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:21 WrapperNode [2024-06-21 16:05:21,323 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-21 16:05:21,324 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-21 16:05:21,324 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-21 16:05:21,324 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-21 16:05:21,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:21" (1/1) ... [2024-06-21 16:05:21,353 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:21" (1/1) ... [2024-06-21 16:05:21,373 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 62 [2024-06-21 16:05:21,373 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-21 16:05:21,374 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-21 16:05:21,374 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-21 16:05:21,374 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-21 16:05:21,382 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:21" (1/1) ... [2024-06-21 16:05:21,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:21" (1/1) ... [2024-06-21 16:05:21,388 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:21" (1/1) ... [2024-06-21 16:05:21,403 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 16:05:21,403 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:21" (1/1) ... [2024-06-21 16:05:21,404 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:21" (1/1) ... [2024-06-21 16:05:21,416 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:21" (1/1) ... [2024-06-21 16:05:21,417 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:21" (1/1) ... [2024-06-21 16:05:21,421 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:21" (1/1) ... [2024-06-21 16:05:21,422 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:21" (1/1) ... [2024-06-21 16:05:21,425 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-21 16:05:21,427 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-21 16:05:21,427 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-21 16:05:21,427 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-21 16:05:21,427 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:21" (1/1) ... [2024-06-21 16:05:21,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-21 16:05:21,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-21 16:05:21,448 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 16:05:21,467 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 16:05:21,479 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-21 16:05:21,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-21 16:05:21,479 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-21 16:05:21,479 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-21 16:05:21,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-21 16:05:21,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-21 16:05:21,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-21 16:05:21,480 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-21 16:05:21,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-21 16:05:21,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-21 16:05:21,481 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 16:05:21,564 INFO L244 CfgBuilder]: Building ICFG [2024-06-21 16:05:21,566 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-21 16:05:21,686 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-21 16:05:21,686 INFO L293 CfgBuilder]: Performing block encoding [2024-06-21 16:05:21,802 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-21 16:05:21,802 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-21 16:05:21,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 04:05:21 BoogieIcfgContainer [2024-06-21 16:05:21,803 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-21 16:05:21,804 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-21 16:05:21,804 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-21 16:05:21,807 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-21 16:05:21,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 04:05:19" (1/4) ... [2024-06-21 16:05:21,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@748cdc7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 21.06 04:05:21, skipping insertion in model container [2024-06-21 16:05:21,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.06 04:05:20" (2/4) ... [2024-06-21 16:05:21,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@748cdc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 04:05:21, skipping insertion in model container [2024-06-21 16:05:21,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 04:05:21" (3/4) ... [2024-06-21 16:05:21,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@748cdc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 04:05:21, skipping insertion in model container [2024-06-21 16:05:21,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 04:05:21" (4/4) ... [2024-06-21 16:05:21,809 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_44-traces-mine2_true.i [2024-06-21 16:05:21,822 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-21 16:05:21,822 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-06-21 16:05:21,822 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-21 16:05:21,857 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-21 16:05:21,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 24 places, 20 transitions, 44 flow [2024-06-21 16:05:21,933 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-06-21 16:05:21,935 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-21 16:05:21,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23 conditions, 19 events. 0/19 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-06-21 16:05:21,964 INFO L82 GeneralOperation]: Start removeDead. Operand has 24 places, 20 transitions, 44 flow [2024-06-21 16:05:21,967 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 18 places, 14 transitions, 31 flow [2024-06-21 16:05:21,992 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-21 16:05:21,997 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;@69460edd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-21 16:05:21,998 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-06-21 16:05:22,005 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-21 16:05:22,005 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-21 16:05:22,005 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-21 16:05:22,005 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 16:05:22,006 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-21 16:05:22,006 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-21 16:05:22,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 16:05:22,029 INFO L85 PathProgramCache]: Analyzing trace with hash 225141583, now seen corresponding path program 1 times [2024-06-21 16:05:22,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 16:05:22,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403901140] [2024-06-21 16:05:22,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 16:05:22,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 16:05:22,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 16:05:22,269 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 16:05:22,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 16:05:22,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403901140] [2024-06-21 16:05:22,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403901140] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 16:05:22,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 16:05:22,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-21 16:05:22,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724834415] [2024-06-21 16:05:22,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 16:05:22,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-21 16:05:22,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 16:05:22,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-21 16:05:22,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-21 16:05:22,314 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-06-21 16:05:22,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 14 transitions, 31 flow. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 16:05:22,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 16:05:22,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-06-21 16:05:22,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 16:05:22,355 INFO L124 PetriNetUnfolderBase]: 11/39 cut-off events. [2024-06-21 16:05:22,356 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-21 16:05:22,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 39 events. 11/39 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 7 based on Foata normal form. 5/43 useless extension candidates. Maximal degree in co-relation 71. Up to 20 conditions per place. [2024-06-21 16:05:22,358 INFO L140 encePairwiseOnDemand]: 16/20 looper letters, 10 selfloop transitions, 3 changer transitions 0/15 dead transitions. [2024-06-21 16:05:22,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 15 transitions, 59 flow [2024-06-21 16:05:22,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-21 16:05:22,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-21 16:05:22,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 26 transitions. [2024-06-21 16:05:22,367 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43333333333333335 [2024-06-21 16:05:22,368 INFO L175 Difference]: Start difference. First operand has 18 places, 14 transitions, 31 flow. Second operand 3 states and 26 transitions. [2024-06-21 16:05:22,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 15 transitions, 59 flow [2024-06-21 16:05:22,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 15 transitions, 58 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-21 16:05:22,373 INFO L231 Difference]: Finished difference. Result has 20 places, 14 transitions, 41 flow [2024-06-21 16:05:22,375 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=41, PETRI_PLACES=20, PETRI_TRANSITIONS=14} [2024-06-21 16:05:22,378 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 2 predicate places. [2024-06-21 16:05:22,378 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 41 flow [2024-06-21 16:05:22,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 16:05:22,379 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 16:05:22,379 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 16:05:22,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-21 16:05:22,379 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-21 16:05:22,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 16:05:22,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1528129030, now seen corresponding path program 1 times [2024-06-21 16:05:22,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 16:05:22,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359501721] [2024-06-21 16:05:22,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 16:05:22,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 16:05:22,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 16:05:22,492 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 16:05:22,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 16:05:22,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359501721] [2024-06-21 16:05:22,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359501721] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 16:05:22,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 16:05:22,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 16:05:22,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835538776] [2024-06-21 16:05:22,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 16:05:22,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-21 16:05:22,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 16:05:22,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-21 16:05:22,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-21 16:05:22,501 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 20 [2024-06-21 16:05:22,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 14 transitions, 41 flow. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 16:05:22,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 16:05:22,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 20 [2024-06-21 16:05:22,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 16:05:22,537 INFO L124 PetriNetUnfolderBase]: 9/35 cut-off events. [2024-06-21 16:05:22,537 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-06-21 16:05:22,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 35 events. 9/35 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 3 based on Foata normal form. 2/36 useless extension candidates. Maximal degree in co-relation 72. Up to 16 conditions per place. [2024-06-21 16:05:22,538 INFO L140 encePairwiseOnDemand]: 13/20 looper letters, 9 selfloop transitions, 6 changer transitions 0/16 dead transitions. [2024-06-21 16:05:22,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 16 transitions, 75 flow [2024-06-21 16:05:22,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-21 16:05:22,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-21 16:05:22,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 34 transitions. [2024-06-21 16:05:22,540 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2833333333333333 [2024-06-21 16:05:22,540 INFO L175 Difference]: Start difference. First operand has 20 places, 14 transitions, 41 flow. Second operand 6 states and 34 transitions. [2024-06-21 16:05:22,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 16 transitions, 75 flow [2024-06-21 16:05:22,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 16 transitions, 69 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-21 16:05:22,542 INFO L231 Difference]: Finished difference. Result has 24 places, 14 transitions, 51 flow [2024-06-21 16:05:22,542 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=35, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=51, PETRI_PLACES=24, PETRI_TRANSITIONS=14} [2024-06-21 16:05:22,542 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 6 predicate places. [2024-06-21 16:05:22,543 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 14 transitions, 51 flow [2024-06-21 16:05:22,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 16:05:22,543 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 16:05:22,543 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 16:05:22,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-21 16:05:22,544 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-21 16:05:22,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 16:05:22,544 INFO L85 PathProgramCache]: Analyzing trace with hash 653971547, now seen corresponding path program 1 times [2024-06-21 16:05:22,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 16:05:22,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444308811] [2024-06-21 16:05:22,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 16:05:22,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 16:05:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 16:05:22,611 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 16:05:22,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 16:05:22,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444308811] [2024-06-21 16:05:22,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444308811] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 16:05:22,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 16:05:22,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 16:05:22,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641487760] [2024-06-21 16:05:22,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 16:05:22,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-21 16:05:22,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 16:05:22,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-21 16:05:22,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-21 16:05:22,629 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 20 [2024-06-21 16:05:22,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 14 transitions, 51 flow. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 16:05:22,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 16:05:22,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 20 [2024-06-21 16:05:22,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 16:05:22,679 INFO L124 PetriNetUnfolderBase]: 8/29 cut-off events. [2024-06-21 16:05:22,679 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-06-21 16:05:22,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 29 events. 8/29 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 25 event pairs, 2 based on Foata normal form. 2/30 useless extension candidates. Maximal degree in co-relation 63. Up to 12 conditions per place. [2024-06-21 16:05:22,680 INFO L140 encePairwiseOnDemand]: 13/20 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2024-06-21 16:05:22,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 15 transitions, 77 flow [2024-06-21 16:05:22,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-21 16:05:22,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-21 16:05:22,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 33 transitions. [2024-06-21 16:05:22,683 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.275 [2024-06-21 16:05:22,683 INFO L175 Difference]: Start difference. First operand has 24 places, 14 transitions, 51 flow. Second operand 6 states and 33 transitions. [2024-06-21 16:05:22,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 15 transitions, 77 flow [2024-06-21 16:05:22,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 15 transitions, 60 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-06-21 16:05:22,686 INFO L231 Difference]: Finished difference. Result has 21 places, 0 transitions, 0 flow [2024-06-21 16:05:22,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=21, PETRI_TRANSITIONS=0} [2024-06-21 16:05:22,687 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 3 predicate places. [2024-06-21 16:05:22,687 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 0 transitions, 0 flow [2024-06-21 16:05:22,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 16:05:22,692 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-06-21 16:05:22,692 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-06-21 16:05:22,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-21 16:05:22,693 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-06-21 16:05:22,695 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-21 16:05:22,695 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-21 16:05:22,700 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-21 16:05:22,700 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-21 16:05:22,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 04:05:22 BasicIcfg [2024-06-21 16:05:22,701 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-21 16:05:22,702 INFO L158 Benchmark]: Toolchain (without parser) took 1842.94ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 59.3MB in the end (delta: 51.2MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. [2024-06-21 16:05:22,704 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 90.2MB. Free memory was 59.5MB in the beginning and 59.5MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-21 16:05:22,704 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 142.6MB. Free memory is still 119.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-21 16:05:22,706 INFO L158 Benchmark]: CACSL2BoogieTranslator took 463.30ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 97.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-06-21 16:05:22,707 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.89ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 96.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-21 16:05:22,707 INFO L158 Benchmark]: Boogie Preprocessor took 51.99ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 94.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-21 16:05:22,707 INFO L158 Benchmark]: RCFGBuilder took 376.28ms. Allocated memory is still 142.6MB. Free memory was 93.7MB in the beginning and 66.4MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-06-21 16:05:22,707 INFO L158 Benchmark]: TraceAbstraction took 897.08ms. Allocated memory is still 142.6MB. Free memory was 65.5MB in the beginning and 59.3MB in the end (delta: 6.2MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2024-06-21 16:05:22,712 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 90.2MB. Free memory was 59.5MB in the beginning and 59.5MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 142.6MB. Free memory is still 119.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 463.30ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 97.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.89ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 96.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.99ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 94.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 376.28ms. Allocated memory is still 142.6MB. Free memory was 93.7MB in the beginning and 66.4MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 897.08ms. Allocated memory is still 142.6MB. Free memory was 65.5MB in the beginning and 59.3MB in the end (delta: 6.2MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 697]: 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 3 procedures, 32 locations, 2 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: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92 IncrementalHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 mSDtfsCounter, 92 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=2, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-21 16:05:22,735 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