./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/mutex-meet/13-privatized_30-traces-oplus-vs-meet_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 76401ed0 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i ./goblint.2024-05-21_14-57-05.files/mutex-meet/13-privatized_30-traces-oplus-vs-meet_true.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-76401ed-m [2024-06-20 18:09:28,734 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-20 18:09:28,815 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-20 18:09:28,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-20 18:09:28,837 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-20 18:09:28,859 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-20 18:09:28,860 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-20 18:09:28,862 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-20 18:09:28,862 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-20 18:09:28,865 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-20 18:09:28,865 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-20 18:09:28,865 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-20 18:09:28,880 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-20 18:09:28,881 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-20 18:09:28,882 INFO L153 SettingsManager]: * Use SBE=true [2024-06-20 18:09:28,882 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-20 18:09:28,883 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-20 18:09:28,883 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-20 18:09:28,883 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-20 18:09:28,883 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-20 18:09:28,883 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-20 18:09:28,884 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-20 18:09:28,884 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-20 18:09:28,884 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-20 18:09:28,884 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-20 18:09:28,885 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-20 18:09:28,885 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-20 18:09:28,885 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-20 18:09:28,886 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-20 18:09:28,886 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-20 18:09:28,886 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-20 18:09:28,887 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-20 18:09:28,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 18:09:28,887 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-20 18:09:28,887 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-20 18:09:28,887 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-20 18:09:28,888 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-20 18:09:28,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-20 18:09:28,888 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-20 18:09:28,888 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-20 18:09:28,888 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-20 18:09:28,889 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-20 18:09:28,889 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-20 18:09:28,889 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-20 18:09:29,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-20 18:09:29,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-20 18:09:29,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-20 18:09:29,264 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-20 18:09:29,264 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-20 18:09:29,265 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/13-privatized_30-traces-oplus-vs-meet_true.yml/witness.yml [2024-06-20 18:09:29,431 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-20 18:09:29,433 INFO L274 PluginConnector]: CDTParser initialized [2024-06-20 18:09:29,434 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i [2024-06-20 18:09:30,897 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-20 18:09:31,277 INFO L384 CDTParser]: Found 1 translation units. [2024-06-20 18:09:31,278 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i [2024-06-20 18:09:31,314 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdb11978b/be49ba646b5446e6af956f5853663387/FLAGaafcb70b4 [2024-06-20 18:09:31,348 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdb11978b/be49ba646b5446e6af956f5853663387 [2024-06-20 18:09:31,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-20 18:09:31,353 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-20 18:09:31,356 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-20 18:09:31,368 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-20 18:09:31,372 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-20 18:09:31,372 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:09:29" (1/2) ... [2024-06-20 18:09:31,373 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64bb9571 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:09:31, skipping insertion in model container [2024-06-20 18:09:31,373 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:09:29" (1/2) ... [2024-06-20 18:09:31,375 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@29877c4c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:09:31, skipping insertion in model container [2024-06-20 18:09:31,375 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 06:09:31" (2/2) ... [2024-06-20 18:09:31,375 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64bb9571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:09:31, skipping insertion in model container [2024-06-20 18:09:31,375 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 06:09:31" (2/2) ... [2024-06-20 18:09:31,376 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-20 18:09:31,429 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-20 18:09:31,430 INFO L97 edCorrectnessWitness]: Location invariant before [L699-L699] ((! multithreaded || ((((0 <= g && g <= 5) && g <= 127) && g % 5 == 0) && (g == 0 || g == 5))) && (! multithreaded || (B_locked || ((((0 <= g && g <= 5) && g <= 127) && g % 5 == 0) && (g == 0 || g == 5))))) && (! multithreaded || (A_locked || g == 0)) [2024-06-20 18:09:31,430 INFO L103 edCorrectnessWitness]: ghost_variable A_locked = 0 [2024-06-20 18:09:31,430 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-20 18:09:31,430 INFO L103 edCorrectnessWitness]: ghost_variable B_locked = 0 [2024-06-20 18:09:31,430 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] B_locked = 1; [2024-06-20 18:09:31,431 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] B_locked = 1; [2024-06-20 18:09:31,431 INFO L106 edCorrectnessWitness]: ghost_update [L685-L685] A_locked = 1; [2024-06-20 18:09:31,431 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] B_locked = 1; [2024-06-20 18:09:31,431 INFO L106 edCorrectnessWitness]: ghost_update [L700-L700] A_locked = 1; [2024-06-20 18:09:31,431 INFO L106 edCorrectnessWitness]: ghost_update [L688-L688] B_locked = 0; [2024-06-20 18:09:31,431 INFO L106 edCorrectnessWitness]: ghost_update [L691-L691] B_locked = 0; [2024-06-20 18:09:31,431 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] multithreaded = 1; [2024-06-20 18:09:31,431 INFO L106 edCorrectnessWitness]: ghost_update [L692-L692] A_locked = 0; [2024-06-20 18:09:31,432 INFO L106 edCorrectnessWitness]: ghost_update [L702-L702] A_locked = 0; [2024-06-20 18:09:31,432 INFO L106 edCorrectnessWitness]: ghost_update [L703-L703] B_locked = 0; [2024-06-20 18:09:31,479 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-20 18:09:31,868 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 18:09:31,902 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-20 18:09:32,056 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 18:09:32,096 INFO L206 MainTranslator]: Completed translation [2024-06-20 18:09:32,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:09:32 WrapperNode [2024-06-20 18:09:32,102 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-20 18:09:32,103 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-20 18:09:32,103 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-20 18:09:32,103 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-20 18:09:32,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:09:32" (1/1) ... [2024-06-20 18:09:32,156 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:09:32" (1/1) ... [2024-06-20 18:09:32,207 INFO L138 Inliner]: procedures = 162, calls = 32, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 71 [2024-06-20 18:09:32,210 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-20 18:09:32,210 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-20 18:09:32,210 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-20 18:09:32,211 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-20 18:09:32,218 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:09:32" (1/1) ... [2024-06-20 18:09:32,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:09:32" (1/1) ... [2024-06-20 18:09:32,235 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:09:32" (1/1) ... [2024-06-20 18:09:32,272 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-06-20 18:09:32,273 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:09:32" (1/1) ... [2024-06-20 18:09:32,273 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:09:32" (1/1) ... [2024-06-20 18:09:32,281 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:09:32" (1/1) ... [2024-06-20 18:09:32,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:09:32" (1/1) ... [2024-06-20 18:09:32,292 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:09:32" (1/1) ... [2024-06-20 18:09:32,293 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:09:32" (1/1) ... [2024-06-20 18:09:32,294 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-20 18:09:32,295 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-20 18:09:32,295 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-20 18:09:32,295 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-20 18:09:32,296 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:09:32" (1/1) ... [2024-06-20 18:09:32,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 18:09:32,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-20 18:09:32,368 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-20 18:09:32,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-20 18:09:32,438 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-20 18:09:32,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-20 18:09:32,438 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-20 18:09:32,439 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-20 18:09:32,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-20 18:09:32,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-20 18:09:32,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-20 18:09:32,441 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-20 18:09:32,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-20 18:09:32,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-20 18:09:32,443 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-20 18:09:32,632 INFO L244 CfgBuilder]: Building ICFG [2024-06-20 18:09:32,635 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-20 18:09:32,919 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-20 18:09:32,921 INFO L293 CfgBuilder]: Performing block encoding [2024-06-20 18:09:33,109 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-20 18:09:33,109 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-20 18:09:33,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 06:09:33 BoogieIcfgContainer [2024-06-20 18:09:33,110 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-20 18:09:33,112 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-20 18:09:33,112 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-20 18:09:33,115 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-20 18:09:33,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:09:29" (1/4) ... [2024-06-20 18:09:33,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773ae1cb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.06 06:09:33, skipping insertion in model container [2024-06-20 18:09:33,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.06 06:09:31" (2/4) ... [2024-06-20 18:09:33,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773ae1cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 06:09:33, skipping insertion in model container [2024-06-20 18:09:33,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:09:32" (3/4) ... [2024-06-20 18:09:33,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773ae1cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 06:09:33, skipping insertion in model container [2024-06-20 18:09:33,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 06:09:33" (4/4) ... [2024-06-20 18:09:33,117 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_30-traces-oplus-vs-meet_true.i [2024-06-20 18:09:33,140 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-20 18:09:33,156 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-06-20 18:09:33,156 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-20 18:09:33,210 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-06-20 18:09:33,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 30 transitions, 67 flow [2024-06-20 18:09:33,306 INFO L124 PetriNetUnfolderBase]: 0/29 cut-off events. [2024-06-20 18:09:33,306 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-20 18:09:33,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 29 events. 0/29 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 23 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-06-20 18:09:33,308 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 30 transitions, 67 flow [2024-06-20 18:09:33,310 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 22 places, 18 transitions, 39 flow [2024-06-20 18:09:33,325 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-20 18:09:33,330 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;@7550e551, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-20 18:09:33,345 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-06-20 18:09:33,350 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-20 18:09:33,356 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-20 18:09:33,356 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-20 18:09:33,357 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:09:33,357 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-20 18:09:33,358 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-20 18:09:33,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:09:33,370 INFO L85 PathProgramCache]: Analyzing trace with hash 255623676, now seen corresponding path program 1 times [2024-06-20 18:09:33,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:09:33,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897418546] [2024-06-20 18:09:33,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:09:33,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:09:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:09:34,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:09:34,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:09:34,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897418546] [2024-06-20 18:09:34,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897418546] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:09:34,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:09:34,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-20 18:09:34,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361236668] [2024-06-20 18:09:34,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:09:34,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-20 18:09:34,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:09:34,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-20 18:09:34,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-20 18:09:34,124 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30 [2024-06-20 18:09:34,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:09:34,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:09:34,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30 [2024-06-20 18:09:34,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:09:34,186 INFO L124 PetriNetUnfolderBase]: 11/47 cut-off events. [2024-06-20 18:09:34,186 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-20 18:09:34,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 47 events. 11/47 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 8 based on Foata normal form. 7/52 useless extension candidates. Maximal degree in co-relation 81. Up to 25 conditions per place. [2024-06-20 18:09:34,202 INFO L140 encePairwiseOnDemand]: 26/30 looper letters, 11 selfloop transitions, 3 changer transitions 0/19 dead transitions. [2024-06-20 18:09:34,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 69 flow [2024-06-20 18:09:34,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-20 18:09:34,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-20 18:09:34,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 45 transitions. [2024-06-20 18:09:34,212 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-06-20 18:09:34,213 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 39 flow. Second operand 3 states and 45 transitions. [2024-06-20 18:09:34,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 69 flow [2024-06-20 18:09:34,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 19 transitions, 68 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-20 18:09:34,221 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 49 flow [2024-06-20 18:09:34,222 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=49, PETRI_PLACES=24, PETRI_TRANSITIONS=18} [2024-06-20 18:09:34,237 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2024-06-20 18:09:34,238 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 49 flow [2024-06-20 18:09:34,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:09:34,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:09:34,238 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:09:34,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-20 18:09:34,239 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-20 18:09:34,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:09:34,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1877359806, now seen corresponding path program 1 times [2024-06-20 18:09:34,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:09:34,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4791277] [2024-06-20 18:09:34,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:09:34,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:09:34,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:09:34,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:09:34,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:09:34,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4791277] [2024-06-20 18:09:34,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4791277] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:09:34,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:09:34,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-20 18:09:34,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557598591] [2024-06-20 18:09:34,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:09:34,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-20 18:09:34,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:09:34,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-20 18:09:34,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-20 18:09:34,591 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30 [2024-06-20 18:09:34,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 18 transitions, 49 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:09:34,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:09:34,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30 [2024-06-20 18:09:34,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:09:34,663 INFO L124 PetriNetUnfolderBase]: 10/46 cut-off events. [2024-06-20 18:09:34,663 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-06-20 18:09:34,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 46 events. 10/46 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 2 based on Foata normal form. 1/47 useless extension candidates. Maximal degree in co-relation 87. Up to 12 conditions per place. [2024-06-20 18:09:34,664 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 10 selfloop transitions, 7 changer transitions 0/22 dead transitions. [2024-06-20 18:09:34,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 22 transitions, 93 flow [2024-06-20 18:09:34,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-20 18:09:34,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-20 18:09:34,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 68 transitions. [2024-06-20 18:09:34,667 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4533333333333333 [2024-06-20 18:09:34,667 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 49 flow. Second operand 5 states and 68 transitions. [2024-06-20 18:09:34,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 22 transitions, 93 flow [2024-06-20 18:09:34,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 22 transitions, 87 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-20 18:09:34,671 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 61 flow [2024-06-20 18:09:34,671 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=61, PETRI_PLACES=27, PETRI_TRANSITIONS=18} [2024-06-20 18:09:34,672 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 5 predicate places. [2024-06-20 18:09:34,673 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 61 flow [2024-06-20 18:09:34,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:09:34,677 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:09:34,677 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:09:34,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-20 18:09:34,678 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-20 18:09:34,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:09:34,680 INFO L85 PathProgramCache]: Analyzing trace with hash 131932985, now seen corresponding path program 1 times [2024-06-20 18:09:34,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:09:34,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291556350] [2024-06-20 18:09:34,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:09:34,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:09:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:09:34,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:09:34,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:09:34,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291556350] [2024-06-20 18:09:34,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291556350] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:09:34,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:09:34,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-20 18:09:34,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460470481] [2024-06-20 18:09:34,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:09:34,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-20 18:09:34,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:09:34,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-20 18:09:34,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-20 18:09:34,907 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30 [2024-06-20 18:09:34,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 61 flow. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:09:34,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:09:34,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30 [2024-06-20 18:09:34,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:09:34,936 INFO L124 PetriNetUnfolderBase]: 9/38 cut-off events. [2024-06-20 18:09:34,936 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-06-20 18:09:34,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 38 events. 9/38 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 34 event pairs, 2 based on Foata normal form. 2/40 useless extension candidates. Maximal degree in co-relation 81. Up to 12 conditions per place. [2024-06-20 18:09:34,938 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2024-06-20 18:09:34,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 19 transitions, 87 flow [2024-06-20 18:09:34,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-20 18:09:34,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-20 18:09:34,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 55 transitions. [2024-06-20 18:09:34,957 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2024-06-20 18:09:34,957 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 61 flow. Second operand 4 states and 55 transitions. [2024-06-20 18:09:34,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 19 transitions, 87 flow [2024-06-20 18:09:34,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 19 transitions, 68 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-06-20 18:09:34,960 INFO L231 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2024-06-20 18:09:34,960 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2024-06-20 18:09:34,961 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 1 predicate places. [2024-06-20 18:09:34,961 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 0 transitions, 0 flow [2024-06-20 18:09:34,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:09:34,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-06-20 18:09:34,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-06-20 18:09:34,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-20 18:09:34,964 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-06-20 18:09:34,967 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-20 18:09:34,967 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-20 18:09:34,971 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-20 18:09:34,971 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-20 18:09:34,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.06 06:09:34 BasicIcfg [2024-06-20 18:09:34,972 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-20 18:09:34,974 INFO L158 Benchmark]: Toolchain (without parser) took 3619.64ms. Allocated memory is still 205.5MB. Free memory was 174.2MB in the beginning and 80.9MB in the end (delta: 93.3MB). Peak memory consumption was 93.3MB. Max. memory is 16.1GB. [2024-06-20 18:09:34,974 INFO L158 Benchmark]: Witness Parser took 5.28ms. Allocated memory is still 132.1MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 18:09:34,974 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 132.1MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 18:09:34,976 INFO L158 Benchmark]: CACSL2BoogieTranslator took 746.73ms. Allocated memory is still 205.5MB. Free memory was 174.2MB in the beginning and 148.1MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-06-20 18:09:34,976 INFO L158 Benchmark]: Boogie Procedure Inliner took 106.59ms. Allocated memory is still 205.5MB. Free memory was 148.1MB in the beginning and 146.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-20 18:09:34,977 INFO L158 Benchmark]: Boogie Preprocessor took 84.08ms. Allocated memory is still 205.5MB. Free memory was 146.0MB in the beginning and 143.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-20 18:09:34,977 INFO L158 Benchmark]: RCFGBuilder took 815.67ms. Allocated memory is still 205.5MB. Free memory was 143.0MB in the beginning and 113.4MB in the end (delta: 29.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-06-20 18:09:34,977 INFO L158 Benchmark]: TraceAbstraction took 1859.60ms. Allocated memory is still 205.5MB. Free memory was 112.5MB in the beginning and 80.9MB in the end (delta: 31.6MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2024-06-20 18:09:34,981 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 5.28ms. Allocated memory is still 132.1MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 132.1MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 746.73ms. Allocated memory is still 205.5MB. Free memory was 174.2MB in the beginning and 148.1MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 106.59ms. Allocated memory is still 205.5MB. Free memory was 148.1MB in the beginning and 146.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.08ms. Allocated memory is still 205.5MB. Free memory was 146.0MB in the beginning and 143.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 815.67ms. Allocated memory is still 205.5MB. Free memory was 143.0MB in the beginning and 113.4MB in the end (delta: 29.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1859.60ms. Allocated memory is still 205.5MB. Free memory was 112.5MB in the beginning and 80.9MB in the end (delta: 31.6MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: 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, 46 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: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92 IncrementalHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 2 mSDtfsCounter, 92 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=2, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 74 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! [2024-06-20 18:09:35,022 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