./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.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_19-publish-precision_unknown_2_neg.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_19-publish-precision_unknown_2_neg.i ./goblint.2024-05-21_14-57-05.files/mutex-meet/13-privatized_19-publish-precision_unknown_2_neg.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 20:04:51,104 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-20 20:04:51,179 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-20 20:04:51,191 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-20 20:04:51,192 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-20 20:04:51,215 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-20 20:04:51,216 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-20 20:04:51,216 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-20 20:04:51,217 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-20 20:04:51,220 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-20 20:04:51,220 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-20 20:04:51,220 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-20 20:04:51,221 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-20 20:04:51,222 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-20 20:04:51,222 INFO L153 SettingsManager]: * Use SBE=true [2024-06-20 20:04:51,223 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-20 20:04:51,223 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-20 20:04:51,223 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-20 20:04:51,223 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-20 20:04:51,224 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-20 20:04:51,224 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-20 20:04:51,225 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-20 20:04:51,225 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-20 20:04:51,225 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-20 20:04:51,225 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-20 20:04:51,226 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-20 20:04:51,226 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-20 20:04:51,226 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-20 20:04:51,227 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-20 20:04:51,227 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-20 20:04:51,228 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-20 20:04:51,228 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-20 20:04:51,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 20:04:51,228 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-20 20:04:51,228 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-20 20:04:51,228 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-20 20:04:51,229 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-20 20:04:51,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-20 20:04:51,229 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-20 20:04:51,229 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-20 20:04:51,229 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-20 20:04:51,230 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-20 20:04:51,230 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-20 20:04:51,230 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-20 20:04:51,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-20 20:04:51,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-20 20:04:51,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-20 20:04:51,477 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-20 20:04:51,478 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-20 20:04:51,479 INFO L431 ainManager$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_19-publish-precision_unknown_2_neg.yml/witness.yml [2024-06-20 20:04:51,590 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-20 20:04:51,591 INFO L274 PluginConnector]: CDTParser initialized [2024-06-20 20:04:51,592 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2024-06-20 20:04:52,686 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-20 20:04:52,903 INFO L384 CDTParser]: Found 1 translation units. [2024-06-20 20:04:52,903 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2024-06-20 20:04:52,914 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba8be944c/34b81585163b4a54b29d5808f31b45c5/FLAGc2f3281b1 [2024-06-20 20:04:52,942 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba8be944c/34b81585163b4a54b29d5808f31b45c5 [2024-06-20 20:04:52,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-20 20:04:52,944 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-20 20:04:52,946 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-20 20:04:52,946 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-20 20:04:52,950 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-20 20:04:52,951 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 08:04:51" (1/2) ... [2024-06-20 20:04:52,953 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@223a787d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 08:04:52, skipping insertion in model container [2024-06-20 20:04:52,953 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 08:04:51" (1/2) ... [2024-06-20 20:04:52,954 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@dbf6384 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 08:04:52, skipping insertion in model container [2024-06-20 20:04:52,954 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 08:04:52" (2/2) ... [2024-06-20 20:04:52,955 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@223a787d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:52, skipping insertion in model container [2024-06-20 20:04:52,955 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 08:04:52" (2/2) ... [2024-06-20 20:04:52,955 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-20 20:04:52,985 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-20 20:04:52,986 INFO L97 edCorrectnessWitness]: Location invariant before [L698-L698] ((! multithreaded || ((((0 <= glob1 && glob1 <= 5) && glob1 <= 127) && glob1 % 5 == 0) && (glob1 == 0 || glob1 == 5))) && (! multithreaded || (mutex2_locked || ((((0 <= glob1 && glob1 <= 5) && glob1 <= 127) && glob1 % 5 == 0) && (glob1 == 0 || glob1 == 5))))) && (! multithreaded || (mutex1_locked || glob1 == 0)) [2024-06-20 20:04:52,986 INFO L103 edCorrectnessWitness]: ghost_variable mutex2_locked = 0 [2024-06-20 20:04:52,986 INFO L103 edCorrectnessWitness]: ghost_variable mutex1_locked = 0 [2024-06-20 20:04:52,986 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-20 20:04:52,987 INFO L106 edCorrectnessWitness]: ghost_update [L700-L700] mutex2_locked = 0; [2024-06-20 20:04:52,987 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] mutex2_locked = 1; [2024-06-20 20:04:52,987 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] multithreaded = 1; [2024-06-20 20:04:52,987 INFO L106 edCorrectnessWitness]: ghost_update [L688-L688] mutex2_locked = 0; [2024-06-20 20:04:52,987 INFO L106 edCorrectnessWitness]: ghost_update [L691-L691] mutex2_locked = 0; [2024-06-20 20:04:52,988 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] mutex2_locked = 1; [2024-06-20 20:04:52,988 INFO L106 edCorrectnessWitness]: ghost_update [L692-L692] mutex1_locked = 0; [2024-06-20 20:04:52,988 INFO L106 edCorrectnessWitness]: ghost_update [L685-L685] mutex1_locked = 1; [2024-06-20 20:04:52,988 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] mutex2_locked = 1; [2024-06-20 20:04:53,021 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-20 20:04:53,323 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 20:04:53,334 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 [2024-06-20 20:04:53,411 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 20:04:53,436 INFO L206 MainTranslator]: Completed translation [2024-06-20 20:04:53,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:53 WrapperNode [2024-06-20 20:04:53,437 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-20 20:04:53,438 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-20 20:04:53,438 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-20 20:04:53,438 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-20 20:04:53,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:53" (1/1) ... [2024-06-20 20:04:53,454 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:53" (1/1) ... [2024-06-20 20:04:53,485 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2024-06-20 20:04:53,486 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-20 20:04:53,486 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-20 20:04:53,486 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-20 20:04:53,486 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-20 20:04:53,495 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:53" (1/1) ... [2024-06-20 20:04:53,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:53" (1/1) ... [2024-06-20 20:04:53,507 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:53" (1/1) ... [2024-06-20 20:04:53,526 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 20:04:53,527 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:53" (1/1) ... [2024-06-20 20:04:53,527 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:53" (1/1) ... [2024-06-20 20:04:53,536 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:53" (1/1) ... [2024-06-20 20:04:53,537 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:53" (1/1) ... [2024-06-20 20:04:53,538 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:53" (1/1) ... [2024-06-20 20:04:53,539 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:53" (1/1) ... [2024-06-20 20:04:53,541 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-20 20:04:53,541 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-20 20:04:53,541 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-20 20:04:53,541 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-20 20:04:53,542 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:53" (1/1) ... [2024-06-20 20:04:53,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 20:04:53,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-20 20:04:53,705 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 20:04:53,707 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 20:04:53,736 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-20 20:04:53,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-20 20:04:53,736 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-20 20:04:53,736 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-20 20:04:53,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-20 20:04:53,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-20 20:04:53,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-20 20:04:53,737 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-20 20:04:53,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-20 20:04:53,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-20 20:04:53,738 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 20:04:53,888 INFO L244 CfgBuilder]: Building ICFG [2024-06-20 20:04:53,890 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-20 20:04:54,045 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-20 20:04:54,045 INFO L293 CfgBuilder]: Performing block encoding [2024-06-20 20:04:54,155 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-20 20:04:54,155 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-20 20:04:54,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 08:04:54 BoogieIcfgContainer [2024-06-20 20:04:54,156 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-20 20:04:54,158 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-20 20:04:54,158 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-20 20:04:54,160 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-20 20:04:54,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 08:04:51" (1/4) ... [2024-06-20 20:04:54,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74a6f8e0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.06 08:04:54, skipping insertion in model container [2024-06-20 20:04:54,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.06 08:04:52" (2/4) ... [2024-06-20 20:04:54,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74a6f8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 08:04:54, skipping insertion in model container [2024-06-20 20:04:54,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:53" (3/4) ... [2024-06-20 20:04:54,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74a6f8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 08:04:54, skipping insertion in model container [2024-06-20 20:04:54,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 08:04:54" (4/4) ... [2024-06-20 20:04:54,163 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_neg.i [2024-06-20 20:04:54,176 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-20 20:04:54,176 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-06-20 20:04:54,176 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-20 20:04:54,208 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-06-20 20:04:54,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 26 transitions, 59 flow [2024-06-20 20:04:54,260 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-06-20 20:04:54,260 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-20 20:04:54,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 25 events. 0/25 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 15 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-06-20 20:04:54,262 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 26 transitions, 59 flow [2024-06-20 20:04:54,265 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 22 places, 18 transitions, 39 flow [2024-06-20 20:04:54,274 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-20 20:04:54,279 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;@3d785755, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-20 20:04:54,279 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-06-20 20:04:54,282 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-20 20:04:54,282 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-20 20:04:54,282 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-20 20:04:54,282 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 20:04:54,283 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-20 20:04:54,283 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-20 20:04:54,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 20:04:54,287 INFO L85 PathProgramCache]: Analyzing trace with hash 208384109, now seen corresponding path program 1 times [2024-06-20 20:04:54,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 20:04:54,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485023610] [2024-06-20 20:04:54,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 20:04:54,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 20:04:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 20:04:54,583 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 20:04:54,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 20:04:54,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485023610] [2024-06-20 20:04:54,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485023610] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 20:04:54,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 20:04:54,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-20 20:04:54,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199261367] [2024-06-20 20:04:54,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 20:04:54,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-20 20:04:54,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 20:04:54,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-20 20:04:54,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-20 20:04:54,630 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 26 [2024-06-20 20:04:54,633 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 20:04:54,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 20:04:54,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 26 [2024-06-20 20:04:54,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 20:04:54,664 INFO L124 PetriNetUnfolderBase]: 11/47 cut-off events. [2024-06-20 20:04:54,664 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-20 20:04:54,665 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 65 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 20:04:54,666 INFO L140 encePairwiseOnDemand]: 22/26 looper letters, 11 selfloop transitions, 3 changer transitions 0/19 dead transitions. [2024-06-20 20:04:54,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 69 flow [2024-06-20 20:04:54,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-20 20:04:54,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-20 20:04:54,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 39 transitions. [2024-06-20 20:04:54,674 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-06-20 20:04:54,676 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 39 flow. Second operand 3 states and 39 transitions. [2024-06-20 20:04:54,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 69 flow [2024-06-20 20:04:54,678 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 20:04:54,679 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 49 flow [2024-06-20 20:04:54,680 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, 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 20:04:54,683 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2024-06-20 20:04:54,683 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 49 flow [2024-06-20 20:04:54,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 20:04:54,683 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 20:04:54,683 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 20:04:54,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-20 20:04:54,684 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-20 20:04:54,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 20:04:54,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1926225186, now seen corresponding path program 1 times [2024-06-20 20:04:54,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 20:04:54,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160660639] [2024-06-20 20:04:54,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 20:04:54,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 20:04:54,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 20:04:54,879 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 20:04:54,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 20:04:54,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160660639] [2024-06-20 20:04:54,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160660639] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 20:04:54,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 20:04:54,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-20 20:04:54,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465165609] [2024-06-20 20:04:54,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 20:04:54,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-20 20:04:54,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 20:04:54,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-20 20:04:54,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-20 20:04:54,894 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 26 [2024-06-20 20:04:54,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 18 transitions, 49 flow. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 20:04:54,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 20:04:54,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 26 [2024-06-20 20:04:54,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 20:04:54,925 INFO L124 PetriNetUnfolderBase]: 10/46 cut-off events. [2024-06-20 20:04:54,925 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-06-20 20:04:54,926 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 62 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 20:04:54,926 INFO L140 encePairwiseOnDemand]: 18/26 looper letters, 10 selfloop transitions, 7 changer transitions 0/22 dead transitions. [2024-06-20 20:04:54,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 22 transitions, 93 flow [2024-06-20 20:04:54,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-20 20:04:54,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-20 20:04:54,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 58 transitions. [2024-06-20 20:04:54,928 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4461538461538462 [2024-06-20 20:04:54,928 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 49 flow. Second operand 5 states and 58 transitions. [2024-06-20 20:04:54,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 22 transitions, 93 flow [2024-06-20 20:04:54,928 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 20:04:54,929 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 61 flow [2024-06-20 20:04:54,929 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, 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 20:04:54,930 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 5 predicate places. [2024-06-20 20:04:54,930 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 61 flow [2024-06-20 20:04:54,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 20:04:54,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 20:04:54,930 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 20:04:54,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-20 20:04:54,931 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-20 20:04:54,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 20:04:54,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1646759114, now seen corresponding path program 1 times [2024-06-20 20:04:54,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 20:04:54,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889457879] [2024-06-20 20:04:54,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 20:04:54,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 20:04:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 20:04:55,001 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 20:04:55,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 20:04:55,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889457879] [2024-06-20 20:04:55,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889457879] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 20:04:55,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 20:04:55,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-20 20:04:55,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615024647] [2024-06-20 20:04:55,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 20:04:55,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-20 20:04:55,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 20:04:55,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-20 20:04:55,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-20 20:04:55,007 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 26 [2024-06-20 20:04:55,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 61 flow. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 20:04:55,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 20:04:55,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 26 [2024-06-20 20:04:55,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 20:04:55,054 INFO L124 PetriNetUnfolderBase]: 9/38 cut-off events. [2024-06-20 20:04:55,055 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-06-20 20:04:55,055 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 35 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 20:04:55,055 INFO L140 encePairwiseOnDemand]: 21/26 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2024-06-20 20:04:55,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 19 transitions, 87 flow [2024-06-20 20:04:55,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-20 20:04:55,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-20 20:04:55,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 47 transitions. [2024-06-20 20:04:55,057 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4519230769230769 [2024-06-20 20:04:55,057 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 61 flow. Second operand 4 states and 47 transitions. [2024-06-20 20:04:55,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 19 transitions, 87 flow [2024-06-20 20:04:55,057 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 20:04:55,058 INFO L231 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2024-06-20 20:04:55,058 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, 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 20:04:55,058 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 1 predicate places. [2024-06-20 20:04:55,059 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 0 transitions, 0 flow [2024-06-20 20:04:55,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 20:04:55,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-06-20 20:04:55,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-06-20 20:04:55,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-20 20:04:55,062 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-06-20 20:04:55,064 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-20 20:04:55,064 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-20 20:04:55,067 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-20 20:04:55,067 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-20 20:04:55,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.06 08:04:55 BasicIcfg [2024-06-20 20:04:55,068 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-20 20:04:55,068 INFO L158 Benchmark]: Toolchain (without parser) took 2124.94ms. Allocated memory is still 178.3MB. Free memory was 102.1MB in the beginning and 140.2MB in the end (delta: -38.1MB). Peak memory consumption was 46.2MB. Max. memory is 16.1GB. [2024-06-20 20:04:55,069 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 125.8MB. Free memory is still 90.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 20:04:55,069 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 178.3MB. Free memory is still 150.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 20:04:55,069 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.42ms. Allocated memory is still 178.3MB. Free memory was 102.1MB in the beginning and 131.3MB in the end (delta: -29.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-06-20 20:04:55,070 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.78ms. Allocated memory is still 178.3MB. Free memory was 131.3MB in the beginning and 129.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 20:04:55,070 INFO L158 Benchmark]: Boogie Preprocessor took 54.52ms. Allocated memory is still 178.3MB. Free memory was 129.2MB in the beginning and 127.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 20:04:55,070 INFO L158 Benchmark]: RCFGBuilder took 614.82ms. Allocated memory is still 178.3MB. Free memory was 127.1MB in the beginning and 99.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-06-20 20:04:55,071 INFO L158 Benchmark]: TraceAbstraction took 910.33ms. Allocated memory is still 178.3MB. Free memory was 99.2MB in the beginning and 140.2MB in the end (delta: -41.1MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. [2024-06-20 20:04:55,072 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 0.17ms. Allocated memory is still 125.8MB. Free memory is still 90.1MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 178.3MB. Free memory is still 150.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 491.42ms. Allocated memory is still 178.3MB. Free memory was 102.1MB in the beginning and 131.3MB in the end (delta: -29.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.78ms. Allocated memory is still 178.3MB. Free memory was 131.3MB in the beginning and 129.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 54.52ms. Allocated memory is still 178.3MB. Free memory was 129.2MB in the beginning and 127.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 614.82ms. Allocated memory is still 178.3MB. Free memory was 127.1MB in the beginning and 99.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 910.33ms. Allocated memory is still 178.3MB. Free memory was 99.2MB in the beginning and 140.2MB in the end (delta: -41.1MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 698]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 42 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: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 96 IncrementalHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 2 mSDtfsCounter, 96 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, 0.4s 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 20:04:55,107 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