./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.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_pos.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_pos.i ./goblint.2024-05-21_14-57-05.files/mutex-meet/13-privatized_19-publish-precision_unknown_2_pos.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 20:04:51,790 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-20 20:04:51,859 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-20 20:04:51,872 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-20 20:04:51,873 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-20 20:04:51,898 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-20 20:04:51,899 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-20 20:04:51,899 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-20 20:04:51,899 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-20 20:04:51,900 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-20 20:04:51,900 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-20 20:04:51,900 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-20 20:04:51,901 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-20 20:04:51,901 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-20 20:04:51,901 INFO L153 SettingsManager]: * Use SBE=true [2024-06-20 20:04:51,902 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-20 20:04:51,902 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-20 20:04:51,902 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-20 20:04:51,903 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-20 20:04:51,903 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-20 20:04:51,903 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-20 20:04:51,908 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-20 20:04:51,908 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-20 20:04:51,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-20 20:04:51,909 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-20 20:04:51,909 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-20 20:04:51,909 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-20 20:04:51,909 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-20 20:04:51,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-20 20:04:51,910 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-20 20:04:51,911 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-20 20:04:51,911 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-20 20:04:51,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 20:04:51,912 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-20 20:04:51,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-20 20:04:51,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-20 20:04:51,913 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-20 20:04:51,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-20 20:04:51,913 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-20 20:04:51,913 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-20 20:04:51,913 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-20 20:04:51,914 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-20 20:04:51,914 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-20 20:04:51,914 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-20 20:04:52,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-20 20:04:52,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-20 20:04:52,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-20 20:04:52,167 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-20 20:04:52,168 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-20 20:04:52,169 INFO L431 ainManager$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_pos.yml/witness.yml [2024-06-20 20:04:52,282 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-20 20:04:52,290 INFO L274 PluginConnector]: CDTParser initialized [2024-06-20 20:04:52,292 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2024-06-20 20:04:53,533 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-20 20:04:53,772 INFO L384 CDTParser]: Found 1 translation units. [2024-06-20 20:04:53,772 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2024-06-20 20:04:53,787 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4c9080e4/8fba6f7a097b4e56b034497438081ced/FLAG20523fedf [2024-06-20 20:04:53,799 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4c9080e4/8fba6f7a097b4e56b034497438081ced [2024-06-20 20:04:53,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-20 20:04:53,801 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-20 20:04:53,802 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-20 20:04:53,803 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-20 20:04:53,807 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-20 20:04:53,808 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 08:04:52" (1/2) ... [2024-06-20 20:04:53,811 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@699ca034 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 08:04:53, skipping insertion in model container [2024-06-20 20:04:53,811 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 08:04:52" (1/2) ... [2024-06-20 20:04:53,814 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4254cef7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 08:04:53, skipping insertion in model container [2024-06-20 20:04:53,814 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 08:04:53" (2/2) ... [2024-06-20 20:04:53,814 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@699ca034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:53, skipping insertion in model container [2024-06-20 20:04:53,815 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 08:04:53" (2/2) ... [2024-06-20 20:04:53,816 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-20 20:04:53,847 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-20 20:04:53,849 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 20:04:53,849 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-20 20:04:53,849 INFO L103 edCorrectnessWitness]: ghost_variable mutex2_locked = 0 [2024-06-20 20:04:53,850 INFO L103 edCorrectnessWitness]: ghost_variable mutex1_locked = 0 [2024-06-20 20:04:53,850 INFO L106 edCorrectnessWitness]: ghost_update [L688-L688] mutex2_locked = 0; [2024-06-20 20:04:53,850 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] mutex2_locked = 1; [2024-06-20 20:04:53,850 INFO L106 edCorrectnessWitness]: ghost_update [L685-L685] mutex1_locked = 1; [2024-06-20 20:04:53,850 INFO L106 edCorrectnessWitness]: ghost_update [L692-L692] mutex1_locked = 0; [2024-06-20 20:04:53,850 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] mutex2_locked = 1; [2024-06-20 20:04:53,851 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] multithreaded = 1; [2024-06-20 20:04:53,851 INFO L106 edCorrectnessWitness]: ghost_update [L691-L691] mutex2_locked = 0; [2024-06-20 20:04:53,851 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] mutex2_locked = 1; [2024-06-20 20:04:53,851 INFO L106 edCorrectnessWitness]: ghost_update [L700-L700] mutex2_locked = 0; [2024-06-20 20:04:53,899 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-20 20:04:54,251 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 20:04:54,267 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 20:04:54,378 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 20:04:54,420 INFO L206 MainTranslator]: Completed translation [2024-06-20 20:04:54,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:54 WrapperNode [2024-06-20 20:04:54,421 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-20 20:04:54,422 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-20 20:04:54,423 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-20 20:04:54,423 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-20 20:04:54,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:54" (1/1) ... [2024-06-20 20:04:54,459 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:54" (1/1) ... [2024-06-20 20:04:54,488 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2024-06-20 20:04:54,489 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-20 20:04:54,490 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-20 20:04:54,490 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-20 20:04:54,490 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-20 20:04:54,500 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:54" (1/1) ... [2024-06-20 20:04:54,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:54" (1/1) ... [2024-06-20 20:04:54,510 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:54" (1/1) ... [2024-06-20 20:04:54,531 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 20:04:54,532 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:54" (1/1) ... [2024-06-20 20:04:54,532 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:54" (1/1) ... [2024-06-20 20:04:54,548 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:54" (1/1) ... [2024-06-20 20:04:54,550 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:54" (1/1) ... [2024-06-20 20:04:54,554 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:54" (1/1) ... [2024-06-20 20:04:54,556 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:54" (1/1) ... [2024-06-20 20:04:54,558 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-20 20:04:54,563 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-20 20:04:54,563 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-20 20:04:54,564 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-20 20:04:54,569 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:54" (1/1) ... [2024-06-20 20:04:54,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 20:04:54,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-20 20:04:54,607 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 20:04:54,618 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 20:04:54,648 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-20 20:04:54,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-20 20:04:54,649 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-20 20:04:54,649 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-20 20:04:54,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-20 20:04:54,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-20 20:04:54,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-20 20:04:54,650 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-20 20:04:54,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-20 20:04:54,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-20 20:04:54,652 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 20:04:54,783 INFO L244 CfgBuilder]: Building ICFG [2024-06-20 20:04:54,785 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-20 20:04:54,983 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-20 20:04:54,983 INFO L293 CfgBuilder]: Performing block encoding [2024-06-20 20:04:55,129 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-20 20:04:55,130 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-20 20:04:55,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 08:04:55 BoogieIcfgContainer [2024-06-20 20:04:55,130 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-20 20:04:55,132 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-20 20:04:55,132 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-20 20:04:55,136 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-20 20:04:55,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 08:04:52" (1/4) ... [2024-06-20 20:04:55,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2195db29 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.06 08:04:55, skipping insertion in model container [2024-06-20 20:04:55,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.06 08:04:53" (2/4) ... [2024-06-20 20:04:55,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2195db29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 08:04:55, skipping insertion in model container [2024-06-20 20:04:55,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 08:04:54" (3/4) ... [2024-06-20 20:04:55,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2195db29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 08:04:55, skipping insertion in model container [2024-06-20 20:04:55,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 08:04:55" (4/4) ... [2024-06-20 20:04:55,139 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_pos.i [2024-06-20 20:04:55,155 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-20 20:04:55,156 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-06-20 20:04:55,156 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-20 20:04:55,195 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-06-20 20:04:55,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 26 transitions, 59 flow [2024-06-20 20:04:55,265 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-06-20 20:04:55,266 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-20 20:04:55,268 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 20:04:55,268 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 26 transitions, 59 flow [2024-06-20 20:04:55,271 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 22 places, 18 transitions, 39 flow [2024-06-20 20:04:55,288 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-20 20:04:55,294 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;@52eeb3dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-20 20:04:55,295 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-06-20 20:04:55,298 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-20 20:04:55,301 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-20 20:04:55,301 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-20 20:04:55,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 20:04:55,303 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-20 20:04:55,303 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-20 20:04:55,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 20:04:55,309 INFO L85 PathProgramCache]: Analyzing trace with hash 208384109, now seen corresponding path program 1 times [2024-06-20 20:04:55,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 20:04:55,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904643536] [2024-06-20 20:04:55,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 20:04:55,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 20:04:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 20:04:55,719 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 20:04:55,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 20:04:55,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904643536] [2024-06-20 20:04:55,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904643536] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 20:04:55,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 20:04:55,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-20 20:04:55,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862192116] [2024-06-20 20:04:55,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 20:04:55,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-20 20:04:55,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 20:04:55,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-20 20:04:55,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-20 20:04:55,766 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 26 [2024-06-20 20:04:55,768 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 20:04:55,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 20:04:55,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 26 [2024-06-20 20:04:55,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 20:04:55,803 INFO L124 PetriNetUnfolderBase]: 11/47 cut-off events. [2024-06-20 20:04:55,803 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-20 20:04:55,804 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 20:04:55,806 INFO L140 encePairwiseOnDemand]: 22/26 looper letters, 11 selfloop transitions, 3 changer transitions 0/19 dead transitions. [2024-06-20 20:04:55,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 69 flow [2024-06-20 20:04:55,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-20 20:04:55,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-20 20:04:55,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 39 transitions. [2024-06-20 20:04:55,816 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-06-20 20:04:55,818 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 39 flow. Second operand 3 states and 39 transitions. [2024-06-20 20:04:55,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 69 flow [2024-06-20 20:04:55,820 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 20:04:55,822 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 49 flow [2024-06-20 20:04:55,824 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 20:04:55,827 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2024-06-20 20:04:55,827 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 49 flow [2024-06-20 20:04:55,827 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 20:04:55,827 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 20:04:55,827 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 20:04:55,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-20 20:04:55,828 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-20 20:04:55,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 20:04:55,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1926225186, now seen corresponding path program 1 times [2024-06-20 20:04:55,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 20:04:55,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967099518] [2024-06-20 20:04:55,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 20:04:55,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 20:04:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 20:04:56,156 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 20:04:56,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 20:04:56,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967099518] [2024-06-20 20:04:56,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967099518] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 20:04:56,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 20:04:56,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-20 20:04:56,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43281625] [2024-06-20 20:04:56,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 20:04:56,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-20 20:04:56,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 20:04:56,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-20 20:04:56,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-20 20:04:56,183 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 26 [2024-06-20 20:04:56,183 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 20:04:56,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 20:04:56,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 26 [2024-06-20 20:04:56,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 20:04:56,240 INFO L124 PetriNetUnfolderBase]: 10/46 cut-off events. [2024-06-20 20:04:56,241 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-06-20 20:04:56,241 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 20:04:56,241 INFO L140 encePairwiseOnDemand]: 18/26 looper letters, 10 selfloop transitions, 7 changer transitions 0/22 dead transitions. [2024-06-20 20:04:56,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 22 transitions, 93 flow [2024-06-20 20:04:56,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-20 20:04:56,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-20 20:04:56,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 58 transitions. [2024-06-20 20:04:56,245 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4461538461538462 [2024-06-20 20:04:56,245 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 49 flow. Second operand 5 states and 58 transitions. [2024-06-20 20:04:56,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 22 transitions, 93 flow [2024-06-20 20:04:56,246 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 20:04:56,248 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 61 flow [2024-06-20 20:04:56,250 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 20:04:56,251 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 5 predicate places. [2024-06-20 20:04:56,252 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 61 flow [2024-06-20 20:04:56,252 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 20:04:56,252 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 20:04:56,252 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 20:04:56,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-20 20:04:56,253 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-20 20:04:56,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 20:04:56,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1646759114, now seen corresponding path program 1 times [2024-06-20 20:04:56,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 20:04:56,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288160877] [2024-06-20 20:04:56,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 20:04:56,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 20:04:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 20:04:56,393 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 20:04:56,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 20:04:56,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288160877] [2024-06-20 20:04:56,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288160877] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 20:04:56,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 20:04:56,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-20 20:04:56,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986695596] [2024-06-20 20:04:56,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 20:04:56,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-20 20:04:56,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 20:04:56,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-20 20:04:56,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-20 20:04:56,406 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 26 [2024-06-20 20:04:56,407 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 20:04:56,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 20:04:56,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 26 [2024-06-20 20:04:56,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 20:04:56,436 INFO L124 PetriNetUnfolderBase]: 9/38 cut-off events. [2024-06-20 20:04:56,437 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-06-20 20:04:56,437 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 20:04:56,438 INFO L140 encePairwiseOnDemand]: 21/26 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2024-06-20 20:04:56,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 19 transitions, 87 flow [2024-06-20 20:04:56,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-20 20:04:56,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-20 20:04:56,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 47 transitions. [2024-06-20 20:04:56,439 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4519230769230769 [2024-06-20 20:04:56,439 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 61 flow. Second operand 4 states and 47 transitions. [2024-06-20 20:04:56,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 19 transitions, 87 flow [2024-06-20 20:04:56,440 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 20:04:56,441 INFO L231 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2024-06-20 20:04:56,441 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 20:04:56,442 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 1 predicate places. [2024-06-20 20:04:56,442 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 0 transitions, 0 flow [2024-06-20 20:04:56,442 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 20:04:56,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-06-20 20:04:56,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-06-20 20:04:56,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-20 20:04:56,445 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-06-20 20:04:56,448 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-20 20:04:56,448 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-20 20:04:56,452 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-20 20:04:56,452 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-20 20:04:56,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.06 08:04:56 BasicIcfg [2024-06-20 20:04:56,453 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-20 20:04:56,454 INFO L158 Benchmark]: Toolchain (without parser) took 2652.48ms. Allocated memory is still 148.9MB. Free memory was 89.0MB in the beginning and 69.4MB in the end (delta: 19.6MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2024-06-20 20:04:56,454 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 107.0MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 20:04:56,454 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 107.0MB. Free memory is still 69.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 20:04:56,455 INFO L158 Benchmark]: CACSL2BoogieTranslator took 618.75ms. Allocated memory is still 148.9MB. Free memory was 89.0MB in the beginning and 63.3MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-06-20 20:04:56,455 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.44ms. Allocated memory is still 148.9MB. Free memory was 63.3MB in the beginning and 61.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-20 20:04:56,455 INFO L158 Benchmark]: Boogie Preprocessor took 72.62ms. Allocated memory is still 148.9MB. Free memory was 61.2MB in the beginning and 59.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-20 20:04:56,456 INFO L158 Benchmark]: RCFGBuilder took 567.31ms. Allocated memory is still 148.9MB. Free memory was 59.1MB in the beginning and 105.5MB in the end (delta: -46.4MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2024-06-20 20:04:56,456 INFO L158 Benchmark]: TraceAbstraction took 1321.01ms. Allocated memory is still 148.9MB. Free memory was 104.9MB in the beginning and 69.4MB in the end (delta: 35.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-06-20 20:04:56,458 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 0.18ms. Allocated memory is still 107.0MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.22ms. Allocated memory is still 107.0MB. Free memory is still 69.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 618.75ms. Allocated memory is still 148.9MB. Free memory was 89.0MB in the beginning and 63.3MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.44ms. Allocated memory is still 148.9MB. Free memory was 63.3MB in the beginning and 61.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.62ms. Allocated memory is still 148.9MB. Free memory was 61.2MB in the beginning and 59.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 567.31ms. Allocated memory is still 148.9MB. Free memory was 59.1MB in the beginning and 105.5MB in the end (delta: -46.4MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1321.01ms. Allocated memory is still 148.9MB. Free memory was 104.9MB in the beginning and 69.4MB in the end (delta: 35.5MB). Peak memory consumption was 37.7MB. 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: 1.2s, 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, 0.7s 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 20:04:56,496 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