./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_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_41-traces-ex-7_unknown_1_neg.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version bcb38a6f 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_41-traces-ex-7_unknown_1_neg.i ./goblint.2024-05-21_14-57-05.files/mutex-meet/13-privatized_41-traces-ex-7_unknown_1_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-bcb38a6-m [2024-06-03 22:51:27,171 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-03 22:51:27,253 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-03 22:51:27,262 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-03 22:51:27,262 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-03 22:51:27,294 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-03 22:51:27,295 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-03 22:51:27,295 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-03 22:51:27,296 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-03 22:51:27,299 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-03 22:51:27,299 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-03 22:51:27,299 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-03 22:51:27,299 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-03 22:51:27,300 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-03 22:51:27,301 INFO L153 SettingsManager]: * Use SBE=true [2024-06-03 22:51:27,301 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-03 22:51:27,301 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-03 22:51:27,301 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-03 22:51:27,301 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-03 22:51:27,302 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-03 22:51:27,302 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-03 22:51:27,302 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-03 22:51:27,302 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-03 22:51:27,303 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-03 22:51:27,303 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-03 22:51:27,303 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-03 22:51:27,303 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-03 22:51:27,303 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-03 22:51:27,304 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-03 22:51:27,304 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-03 22:51:27,304 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-03 22:51:27,304 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-03 22:51:27,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 22:51:27,305 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-03 22:51:27,305 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-03 22:51:27,305 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-03 22:51:27,305 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-03 22:51:27,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-03 22:51:27,306 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-03 22:51:27,306 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-03 22:51:27,306 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-03 22:51:27,306 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-03 22:51:27,307 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-03 22:51:27,307 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-03 22:51:27,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-03 22:51:27,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-03 22:51:27,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-03 22:51:27,528 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-03 22:51:27,529 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-03 22:51:27,530 INFO L431 ainManager$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_41-traces-ex-7_unknown_1_neg.yml/witness.yml [2024-06-03 22:51:27,689 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-03 22:51:27,690 INFO L274 PluginConnector]: CDTParser initialized [2024-06-03 22:51:27,691 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2024-06-03 22:51:28,910 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-03 22:51:29,111 INFO L384 CDTParser]: Found 1 translation units. [2024-06-03 22:51:29,118 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2024-06-03 22:51:29,133 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d89befa09/e0ebc9d8d6bf4f6db71fb8cc7b54dc2f/FLAGb5508da80 [2024-06-03 22:51:29,147 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d89befa09/e0ebc9d8d6bf4f6db71fb8cc7b54dc2f [2024-06-03 22:51:29,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-03 22:51:29,149 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-03 22:51:29,151 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-03 22:51:29,152 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-03 22:51:29,155 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-03 22:51:29,156 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 10:51:27" (1/2) ... [2024-06-03 22:51:29,157 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@754f0f56 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 10:51:29, skipping insertion in model container [2024-06-03 22:51:29,157 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 10:51:27" (1/2) ... [2024-06-03 22:51:29,159 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2ec1c315 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 10:51:29, skipping insertion in model container [2024-06-03 22:51:29,160 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 10:51:29" (2/2) ... [2024-06-03 22:51:29,161 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@754f0f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:29, skipping insertion in model container [2024-06-03 22:51:29,161 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 10:51:29" (2/2) ... [2024-06-03 22:51:29,161 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-03 22:51:29,193 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-03 22:51:29,195 INFO L97 edCorrectnessWitness]: Location invariant before [L695-L695] ((! multithreaded || ((((0 <= g && g <= 17) && g <= 127) && g % 17 == 0) && (g == 0 || g == 17))) && (! multithreaded || (D_locked || ((((0 <= g && g <= 17) && g <= 127) && g % 17 == 0) && (g == 0 || g == 17))))) && (! multithreaded || (A_locked || ((((0 <= g && g <= 17) && g <= 127) && g % 17 == 0) && (g == 0 || g == 17)))) [2024-06-03 22:51:29,195 INFO L103 edCorrectnessWitness]: ghost_variable D_locked = 0 [2024-06-03 22:51:29,195 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-03 22:51:29,195 INFO L103 edCorrectnessWitness]: ghost_variable A_locked = 0 [2024-06-03 22:51:29,195 INFO L106 edCorrectnessWitness]: ghost_update [L696-L696] A_locked = 1; [2024-06-03 22:51:29,195 INFO L106 edCorrectnessWitness]: ghost_update [L694-L694] multithreaded = 1; [2024-06-03 22:51:29,195 INFO L106 edCorrectnessWitness]: ghost_update [L688-L688] A_locked = 0; [2024-06-03 22:51:29,196 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] D_locked = 0; [2024-06-03 22:51:29,196 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] A_locked = 1; [2024-06-03 22:51:29,196 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] D_locked = 0; [2024-06-03 22:51:29,196 INFO L106 edCorrectnessWitness]: ghost_update [L685-L685] D_locked = 1; [2024-06-03 22:51:29,196 INFO L106 edCorrectnessWitness]: ghost_update [L695-L695] D_locked = 1; [2024-06-03 22:51:29,234 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-03 22:51:29,520 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 22:51:29,567 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-03 22:51:29,641 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 22:51:29,678 INFO L206 MainTranslator]: Completed translation [2024-06-03 22:51:29,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:29 WrapperNode [2024-06-03 22:51:29,679 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-03 22:51:29,680 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-03 22:51:29,680 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-03 22:51:29,680 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-03 22:51:29,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:29" (1/1) ... [2024-06-03 22:51:29,714 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:29" (1/1) ... [2024-06-03 22:51:29,732 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2024-06-03 22:51:29,732 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-03 22:51:29,733 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-03 22:51:29,733 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-03 22:51:29,733 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-03 22:51:29,740 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:29" (1/1) ... [2024-06-03 22:51:29,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:29" (1/1) ... [2024-06-03 22:51:29,742 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:29" (1/1) ... [2024-06-03 22:51:29,751 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]. [2024-06-03 22:51:29,752 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:29" (1/1) ... [2024-06-03 22:51:29,752 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:29" (1/1) ... [2024-06-03 22:51:29,755 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:29" (1/1) ... [2024-06-03 22:51:29,756 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:29" (1/1) ... [2024-06-03 22:51:29,757 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:29" (1/1) ... [2024-06-03 22:51:29,758 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:29" (1/1) ... [2024-06-03 22:51:29,759 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-03 22:51:29,760 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-03 22:51:29,760 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-03 22:51:29,760 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-03 22:51:29,761 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:29" (1/1) ... [2024-06-03 22:51:29,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 22:51:29,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-03 22:51:29,783 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) [2024-06-03 22:51:29,816 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 [2024-06-03 22:51:29,830 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-03 22:51:29,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-03 22:51:29,830 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-03 22:51:29,830 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-03 22:51:29,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-03 22:51:29,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-03 22:51:29,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-03 22:51:29,831 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-03 22:51:29,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-03 22:51:29,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-03 22:51:29,832 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-03 22:51:29,953 INFO L244 CfgBuilder]: Building ICFG [2024-06-03 22:51:29,954 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-03 22:51:30,098 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-03 22:51:30,098 INFO L293 CfgBuilder]: Performing block encoding [2024-06-03 22:51:30,218 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-03 22:51:30,218 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-03 22:51:30,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 10:51:30 BoogieIcfgContainer [2024-06-03 22:51:30,219 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-03 22:51:30,220 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-03 22:51:30,220 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-03 22:51:30,222 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-03 22:51:30,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 10:51:27" (1/4) ... [2024-06-03 22:51:30,224 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a4dd62 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 03.06 10:51:30, skipping insertion in model container [2024-06-03 22:51:30,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.06 10:51:29" (2/4) ... [2024-06-03 22:51:30,224 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a4dd62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.06 10:51:30, skipping insertion in model container [2024-06-03 22:51:30,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:29" (3/4) ... [2024-06-03 22:51:30,226 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a4dd62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.06 10:51:30, skipping insertion in model container [2024-06-03 22:51:30,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 10:51:30" (4/4) ... [2024-06-03 22:51:30,227 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.i [2024-06-03 22:51:30,240 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-03 22:51:30,240 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-06-03 22:51:30,240 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-03 22:51:30,260 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-03 22:51:30,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 23 transitions, 50 flow [2024-06-03 22:51:30,312 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2024-06-03 22:51:30,313 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 22:51:30,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-06-03 22:51:30,314 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 23 transitions, 50 flow [2024-06-03 22:51:30,317 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 19 places, 15 transitions, 33 flow [2024-06-03 22:51:30,329 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-03 22:51:30,337 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;@5efe70a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-03 22:51:30,338 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-06-03 22:51:30,348 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-03 22:51:30,348 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-06-03 22:51:30,348 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 22:51:30,348 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:51:30,350 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-03 22:51:30,350 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-03 22:51:30,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:51:30,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1730034524, now seen corresponding path program 1 times [2024-06-03 22:51:30,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:51:30,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718501130] [2024-06-03 22:51:30,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:51:30,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:51:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:51:30,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:51:30,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:51:30,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718501130] [2024-06-03 22:51:30,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718501130] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:51:30,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:51:30,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-03 22:51:30,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436078189] [2024-06-03 22:51:30,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:51:31,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-03 22:51:31,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:51:31,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-03 22:51:31,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-03 22:51:31,044 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 23 [2024-06-03 22:51:31,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 15 transitions, 33 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2024-06-03 22:51:31,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:51:31,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 23 [2024-06-03 22:51:31,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:51:31,086 INFO L124 PetriNetUnfolderBase]: 9/34 cut-off events. [2024-06-03 22:51:31,087 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 22:51:31,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 34 events. 9/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 5 based on Foata normal form. 3/35 useless extension candidates. Maximal degree in co-relation 56. Up to 20 conditions per place. [2024-06-03 22:51:31,089 INFO L140 encePairwiseOnDemand]: 20/23 looper letters, 11 selfloop transitions, 2 changer transitions 0/16 dead transitions. [2024-06-03 22:51:31,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 16 transitions, 61 flow [2024-06-03 22:51:31,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-03 22:51:31,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-03 22:51:31,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2024-06-03 22:51:31,098 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5072463768115942 [2024-06-03 22:51:31,100 INFO L175 Difference]: Start difference. First operand has 19 places, 15 transitions, 33 flow. Second operand 3 states and 35 transitions. [2024-06-03 22:51:31,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 16 transitions, 61 flow [2024-06-03 22:51:31,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 16 transitions, 60 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-03 22:51:31,103 INFO L231 Difference]: Finished difference. Result has 21 places, 15 transitions, 40 flow [2024-06-03 22:51:31,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=21, PETRI_TRANSITIONS=15} [2024-06-03 22:51:31,108 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 2 predicate places. [2024-06-03 22:51:31,108 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 15 transitions, 40 flow [2024-06-03 22:51:31,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2024-06-03 22:51:31,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:51:31,108 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:51:31,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-03 22:51:31,109 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-03 22:51:31,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:51:31,110 INFO L85 PathProgramCache]: Analyzing trace with hash 104780761, now seen corresponding path program 1 times [2024-06-03 22:51:31,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:51:31,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820529845] [2024-06-03 22:51:31,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:51:31,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:51:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:51:31,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:51:31,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:51:31,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820529845] [2024-06-03 22:51:31,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820529845] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:51:31,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:51:31,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-03 22:51:31,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555917774] [2024-06-03 22:51:31,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:51:31,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-03 22:51:31,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:51:31,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-03 22:51:31,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-03 22:51:31,320 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 23 [2024-06-03 22:51:31,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 15 transitions, 40 flow. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2024-06-03 22:51:31,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:51:31,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 23 [2024-06-03 22:51:31,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:51:31,372 INFO L124 PetriNetUnfolderBase]: 8/33 cut-off events. [2024-06-03 22:51:31,372 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-03 22:51:31,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 33 events. 8/33 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 2 based on Foata normal form. 1/34 useless extension candidates. Maximal degree in co-relation 60. Up to 16 conditions per place. [2024-06-03 22:51:31,374 INFO L140 encePairwiseOnDemand]: 17/23 looper letters, 11 selfloop transitions, 5 changer transitions 0/19 dead transitions. [2024-06-03 22:51:31,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 19 transitions, 82 flow [2024-06-03 22:51:31,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-03 22:51:31,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-03 22:51:31,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 52 transitions. [2024-06-03 22:51:31,376 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45217391304347826 [2024-06-03 22:51:31,377 INFO L175 Difference]: Start difference. First operand has 21 places, 15 transitions, 40 flow. Second operand 5 states and 52 transitions. [2024-06-03 22:51:31,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 19 transitions, 82 flow [2024-06-03 22:51:31,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 19 transitions, 78 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-03 22:51:31,379 INFO L231 Difference]: Finished difference. Result has 24 places, 15 transitions, 50 flow [2024-06-03 22:51:31,380 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=50, PETRI_PLACES=24, PETRI_TRANSITIONS=15} [2024-06-03 22:51:31,382 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 5 predicate places. [2024-06-03 22:51:31,382 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 15 transitions, 50 flow [2024-06-03 22:51:31,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2024-06-03 22:51:31,383 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:51:31,383 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:51:31,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-03 22:51:31,388 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-03 22:51:31,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:51:31,391 INFO L85 PathProgramCache]: Analyzing trace with hash 464488665, now seen corresponding path program 1 times [2024-06-03 22:51:31,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:51:31,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992204356] [2024-06-03 22:51:31,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:51:31,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:51:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:51:31,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:51:31,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:51:31,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992204356] [2024-06-03 22:51:31,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992204356] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:51:31,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:51:31,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-03 22:51:31,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734422363] [2024-06-03 22:51:31,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:51:31,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-03 22:51:31,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:51:31,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-03 22:51:31,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-03 22:51:31,564 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 23 [2024-06-03 22:51:31,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 15 transitions, 50 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-06-03 22:51:31,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:51:31,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 23 [2024-06-03 22:51:31,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:51:31,614 INFO L124 PetriNetUnfolderBase]: 7/31 cut-off events. [2024-06-03 22:51:31,615 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-06-03 22:51:31,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 31 events. 7/31 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 3 based on Foata normal form. 1/32 useless extension candidates. Maximal degree in co-relation 67. Up to 13 conditions per place. [2024-06-03 22:51:31,615 INFO L140 encePairwiseOnDemand]: 17/23 looper letters, 9 selfloop transitions, 5 changer transitions 0/17 dead transitions. [2024-06-03 22:51:31,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 17 transitions, 82 flow [2024-06-03 22:51:31,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-03 22:51:31,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-03 22:51:31,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 57 transitions. [2024-06-03 22:51:31,619 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41304347826086957 [2024-06-03 22:51:31,619 INFO L175 Difference]: Start difference. First operand has 24 places, 15 transitions, 50 flow. Second operand 6 states and 57 transitions. [2024-06-03 22:51:31,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 17 transitions, 82 flow [2024-06-03 22:51:31,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 17 transitions, 72 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-03 22:51:31,621 INFO L231 Difference]: Finished difference. Result has 26 places, 15 transitions, 54 flow [2024-06-03 22:51:31,621 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=54, PETRI_PLACES=26, PETRI_TRANSITIONS=15} [2024-06-03 22:51:31,623 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 7 predicate places. [2024-06-03 22:51:31,623 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 15 transitions, 54 flow [2024-06-03 22:51:31,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2024-06-03 22:51:31,624 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:51:31,624 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:51:31,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-03 22:51:31,625 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-03 22:51:31,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:51:31,625 INFO L85 PathProgramCache]: Analyzing trace with hash -629605920, now seen corresponding path program 1 times [2024-06-03 22:51:31,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:51:31,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808053656] [2024-06-03 22:51:31,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:51:31,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:51:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:51:31,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:51:31,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:51:31,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808053656] [2024-06-03 22:51:31,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808053656] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:51:31,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:51:31,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-03 22:51:31,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939557116] [2024-06-03 22:51:31,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:51:31,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-03 22:51:31,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:51:31,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-03 22:51:31,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-03 22:51:31,829 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 23 [2024-06-03 22:51:31,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 15 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-06-03 22:51:31,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:51:31,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 23 [2024-06-03 22:51:31,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:51:31,852 INFO L124 PetriNetUnfolderBase]: 6/27 cut-off events. [2024-06-03 22:51:31,853 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-06-03 22:51:31,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 27 events. 6/27 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 23 event pairs, 2 based on Foata normal form. 2/28 useless extension candidates. Maximal degree in co-relation 54. Up to 12 conditions per place. [2024-06-03 22:51:31,853 INFO L140 encePairwiseOnDemand]: 21/23 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2024-06-03 22:51:31,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 15 transitions, 72 flow [2024-06-03 22:51:31,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-03 22:51:31,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-03 22:51:31,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 34 transitions. [2024-06-03 22:51:31,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4927536231884058 [2024-06-03 22:51:31,856 INFO L175 Difference]: Start difference. First operand has 26 places, 15 transitions, 54 flow. Second operand 3 states and 34 transitions. [2024-06-03 22:51:31,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 15 transitions, 72 flow [2024-06-03 22:51:31,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 15 transitions, 56 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-06-03 22:51:31,858 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2024-06-03 22:51:31,858 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2024-06-03 22:51:31,860 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 0 predicate places. [2024-06-03 22:51:31,860 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2024-06-03 22:51:31,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-06-03 22:51:31,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-06-03 22:51:31,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-06-03 22:51:31,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-03 22:51:31,863 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-06-03 22:51:31,866 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-03 22:51:31,866 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-03 22:51:31,871 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-03 22:51:31,872 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-03 22:51:31,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.06 10:51:31 BasicIcfg [2024-06-03 22:51:31,872 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-03 22:51:31,875 INFO L158 Benchmark]: Toolchain (without parser) took 2723.63ms. Allocated memory is still 209.7MB. Free memory was 134.0MB in the beginning and 162.6MB in the end (delta: -28.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 22:51:31,875 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 123.7MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 22:51:31,875 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 209.7MB. Free memory is still 182.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 22:51:31,875 INFO L158 Benchmark]: CACSL2BoogieTranslator took 527.53ms. Allocated memory is still 209.7MB. Free memory was 133.7MB in the beginning and 170.1MB in the end (delta: -36.3MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2024-06-03 22:51:31,876 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.91ms. Allocated memory is still 209.7MB. Free memory was 170.1MB in the beginning and 168.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-03 22:51:31,876 INFO L158 Benchmark]: Boogie Preprocessor took 26.46ms. Allocated memory is still 209.7MB. Free memory was 168.0MB in the beginning and 165.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-03 22:51:31,876 INFO L158 Benchmark]: RCFGBuilder took 458.77ms. Allocated memory is still 209.7MB. Free memory was 165.9MB in the beginning and 138.6MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-06-03 22:51:31,880 INFO L158 Benchmark]: TraceAbstraction took 1652.64ms. Allocated memory is still 209.7MB. Free memory was 137.6MB in the beginning and 162.6MB in the end (delta: -25.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 22:51:31,881 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 0.16ms. Allocated memory is still 123.7MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 209.7MB. Free memory is still 182.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 527.53ms. Allocated memory is still 209.7MB. Free memory was 133.7MB in the beginning and 170.1MB in the end (delta: -36.3MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.91ms. Allocated memory is still 209.7MB. Free memory was 170.1MB in the beginning and 168.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.46ms. Allocated memory is still 209.7MB. Free memory was 168.0MB in the beginning and 165.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 458.77ms. Allocated memory is still 209.7MB. Free memory was 165.9MB in the beginning and 138.6MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1652.64ms. Allocated memory is still 209.7MB. Free memory was 137.6MB in the beginning and 162.6MB in the end (delta: -25.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 695]: 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, 35 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: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 136 IncrementalHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2 mSDtfsCounter, 136 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=3, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 112 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-03 22:51:31,903 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE