./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-05-07_14-17-48.files/mutex-meet/race-1_1-join.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b44c8288 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/ldv-races/race-1_1-join.i ./goblint.2024-05-07_14-17-48.files/mutex-meet/race-1_1-join.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 --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-b44c828-m [2024-05-12 10:47:16,188 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-12 10:47:16,266 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-05-12 10:47:16,272 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-12 10:47:16,272 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-12 10:47:16,299 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-12 10:47:16,300 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-12 10:47:16,300 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-12 10:47:16,301 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-05-12 10:47:16,304 INFO L153 SettingsManager]: * Use memory slicer=true [2024-05-12 10:47:16,305 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-12 10:47:16,305 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-12 10:47:16,306 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-12 10:47:16,307 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-12 10:47:16,307 INFO L153 SettingsManager]: * Use SBE=true [2024-05-12 10:47:16,308 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-12 10:47:16,308 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-12 10:47:16,308 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-12 10:47:16,309 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-12 10:47:16,309 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-12 10:47:16,309 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-12 10:47:16,310 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-12 10:47:16,310 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-12 10:47:16,310 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-12 10:47:16,310 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-05-12 10:47:16,311 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-12 10:47:16,311 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-12 10:47:16,311 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-12 10:47:16,312 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-12 10:47:16,312 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-12 10:47:16,313 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-05-12 10:47:16,313 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-12 10:47:16,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 10:47:16,314 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-12 10:47:16,314 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-12 10:47:16,314 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-05-12 10:47:16,315 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-12 10:47:16,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-12 10:47:16,315 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-12 10:47:16,315 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-05-12 10:47:16,315 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-12 10:47:16,316 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-05-12 10:47:16,316 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-05-12 10:47:16,316 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-05-12 10:47:16,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-12 10:47:16,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-12 10:47:16,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-12 10:47:16,601 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-05-12 10:47:16,601 INFO L274 PluginConnector]: Witness Parser initialized [2024-05-12 10:47:16,602 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-07_14-17-48.files/mutex-meet/race-1_1-join.yml/witness.yml [2024-05-12 10:47:16,730 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-12 10:47:16,730 INFO L274 PluginConnector]: CDTParser initialized [2024-05-12 10:47:16,732 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i [2024-05-12 10:47:17,824 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-12 10:47:18,170 INFO L384 CDTParser]: Found 1 translation units. [2024-05-12 10:47:18,171 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i [2024-05-12 10:47:18,197 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f823cb5a7/9814012a786049bd9128c3e543a0dc8c/FLAG60635ffc3 [2024-05-12 10:47:18,212 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f823cb5a7/9814012a786049bd9128c3e543a0dc8c [2024-05-12 10:47:18,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-12 10:47:18,214 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-12 10:47:18,217 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-12 10:47:18,217 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-12 10:47:18,221 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-12 10:47:18,222 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 10:47:16" (1/2) ... [2024-05-12 10:47:18,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c5921b9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:47:18, skipping insertion in model container [2024-05-12 10:47:18,223 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 10:47:16" (1/2) ... [2024-05-12 10:47:18,226 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2a6aeae9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:47:18, skipping insertion in model container [2024-05-12 10:47:18,226 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 10:47:18" (2/2) ... [2024-05-12 10:47:18,227 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c5921b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:47:18, skipping insertion in model container [2024-05-12 10:47:18,227 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 10:47:18" (2/2) ... [2024-05-12 10:47:18,228 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-05-12 10:47:18,265 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-05-12 10:47:18,266 INFO L97 edCorrectnessWitness]: Location invariant before [L1710-L1710] ! multithreaded || (((((0 <= pdev && 1 <= pdev) && pdev <= 6) && pdev <= 127) && pdev != 0) && ((pdev == 1 || pdev == 5) || pdev == 6)) [2024-05-12 10:47:18,266 INFO L103 edCorrectnessWitness]: ghost_variable mutex_locked = 0 [2024-05-12 10:47:18,266 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-05-12 10:47:18,266 INFO L106 edCorrectnessWitness]: ghost_update [L1698-L1698] mutex_locked = 1; [2024-05-12 10:47:18,266 INFO L106 edCorrectnessWitness]: ghost_update [L1709-L1709] multithreaded = 1; [2024-05-12 10:47:18,267 INFO L106 edCorrectnessWitness]: ghost_update [L1701-L1701] mutex_locked = 0; [2024-05-12 10:47:18,324 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-12 10:47:18,858 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i[76068,76081] [2024-05-12 10:47:18,878 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 10:47:18,889 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local [2024-05-12 10:47:18,970 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i[76068,76081] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-05-12 10:47:18,981 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 10:47:19,077 INFO L206 MainTranslator]: Completed translation [2024-05-12 10:47:19,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:47:19 WrapperNode [2024-05-12 10:47:19,077 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-12 10:47:19,078 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-12 10:47:19,078 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-12 10:47:19,078 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-12 10:47:19,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:47:19" (1/1) ... [2024-05-12 10:47:19,115 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:47:19" (1/1) ... [2024-05-12 10:47:19,141 INFO L138 Inliner]: procedures = 481, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 101 [2024-05-12 10:47:19,142 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-12 10:47:19,143 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-12 10:47:19,143 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-12 10:47:19,143 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-12 10:47:19,152 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:47:19" (1/1) ... [2024-05-12 10:47:19,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:47:19" (1/1) ... [2024-05-12 10:47:19,156 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:47:19" (1/1) ... [2024-05-12 10:47:19,172 INFO L175 MemorySlicer]: Split 11 memory accesses to 4 slices as follows [2, 3, 5, 1]. 45 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 1, 5, 0]. The 2 writes are split as follows [0, 1, 0, 1]. [2024-05-12 10:47:19,172 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:47:19" (1/1) ... [2024-05-12 10:47:19,173 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:47:19" (1/1) ... [2024-05-12 10:47:19,184 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:47:19" (1/1) ... [2024-05-12 10:47:19,186 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:47:19" (1/1) ... [2024-05-12 10:47:19,189 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:47:19" (1/1) ... [2024-05-12 10:47:19,191 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:47:19" (1/1) ... [2024-05-12 10:47:19,196 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-12 10:47:19,197 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-12 10:47:19,197 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-12 10:47:19,197 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-12 10:47:19,198 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:47:19" (1/1) ... [2024-05-12 10:47:19,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 10:47:19,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-05-12 10:47:19,230 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) [2024-05-12 10:47:19,232 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 [2024-05-12 10:47:19,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-12 10:47:19,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-05-12 10:47:19,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-05-12 10:47:19,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-05-12 10:47:19,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-05-12 10:47:19,258 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-05-12 10:47:19,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-12 10:47:19,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-05-12 10:47:19,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-05-12 10:47:19,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-05-12 10:47:19,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-05-12 10:47:19,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-12 10:47:19,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-12 10:47:19,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-12 10:47:19,260 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-05-12 10:47:19,260 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-05-12 10:47:19,260 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-05-12 10:47:19,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-05-12 10:47:19,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-05-12 10:47:19,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-05-12 10:47:19,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-05-12 10:47:19,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-05-12 10:47:19,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-05-12 10:47:19,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-05-12 10:47:19,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-05-12 10:47:19,262 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-12 10:47:19,521 INFO L244 CfgBuilder]: Building ICFG [2024-05-12 10:47:19,523 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-12 10:47:19,655 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-05-12 10:47:19,655 INFO L293 CfgBuilder]: Performing block encoding [2024-05-12 10:47:19,739 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-12 10:47:19,739 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-05-12 10:47:19,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 10:47:19 BoogieIcfgContainer [2024-05-12 10:47:19,740 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-12 10:47:19,743 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-12 10:47:19,743 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-12 10:47:19,746 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-12 10:47:19,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 10:47:16" (1/4) ... [2024-05-12 10:47:19,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78309163 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 12.05 10:47:19, skipping insertion in model container [2024-05-12 10:47:19,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.05 10:47:18" (2/4) ... [2024-05-12 10:47:19,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78309163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.05 10:47:19, skipping insertion in model container [2024-05-12 10:47:19,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:47:19" (3/4) ... [2024-05-12 10:47:19,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78309163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.05 10:47:19, skipping insertion in model container [2024-05-12 10:47:19,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 10:47:19" (4/4) ... [2024-05-12 10:47:19,750 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2024-05-12 10:47:19,766 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-12 10:47:19,766 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-05-12 10:47:19,767 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-12 10:47:19,802 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-05-12 10:47:19,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 41 transitions, 89 flow [2024-05-12 10:47:19,867 INFO L124 PetriNetUnfolderBase]: 5/44 cut-off events. [2024-05-12 10:47:19,867 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-05-12 10:47:19,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 44 events. 5/44 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 70 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 19. Up to 3 conditions per place. [2024-05-12 10:47:19,870 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 41 transitions, 89 flow [2024-05-12 10:47:19,874 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 34 transitions, 74 flow [2024-05-12 10:47:19,884 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-12 10:47:19,895 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;@444ed925, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-12 10:47:19,895 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-05-12 10:47:19,898 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-05-12 10:47:19,898 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2024-05-12 10:47:19,898 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-05-12 10:47:19,898 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 10:47:19,899 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-05-12 10:47:19,900 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-05-12 10:47:19,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 10:47:19,907 INFO L85 PathProgramCache]: Analyzing trace with hash 293409, now seen corresponding path program 1 times [2024-05-12 10:47:19,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 10:47:19,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864295667] [2024-05-12 10:47:19,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 10:47:19,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 10:47:20,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 10:47:20,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 10:47:20,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 10:47:20,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864295667] [2024-05-12 10:47:20,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864295667] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 10:47:20,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 10:47:20,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-12 10:47:20,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409279428] [2024-05-12 10:47:20,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 10:47:20,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 10:47:20,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 10:47:20,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 10:47:20,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 10:47:20,403 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-05-12 10:47:20,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 34 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2024-05-12 10:47:20,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 10:47:20,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-05-12 10:47:20,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 10:47:20,470 INFO L124 PetriNetUnfolderBase]: 30/96 cut-off events. [2024-05-12 10:47:20,470 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-05-12 10:47:20,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 96 events. 30/96 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 295 event pairs, 30 based on Foata normal form. 7/89 useless extension candidates. Maximal degree in co-relation 157. Up to 78 conditions per place. [2024-05-12 10:47:20,472 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 16 selfloop transitions, 2 changer transitions 3/26 dead transitions. [2024-05-12 10:47:20,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 26 transitions, 100 flow [2024-05-12 10:47:20,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 10:47:20,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 10:47:20,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions. [2024-05-12 10:47:20,490 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42276422764227645 [2024-05-12 10:47:20,492 INFO L175 Difference]: Start difference. First operand has 36 places, 34 transitions, 74 flow. Second operand 3 states and 52 transitions. [2024-05-12 10:47:20,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 26 transitions, 100 flow [2024-05-12 10:47:20,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 26 transitions, 96 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-05-12 10:47:20,496 INFO L231 Difference]: Finished difference. Result has 30 places, 23 transitions, 51 flow [2024-05-12 10:47:20,498 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=30, PETRI_TRANSITIONS=23} [2024-05-12 10:47:20,501 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -6 predicate places. [2024-05-12 10:47:20,501 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 23 transitions, 51 flow [2024-05-12 10:47:20,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2024-05-12 10:47:20,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 10:47:20,502 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 10:47:20,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-12 10:47:20,502 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-05-12 10:47:20,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 10:47:20,503 INFO L85 PathProgramCache]: Analyzing trace with hash -2059246691, now seen corresponding path program 1 times [2024-05-12 10:47:20,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 10:47:20,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198924514] [2024-05-12 10:47:20,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 10:47:20,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 10:47:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 10:47:20,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 10:47:20,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 10:47:20,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198924514] [2024-05-12 10:47:20,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198924514] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 10:47:20,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 10:47:20,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-05-12 10:47:20,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519682643] [2024-05-12 10:47:20,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 10:47:20,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 10:47:20,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 10:47:20,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 10:47:20,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 10:47:20,736 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-05-12 10:47:20,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-05-12 10:47:20,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 10:47:20,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-05-12 10:47:20,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 10:47:20,816 INFO L124 PetriNetUnfolderBase]: 33/107 cut-off events. [2024-05-12 10:47:20,817 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-05-12 10:47:20,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 107 events. 33/107 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 386 event pairs, 9 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 187. Up to 60 conditions per place. [2024-05-12 10:47:20,819 INFO L140 encePairwiseOnDemand]: 38/41 looper letters, 22 selfloop transitions, 2 changer transitions 0/29 dead transitions. [2024-05-12 10:47:20,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 29 transitions, 111 flow [2024-05-12 10:47:20,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 10:47:20,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 10:47:20,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-05-12 10:47:20,826 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5447154471544715 [2024-05-12 10:47:20,827 INFO L175 Difference]: Start difference. First operand has 30 places, 23 transitions, 51 flow. Second operand 3 states and 67 transitions. [2024-05-12 10:47:20,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 29 transitions, 111 flow [2024-05-12 10:47:20,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 29 transitions, 107 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-05-12 10:47:20,829 INFO L231 Difference]: Finished difference. Result has 28 places, 23 transitions, 55 flow [2024-05-12 10:47:20,832 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=55, PETRI_PLACES=28, PETRI_TRANSITIONS=23} [2024-05-12 10:47:20,832 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -8 predicate places. [2024-05-12 10:47:20,833 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 23 transitions, 55 flow [2024-05-12 10:47:20,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-05-12 10:47:20,833 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 10:47:20,834 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 10:47:20,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-12 10:47:20,834 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-05-12 10:47:20,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 10:47:20,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1990611293, now seen corresponding path program 1 times [2024-05-12 10:47:20,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 10:47:20,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399092821] [2024-05-12 10:47:20,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 10:47:20,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 10:47:20,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 10:47:20,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 10:47:20,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 10:47:20,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399092821] [2024-05-12 10:47:20,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399092821] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 10:47:20,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 10:47:20,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-12 10:47:20,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857830264] [2024-05-12 10:47:20,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 10:47:20,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 10:47:20,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 10:47:20,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 10:47:20,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 10:47:20,955 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-05-12 10:47:20,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 23 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2024-05-12 10:47:20,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 10:47:20,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-05-12 10:47:20,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 10:47:21,023 INFO L124 PetriNetUnfolderBase]: 30/100 cut-off events. [2024-05-12 10:47:21,024 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-05-12 10:47:21,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 100 events. 30/100 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 345 event pairs, 6 based on Foata normal form. 4/90 useless extension candidates. Maximal degree in co-relation 51. Up to 52 conditions per place. [2024-05-12 10:47:21,025 INFO L140 encePairwiseOnDemand]: 39/41 looper letters, 19 selfloop transitions, 1 changer transitions 3/28 dead transitions. [2024-05-12 10:47:21,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 28 transitions, 109 flow [2024-05-12 10:47:21,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 10:47:21,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 10:47:21,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2024-05-12 10:47:21,032 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5365853658536586 [2024-05-12 10:47:21,032 INFO L175 Difference]: Start difference. First operand has 28 places, 23 transitions, 55 flow. Second operand 3 states and 66 transitions. [2024-05-12 10:47:21,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 28 transitions, 109 flow [2024-05-12 10:47:21,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 28 transitions, 103 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-05-12 10:47:21,034 INFO L231 Difference]: Finished difference. Result has 26 places, 19 transitions, 41 flow [2024-05-12 10:47:21,035 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=41, PETRI_PLACES=26, PETRI_TRANSITIONS=19} [2024-05-12 10:47:21,036 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -10 predicate places. [2024-05-12 10:47:21,036 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 19 transitions, 41 flow [2024-05-12 10:47:21,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2024-05-12 10:47:21,037 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 10:47:21,038 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 10:47:21,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-12 10:47:21,039 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-05-12 10:47:21,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 10:47:21,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1990599720, now seen corresponding path program 1 times [2024-05-12 10:47:21,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 10:47:21,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621270159] [2024-05-12 10:47:21,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 10:47:21,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 10:47:21,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 10:47:21,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 10:47:21,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 10:47:21,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621270159] [2024-05-12 10:47:21,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621270159] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 10:47:21,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 10:47:21,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-12 10:47:21,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21148273] [2024-05-12 10:47:21,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 10:47:21,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 10:47:21,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 10:47:21,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 10:47:21,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 10:47:21,151 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-05-12 10:47:21,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 19 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 10:47:21,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 10:47:21,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-05-12 10:47:21,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 10:47:21,190 INFO L124 PetriNetUnfolderBase]: 18/53 cut-off events. [2024-05-12 10:47:21,191 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-05-12 10:47:21,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 53 events. 18/53 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 128 event pairs, 6 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 53. Up to 26 conditions per place. [2024-05-12 10:47:21,192 INFO L140 encePairwiseOnDemand]: 39/41 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2024-05-12 10:47:21,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 23 transitions, 91 flow [2024-05-12 10:47:21,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 10:47:21,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 10:47:21,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2024-05-12 10:47:21,195 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4959349593495935 [2024-05-12 10:47:21,195 INFO L175 Difference]: Start difference. First operand has 26 places, 19 transitions, 41 flow. Second operand 3 states and 61 transitions. [2024-05-12 10:47:21,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 23 transitions, 91 flow [2024-05-12 10:47:21,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 23 transitions, 90 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-05-12 10:47:21,197 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2024-05-12 10:47:21,197 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, 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=3, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2024-05-12 10:47:21,198 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -14 predicate places. [2024-05-12 10:47:21,198 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2024-05-12 10:47:21,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 10:47:21,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2024-05-12 10:47:21,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2024-05-12 10:47:21,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2024-05-12 10:47:21,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 7 remaining) [2024-05-12 10:47:21,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2024-05-12 10:47:21,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2024-05-12 10:47:21,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2024-05-12 10:47:21,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-05-12 10:47:21,203 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-05-12 10:47:21,209 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-05-12 10:47:21,209 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-05-12 10:47:21,217 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-05-12 10:47:21,217 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-05-12 10:47:21,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.05 10:47:21 BasicIcfg [2024-05-12 10:47:21,218 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-05-12 10:47:21,219 INFO L158 Benchmark]: Toolchain (without parser) took 3004.56ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 76.1MB in the beginning and 99.5MB in the end (delta: -23.4MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2024-05-12 10:47:21,219 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 115.3MB. Free memory was 75.0MB in the beginning and 74.9MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-05-12 10:47:21,219 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 153.1MB. Free memory is still 125.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-05-12 10:47:21,219 INFO L158 Benchmark]: CACSL2BoogieTranslator took 860.85ms. Allocated memory is still 153.1MB. Free memory was 75.9MB in the beginning and 72.4MB in the end (delta: 3.5MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2024-05-12 10:47:21,220 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.04ms. Allocated memory is still 153.1MB. Free memory was 72.4MB in the beginning and 69.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-05-12 10:47:21,222 INFO L158 Benchmark]: Boogie Preprocessor took 53.87ms. Allocated memory is still 153.1MB. Free memory was 69.5MB in the beginning and 64.7MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-05-12 10:47:21,225 INFO L158 Benchmark]: RCFGBuilder took 543.23ms. Allocated memory is still 153.1MB. Free memory was 64.7MB in the beginning and 101.0MB in the end (delta: -36.4MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2024-05-12 10:47:21,225 INFO L158 Benchmark]: TraceAbstraction took 1475.57ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 99.9MB in the beginning and 99.5MB in the end (delta: 340.0kB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2024-05-12 10:47:21,227 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 115.3MB. Free memory was 75.0MB in the beginning and 74.9MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.17ms. Allocated memory is still 153.1MB. Free memory is still 125.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 860.85ms. Allocated memory is still 153.1MB. Free memory was 75.9MB in the beginning and 72.4MB in the end (delta: 3.5MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.04ms. Allocated memory is still 153.1MB. Free memory was 72.4MB in the beginning and 69.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.87ms. Allocated memory is still 153.1MB. Free memory was 69.5MB in the beginning and 64.7MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 543.23ms. Allocated memory is still 153.1MB. Free memory was 64.7MB in the beginning and 101.0MB in the end (delta: -36.4MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1475.57ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 99.9MB in the beginning and 99.5MB in the end (delta: 340.0kB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1710]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 47 locations, 7 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: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 140 IncrementalHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 3 mSDtfsCounter, 140 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, 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, 0.5s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 56 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 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-05-12 10:47:21,266 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