./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-2-nl.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/popl20-more-queue-add-2-nl.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2520d7ca Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-2-nl.wvr.c ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/popl20-more-queue-add-2-nl.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_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-2520d7c-m [2024-07-17 16:10:48,190 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-07-17 16:10:48,231 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-07-17 16:10:48,248 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-07-17 16:10:48,248 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-07-17 16:10:48,279 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-07-17 16:10:48,279 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-07-17 16:10:48,280 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-07-17 16:10:48,280 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-07-17 16:10:48,283 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-07-17 16:10:48,284 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-07-17 16:10:48,284 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-07-17 16:10:48,284 INFO L153 SettingsManager]: * Use SBE=true [2024-07-17 16:10:48,285 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-07-17 16:10:48,286 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-07-17 16:10:48,286 INFO L153 SettingsManager]: * sizeof long=4 [2024-07-17 16:10:48,286 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-07-17 16:10:48,286 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-07-17 16:10:48,286 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-07-17 16:10:48,287 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-07-17 16:10:48,287 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-07-17 16:10:48,287 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-07-17 16:10:48,287 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-07-17 16:10:48,288 INFO L153 SettingsManager]: * sizeof long double=12 [2024-07-17 16:10:48,288 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-07-17 16:10:48,288 INFO L153 SettingsManager]: * Use constant arrays=true [2024-07-17 16:10:48,289 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-07-17 16:10:48,289 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-07-17 16:10:48,289 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-07-17 16:10:48,289 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-07-17 16:10:48,290 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-17 16:10:48,290 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-07-17 16:10:48,290 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-07-17 16:10:48,291 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-07-17 16:10:48,291 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-07-17 16:10:48,291 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-07-17 16:10:48,291 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-07-17 16:10:48,291 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-07-17 16:10:48,292 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-07-17 16:10:48,292 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-07-17 16:10:48,292 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-07-17 16:10:48,292 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-07-17 16:10:48,293 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-07-17 16:10:48,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-07-17 16:10:48,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-07-17 16:10:48,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-07-17 16:10:48,536 INFO L270 PluginConnector]: Initializing CDTParser... [2024-07-17 16:10:48,536 INFO L274 PluginConnector]: CDTParser initialized [2024-07-17 16:10:48,537 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-2-nl.wvr.c [2024-07-17 16:10:49,609 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-07-17 16:10:49,778 INFO L384 CDTParser]: Found 1 translation units. [2024-07-17 16:10:49,779 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-queue-add-2-nl.wvr.c [2024-07-17 16:10:49,785 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/95d0c893f/4d0d4aefd0ed40f2844f0e8bfa6771f4/FLAGedd9075fb [2024-07-17 16:10:49,798 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/95d0c893f/4d0d4aefd0ed40f2844f0e8bfa6771f4 [2024-07-17 16:10:49,800 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-07-17 16:10:49,801 INFO L274 PluginConnector]: Witness Parser initialized [2024-07-17 16:10:49,803 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/popl20-more-queue-add-2-nl.wvr.yml/witness.yml [2024-07-17 16:10:49,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-07-17 16:10:49,875 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-07-17 16:10:49,877 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-07-17 16:10:49,877 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-07-17 16:10:49,880 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-07-17 16:10:49,881 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 04:10:49" (1/2) ... [2024-07-17 16:10:49,882 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b4afddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:10:49, skipping insertion in model container [2024-07-17 16:10:49,882 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 04:10:49" (1/2) ... [2024-07-17 16:10:49,883 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3a846bf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:10:49, skipping insertion in model container [2024-07-17 16:10:49,883 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.07 04:10:49" (2/2) ... [2024-07-17 16:10:49,885 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b4afddb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:10:49, skipping insertion in model container [2024-07-17 16:10:49,885 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.07 04:10:49" (2/2) ... [2024-07-17 16:10:49,885 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-07-17 16:10:49,901 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-07-17 16:10:49,902 INFO L97 edCorrectnessWitness]: Location invariant before [L100-L100] ! multithreaded || (4294967296LL + (long long )q_back) + (long long )q_front >= 0LL [2024-07-17 16:10:49,905 INFO L97 edCorrectnessWitness]: Location invariant before [L101-L101] ! multithreaded || (4294967296LL + (long long )q_back) + (long long )q_front >= 0LL [2024-07-17 16:10:49,905 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-07-17 16:10:49,905 INFO L106 edCorrectnessWitness]: ghost_update [L99-L99] multithreaded = 1; [2024-07-17 16:10:49,930 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-07-17 16:10:50,092 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-17 16:10:50,098 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-07-17 16:10:50,145 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-17 16:10:50,158 INFO L206 MainTranslator]: Completed translation [2024-07-17 16:10:50,159 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:10:50 WrapperNode [2024-07-17 16:10:50,159 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-07-17 16:10:50,160 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-07-17 16:10:50,161 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-07-17 16:10:50,161 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-07-17 16:10:50,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:10:50" (1/1) ... [2024-07-17 16:10:50,171 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:10:50" (1/1) ... [2024-07-17 16:10:50,190 INFO L138 Inliner]: procedures = 24, calls = 30, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 166 [2024-07-17 16:10:50,190 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-07-17 16:10:50,191 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-07-17 16:10:50,191 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-07-17 16:10:50,191 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-07-17 16:10:50,204 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:10:50" (1/1) ... [2024-07-17 16:10:50,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:10:50" (1/1) ... [2024-07-17 16:10:50,216 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:10:50" (1/1) ... [2024-07-17 16:10:50,216 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:10:50" (1/1) ... [2024-07-17 16:10:50,223 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:10:50" (1/1) ... [2024-07-17 16:10:50,231 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:10:50" (1/1) ... [2024-07-17 16:10:50,239 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:10:50" (1/1) ... [2024-07-17 16:10:50,240 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:10:50" (1/1) ... [2024-07-17 16:10:50,242 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-07-17 16:10:50,244 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-07-17 16:10:50,244 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-07-17 16:10:50,244 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-07-17 16:10:50,245 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:10:50" (1/1) ... [2024-07-17 16:10:50,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-17 16:10:50,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 16:10:50,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-07-17 16:10:50,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-07-17 16:10:50,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-07-17 16:10:50,309 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-07-17 16:10:50,309 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-07-17 16:10:50,309 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-07-17 16:10:50,310 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-07-17 16:10:50,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-07-17 16:10:50,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-07-17 16:10:50,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-07-17 16:10:50,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-07-17 16:10:50,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-07-17 16:10:50,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-07-17 16:10:50,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-07-17 16:10:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-07-17 16:10:50,312 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-07-17 16:10:50,429 INFO L244 CfgBuilder]: Building ICFG [2024-07-17 16:10:50,431 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-07-17 16:10:50,668 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-07-17 16:10:50,669 INFO L293 CfgBuilder]: Performing block encoding [2024-07-17 16:10:50,823 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-07-17 16:10:50,824 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-07-17 16:10:50,824 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 04:10:50 BoogieIcfgContainer [2024-07-17 16:10:50,824 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-07-17 16:10:50,826 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-07-17 16:10:50,826 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-07-17 16:10:50,828 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-07-17 16:10:50,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 04:10:49" (1/4) ... [2024-07-17 16:10:50,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5978c62d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 04:10:50, skipping insertion in model container [2024-07-17 16:10:50,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.07 04:10:49" (2/4) ... [2024-07-17 16:10:50,830 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5978c62d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 17.07 04:10:50, skipping insertion in model container [2024-07-17 16:10:50,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 04:10:50" (3/4) ... [2024-07-17 16:10:50,830 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5978c62d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 17.07 04:10:50, skipping insertion in model container [2024-07-17 16:10:50,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 04:10:50" (4/4) ... [2024-07-17 16:10:50,832 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-queue-add-2-nl.wvr.c [2024-07-17 16:10:50,845 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-07-17 16:10:50,845 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-07-17 16:10:50,845 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-07-17 16:10:50,896 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-07-17 16:10:50,933 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-17 16:10:50,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-07-17 16:10:50,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 16:10:50,975 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-07-17 16:10:50,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-07-17 16:10:50,997 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-07-17 16:10:51,006 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-07-17 16:10:51,013 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=PARTIAL_ORDER_FA, 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;@778d617b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-17 16:10:51,013 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-07-17 16:10:51,091 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-07-17 16:10:51,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 16:10:51,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1569600085, now seen corresponding path program 1 times [2024-07-17 16:10:51,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 16:10:51,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609011027] [2024-07-17 16:10:51,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 16:10:51,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 16:10:51,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 16:10:51,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 16:10:51,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 16:10:51,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609011027] [2024-07-17 16:10:51,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609011027] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-17 16:10:51,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-17 16:10:51,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-07-17 16:10:51,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775090366] [2024-07-17 16:10:51,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 16:10:51,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-07-17 16:10:51,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 16:10:51,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-07-17 16:10:51,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-07-17 16:10:51,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:10:51,401 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 16:10:51,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-07-17 16:10:51,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:10:51,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:10:51,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-07-17 16:10:51,589 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-07-17 16:10:51,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 16:10:51,589 INFO L85 PathProgramCache]: Analyzing trace with hash -676936612, now seen corresponding path program 1 times [2024-07-17 16:10:51,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 16:10:51,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416847794] [2024-07-17 16:10:51,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 16:10:51,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 16:10:51,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 16:10:51,642 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-07-17 16:10:51,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 16:10:51,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416847794] [2024-07-17 16:10:51,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416847794] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-17 16:10:51,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-17 16:10:51,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-07-17 16:10:51,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673549413] [2024-07-17 16:10:51,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 16:10:51,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-07-17 16:10:51,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 16:10:51,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-07-17 16:10:51,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-07-17 16:10:51,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:10:51,645 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 16:10:51,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-07-17 16:10:51,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:10:51,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 16:10:51,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:10:51,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 16:10:51,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-07-17 16:10:51,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-07-17 16:10:51,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-07-17 16:10:51,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-07-17 16:10:51,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-07-17 16:10:51,781 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-07-17 16:10:51,783 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-07-17 16:10:51,783 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-07-17 16:10:51,785 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-07-17 16:10:51,785 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-07-17 16:10:51,786 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 04:10:51 BasicIcfg [2024-07-17 16:10:51,786 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-07-17 16:10:51,786 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-07-17 16:10:51,787 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-07-17 16:10:51,787 INFO L274 PluginConnector]: Witness Printer initialized [2024-07-17 16:10:51,787 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 04:10:50" (4/5) ... [2024-07-17 16:10:51,789 INFO L137 WitnessPrinter]: Generating witness for correct program [2024-07-17 16:10:51,791 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-07-17 16:10:51,791 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-07-17 16:10:51,798 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 97 nodes and edges [2024-07-17 16:10:51,798 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2024-07-17 16:10:51,798 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-07-17 16:10:51,798 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-07-17 16:10:51,859 INFO L149 WitnessManager]: Wrote witness to /storage/repos/sv-benchmarks/c/weaver/popl20-more-queue-add-2-nl.wvr.c-witness.graphml [2024-07-17 16:10:51,860 INFO L149 WitnessManager]: Wrote witness to /storage/repos/sv-benchmarks/c/weaver/popl20-more-queue-add-2-nl.wvr.c-witness.yml [2024-07-17 16:10:51,860 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-07-17 16:10:51,861 INFO L158 Benchmark]: Toolchain (without parser) took 1986.32ms. Allocated memory is still 123.7MB. Free memory was 66.4MB in the beginning and 35.2MB in the end (delta: 31.2MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2024-07-17 16:10:51,861 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 123.7MB. Free memory was 89.8MB in the beginning and 89.7MB in the end (delta: 75.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-07-17 16:10:51,861 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 123.7MB. Free memory is still 69.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-07-17 16:10:51,862 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.72ms. Allocated memory is still 123.7MB. Free memory was 66.1MB in the beginning and 51.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-07-17 16:10:51,862 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.18ms. Allocated memory is still 123.7MB. Free memory was 51.2MB in the beginning and 49.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-07-17 16:10:51,862 INFO L158 Benchmark]: Boogie Preprocessor took 51.77ms. Allocated memory is still 123.7MB. Free memory was 49.4MB in the beginning and 47.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-07-17 16:10:51,862 INFO L158 Benchmark]: RCFGBuilder took 580.80ms. Allocated memory is still 123.7MB. Free memory was 47.6MB in the beginning and 57.1MB in the end (delta: -9.6MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2024-07-17 16:10:51,875 INFO L158 Benchmark]: TraceAbstraction took 960.41ms. Allocated memory is still 123.7MB. Free memory was 56.5MB in the beginning and 39.4MB in the end (delta: 17.1MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2024-07-17 16:10:51,876 INFO L158 Benchmark]: Witness Printer took 74.07ms. Allocated memory is still 123.7MB. Free memory was 39.4MB in the beginning and 35.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-07-17 16:10:51,878 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 123.7MB. Free memory was 89.8MB in the beginning and 89.7MB in the end (delta: 75.3kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 123.7MB. Free memory is still 69.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.72ms. Allocated memory is still 123.7MB. Free memory was 66.1MB in the beginning and 51.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.18ms. Allocated memory is still 123.7MB. Free memory was 51.2MB in the beginning and 49.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.77ms. Allocated memory is still 123.7MB. Free memory was 49.4MB in the beginning and 47.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 580.80ms. Allocated memory is still 123.7MB. Free memory was 47.6MB in the beginning and 57.1MB in the end (delta: -9.6MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * TraceAbstraction took 960.41ms. Allocated memory is still 123.7MB. Free memory was 56.5MB in the beginning and 39.4MB in the end (delta: 17.1MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * Witness Printer took 74.07ms. Allocated memory is still 123.7MB. Free memory was 39.4MB in the beginning and 35.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1213, independent: 1110, independent conditional: 723, independent unconditional: 387, dependent: 103, dependent conditional: 91, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1145, independent: 1110, independent conditional: 723, independent unconditional: 387, dependent: 35, dependent conditional: 23, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1145, independent: 1110, independent conditional: 723, independent unconditional: 387, dependent: 35, dependent conditional: 23, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1199, independent: 1110, independent conditional: 31, independent unconditional: 1079, dependent: 89, dependent conditional: 23, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1199, independent: 1110, independent conditional: 31, independent unconditional: 1079, dependent: 89, dependent conditional: 2, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1199, independent: 1110, independent conditional: 31, independent unconditional: 1079, dependent: 89, dependent conditional: 2, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 355, independent: 341, independent conditional: 6, independent unconditional: 335, dependent: 14, dependent conditional: 2, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 355, independent: 324, independent conditional: 0, independent unconditional: 324, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 31, independent: 17, independent conditional: 6, independent unconditional: 11, dependent: 14, dependent conditional: 2, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 31, independent: 17, independent conditional: 6, independent unconditional: 11, dependent: 14, dependent conditional: 2, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 161, independent: 113, independent conditional: 31, independent unconditional: 83, dependent: 48, dependent conditional: 10, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1199, independent: 769, independent conditional: 25, independent unconditional: 744, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 355, unknown conditional: 8, unknown unconditional: 347] , Statistics on independence cache: Total cache size (in pairs): 355, Positive cache size: 341, Positive conditional cache size: 6, Positive unconditional cache size: 335, Negative cache size: 14, Negative conditional cache size: 2, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 21, Maximal queried relation: 1, Independence queries for same thread: 68 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 66, Number of trivial persistent sets: 41, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 399, independent: 387, independent conditional: 0, independent unconditional: 387, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1213, independent: 1110, independent conditional: 723, independent unconditional: 387, dependent: 103, dependent conditional: 91, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1145, independent: 1110, independent conditional: 723, independent unconditional: 387, dependent: 35, dependent conditional: 23, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1145, independent: 1110, independent conditional: 723, independent unconditional: 387, dependent: 35, dependent conditional: 23, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1199, independent: 1110, independent conditional: 31, independent unconditional: 1079, dependent: 89, dependent conditional: 23, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1199, independent: 1110, independent conditional: 31, independent unconditional: 1079, dependent: 89, dependent conditional: 2, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1199, independent: 1110, independent conditional: 31, independent unconditional: 1079, dependent: 89, dependent conditional: 2, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 355, independent: 341, independent conditional: 6, independent unconditional: 335, dependent: 14, dependent conditional: 2, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 355, independent: 324, independent conditional: 0, independent unconditional: 324, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 31, independent: 17, independent conditional: 6, independent unconditional: 11, dependent: 14, dependent conditional: 2, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 31, independent: 17, independent conditional: 6, independent unconditional: 11, dependent: 14, dependent conditional: 2, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 161, independent: 113, independent conditional: 31, independent unconditional: 83, dependent: 48, dependent conditional: 10, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1199, independent: 769, independent conditional: 25, independent unconditional: 744, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 355, unknown conditional: 8, unknown unconditional: 347] , Statistics on independence cache: Total cache size (in pairs): 355, Positive cache size: 341, Positive conditional cache size: 6, Positive unconditional cache size: 335, Negative cache size: 14, Negative conditional cache size: 2, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 21, Maximal queried relation: 1, Independence queries for same thread: 68 - PositiveResult [Line: 100]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 101]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 45 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-07-17 16:10:51,902 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-07-17 16:10:52,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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