./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-barrier.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/protection/parallel-barrier.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version bcb38a6f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/parallel-barrier.wvr.c ./goblint.2024-05-21_14-57-05.files/protection/parallel-barrier.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-bcb38a6-m [2024-06-03 19:01:23,022 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-03 19:01:23,087 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-03 19:01:23,092 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-03 19:01:23,092 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-03 19:01:23,120 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-03 19:01:23,123 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-03 19:01:23,123 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-03 19:01:23,124 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-03 19:01:23,128 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-03 19:01:23,128 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-03 19:01:23,129 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-03 19:01:23,130 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-03 19:01:23,131 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-03 19:01:23,131 INFO L153 SettingsManager]: * Use SBE=true [2024-06-03 19:01:23,132 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-03 19:01:23,132 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-03 19:01:23,132 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-03 19:01:23,132 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-03 19:01:23,133 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-03 19:01:23,135 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-03 19:01:23,135 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-03 19:01:23,135 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-03 19:01:23,136 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-03 19:01:23,136 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-03 19:01:23,136 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-03 19:01:23,136 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-03 19:01:23,137 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-03 19:01:23,137 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-03 19:01:23,137 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-03 19:01:23,138 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-03 19:01:23,139 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-03 19:01:23,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 19:01:23,139 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-03 19:01:23,139 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-03 19:01:23,139 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-03 19:01:23,140 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-03 19:01:23,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-03 19:01:23,140 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-03 19:01:23,140 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-03 19:01:23,140 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-03 19:01:23,141 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-03 19:01:23,141 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-03 19:01:23,141 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-03 19:01:23,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-03 19:01:23,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-03 19:01:23,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-03 19:01:23,438 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-03 19:01:23,439 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-03 19:01:23,440 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/protection/parallel-barrier.wvr.yml/witness.yml [2024-06-03 19:01:23,513 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-03 19:01:23,513 INFO L274 PluginConnector]: CDTParser initialized [2024-06-03 19:01:23,514 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-barrier.wvr.c [2024-06-03 19:01:24,677 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-03 19:01:24,862 INFO L384 CDTParser]: Found 1 translation units. [2024-06-03 19:01:24,863 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c [2024-06-03 19:01:24,871 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c26277b9/4861c82ddc3248618e40d1d525fc7a22/FLAG652893f51 [2024-06-03 19:01:24,882 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c26277b9/4861c82ddc3248618e40d1d525fc7a22 [2024-06-03 19:01:24,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-03 19:01:24,884 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-03 19:01:24,885 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-03 19:01:24,885 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-03 19:01:24,891 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-03 19:01:24,892 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 07:01:23" (1/2) ... [2024-06-03 19:01:24,893 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67e4c169 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 07:01:24, skipping insertion in model container [2024-06-03 19:01:24,893 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 07:01:23" (1/2) ... [2024-06-03 19:01:24,895 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3222ef42 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 07:01:24, skipping insertion in model container [2024-06-03 19:01:24,895 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 07:01:24" (2/2) ... [2024-06-03 19:01:24,895 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67e4c169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 07:01:24, skipping insertion in model container [2024-06-03 19:01:24,895 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 07:01:24" (2/2) ... [2024-06-03 19:01:24,896 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-03 19:01:24,917 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-03 19:01:24,919 INFO L97 edCorrectnessWitness]: Location invariant before [L194-L194] ! multithreaded || -2147483647 <= y_7 [2024-06-03 19:01:24,919 INFO L97 edCorrectnessWitness]: Location invariant before [L165-L165] ! multithreaded || -2147483647 <= y_7 [2024-06-03 19:01:24,919 INFO L97 edCorrectnessWitness]: Location invariant before [L102-L102] ! multithreaded || -2147483647 <= y_7 [2024-06-03 19:01:24,919 INFO L97 edCorrectnessWitness]: Location invariant before [L103-L103] ! multithreaded || -2147483647 <= y_7 [2024-06-03 19:01:24,919 INFO L97 edCorrectnessWitness]: Location invariant before [L193-L193] ! multithreaded || -2147483647 <= y_7 [2024-06-03 19:01:24,920 INFO L97 edCorrectnessWitness]: Location invariant before [L166-L166] ! multithreaded || -2147483647 <= y_7 [2024-06-03 19:01:24,921 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-03 19:01:24,921 INFO L106 edCorrectnessWitness]: ghost_update [L192-L192] multithreaded = 1; [2024-06-03 19:01:24,946 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-03 19:01:25,174 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 19:01:25,188 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-03 19:01:25,270 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 19:01:25,290 INFO L206 MainTranslator]: Completed translation [2024-06-03 19:01:25,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 07:01:25 WrapperNode [2024-06-03 19:01:25,291 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-03 19:01:25,292 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-03 19:01:25,292 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-03 19:01:25,292 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-03 19:01:25,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 07:01:25" (1/1) ... [2024-06-03 19:01:25,318 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 07:01:25" (1/1) ... [2024-06-03 19:01:25,355 INFO L138 Inliner]: procedures = 24, calls = 69, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 243 [2024-06-03 19:01:25,356 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-03 19:01:25,357 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-03 19:01:25,357 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-03 19:01:25,357 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-03 19:01:25,367 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 07:01:25" (1/1) ... [2024-06-03 19:01:25,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 07:01:25" (1/1) ... [2024-06-03 19:01:25,380 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 07:01:25" (1/1) ... [2024-06-03 19:01:25,401 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-06-03 19:01:25,406 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 07:01:25" (1/1) ... [2024-06-03 19:01:25,407 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 07:01:25" (1/1) ... [2024-06-03 19:01:25,418 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 07:01:25" (1/1) ... [2024-06-03 19:01:25,421 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 07:01:25" (1/1) ... [2024-06-03 19:01:25,433 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 07:01:25" (1/1) ... [2024-06-03 19:01:25,434 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 07:01:25" (1/1) ... [2024-06-03 19:01:25,436 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-03 19:01:25,437 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-03 19:01:25,441 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-03 19:01:25,442 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-03 19:01:25,442 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 07:01:25" (1/1) ... [2024-06-03 19:01:25,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 19:01:25,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-03 19:01:25,564 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-03 19:01:25,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-03 19:01:25,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-03 19:01:25,607 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-03 19:01:25,607 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-03 19:01:25,608 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-03 19:01:25,608 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-03 19:01:25,608 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-03 19:01:25,608 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-03 19:01:25,608 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-06-03 19:01:25,609 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-06-03 19:01:25,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-03 19:01:25,609 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-06-03 19:01:25,610 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-06-03 19:01:25,610 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-06-03 19:01:25,611 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-06-03 19:01:25,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-03 19:01:25,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-03 19:01:25,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-03 19:01:25,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-03 19:01:25,613 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-03 19:01:25,773 INFO L244 CfgBuilder]: Building ICFG [2024-06-03 19:01:25,776 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-03 19:01:26,058 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-03 19:01:26,059 INFO L293 CfgBuilder]: Performing block encoding [2024-06-03 19:01:26,341 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-03 19:01:26,341 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-03 19:01:26,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 07:01:26 BoogieIcfgContainer [2024-06-03 19:01:26,342 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-03 19:01:26,344 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-03 19:01:26,344 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-03 19:01:26,347 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-03 19:01:26,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 07:01:23" (1/4) ... [2024-06-03 19:01:26,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e69864f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 03.06 07:01:26, skipping insertion in model container [2024-06-03 19:01:26,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.06 07:01:24" (2/4) ... [2024-06-03 19:01:26,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e69864f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.06 07:01:26, skipping insertion in model container [2024-06-03 19:01:26,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 07:01:25" (3/4) ... [2024-06-03 19:01:26,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e69864f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.06 07:01:26, skipping insertion in model container [2024-06-03 19:01:26,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 07:01:26" (4/4) ... [2024-06-03 19:01:26,354 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2024-06-03 19:01:26,370 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-03 19:01:26,371 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-06-03 19:01:26,371 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-03 19:01:26,469 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-06-03 19:01:26,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 82 transitions, 230 flow [2024-06-03 19:01:26,550 INFO L124 PetriNetUnfolderBase]: 4/70 cut-off events. [2024-06-03 19:01:26,550 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-06-03 19:01:26,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 70 events. 4/70 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 185 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 81. Up to 3 conditions per place. [2024-06-03 19:01:26,556 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 82 transitions, 230 flow [2024-06-03 19:01:26,559 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 68 transitions, 181 flow [2024-06-03 19:01:26,566 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-03 19:01:26,572 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;@409a38d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-03 19:01:26,573 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-06-03 19:01:26,576 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-03 19:01:26,577 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-03 19:01:26,577 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 19:01:26,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 19:01:26,578 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-03 19:01:26,578 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 17 more)] === [2024-06-03 19:01:26,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 19:01:26,583 INFO L85 PathProgramCache]: Analyzing trace with hash 2108239429, now seen corresponding path program 1 times [2024-06-03 19:01:26,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 19:01:26,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540340745] [2024-06-03 19:01:26,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 19:01:26,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 19:01:26,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 19:01:26,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 19:01:26,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 19:01:26,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540340745] [2024-06-03 19:01:26,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540340745] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 19:01:26,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 19:01:26,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-03 19:01:26,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4969049] [2024-06-03 19:01:26,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 19:01:26,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-03 19:01:26,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 19:01:26,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-03 19:01:26,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-03 19:01:26,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 86 [2024-06-03 19:01:26,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 68 transitions, 181 flow. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 19:01:26,870 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 19:01:26,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 86 [2024-06-03 19:01:26,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 19:01:31,181 INFO L124 PetriNetUnfolderBase]: 30782/41002 cut-off events. [2024-06-03 19:01:31,181 INFO L125 PetriNetUnfolderBase]: For 4557/4557 co-relation queries the response was YES. [2024-06-03 19:01:31,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86127 conditions, 41002 events. 30782/41002 cut-off events. For 4557/4557 co-relation queries the response was YES. Maximal size of possible extension queue 1602. Compared 257125 event pairs, 9743 based on Foata normal form. 789/38533 useless extension candidates. Maximal degree in co-relation 85597. Up to 36292 conditions per place. [2024-06-03 19:01:31,539 INFO L140 encePairwiseOnDemand]: 77/86 looper letters, 67 selfloop transitions, 3 changer transitions 0/91 dead transitions. [2024-06-03 19:01:31,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 91 transitions, 391 flow [2024-06-03 19:01:31,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-03 19:01:31,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-03 19:01:31,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 157 transitions. [2024-06-03 19:01:31,558 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6085271317829457 [2024-06-03 19:01:31,559 INFO L175 Difference]: Start difference. First operand has 83 places, 68 transitions, 181 flow. Second operand 3 states and 157 transitions. [2024-06-03 19:01:31,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 91 transitions, 391 flow [2024-06-03 19:01:31,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 91 transitions, 346 flow, removed 0 selfloop flow, removed 11 redundant places. [2024-06-03 19:01:31,610 INFO L231 Difference]: Finished difference. Result has 74 places, 69 transitions, 177 flow [2024-06-03 19:01:31,612 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=177, PETRI_PLACES=74, PETRI_TRANSITIONS=69} [2024-06-03 19:01:31,615 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, -9 predicate places. [2024-06-03 19:01:31,616 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 69 transitions, 177 flow [2024-06-03 19:01:31,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 19:01:31,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 19:01:31,617 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 19:01:31,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-03 19:01:31,618 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 17 more)] === [2024-06-03 19:01:31,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 19:01:31,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1788685010, now seen corresponding path program 1 times [2024-06-03 19:01:31,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 19:01:31,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955233377] [2024-06-03 19:01:31,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 19:01:31,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 19:01:31,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 19:01:31,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 19:01:31,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 19:01:31,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955233377] [2024-06-03 19:01:31,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955233377] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 19:01:31,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 19:01:31,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-03 19:01:31,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605309060] [2024-06-03 19:01:31,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 19:01:31,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-03 19:01:31,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 19:01:31,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-03 19:01:31,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-03 19:01:31,865 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 86 [2024-06-03 19:01:31,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 69 transitions, 177 flow. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 19:01:31,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 19:01:31,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 86 [2024-06-03 19:01:31,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 19:01:36,998 INFO L124 PetriNetUnfolderBase]: 55871/76218 cut-off events. [2024-06-03 19:01:36,998 INFO L125 PetriNetUnfolderBase]: For 11455/11455 co-relation queries the response was YES. [2024-06-03 19:01:37,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163564 conditions, 76218 events. 55871/76218 cut-off events. For 11455/11455 co-relation queries the response was YES. Maximal size of possible extension queue 3187. Compared 534437 event pairs, 10578 based on Foata normal form. 5052/77352 useless extension candidates. Maximal degree in co-relation 59586. Up to 34459 conditions per place. [2024-06-03 19:01:37,420 INFO L140 encePairwiseOnDemand]: 77/86 looper letters, 161 selfloop transitions, 10 changer transitions 0/190 dead transitions. [2024-06-03 19:01:37,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 190 transitions, 820 flow [2024-06-03 19:01:37,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 19:01:37,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 19:01:37,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 354 transitions. [2024-06-03 19:01:37,430 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5880398671096345 [2024-06-03 19:01:37,430 INFO L175 Difference]: Start difference. First operand has 74 places, 69 transitions, 177 flow. Second operand 7 states and 354 transitions. [2024-06-03 19:01:37,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 190 transitions, 820 flow [2024-06-03 19:01:37,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 190 transitions, 816 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-03 19:01:37,439 INFO L231 Difference]: Finished difference. Result has 83 places, 75 transitions, 247 flow [2024-06-03 19:01:37,440 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=247, PETRI_PLACES=83, PETRI_TRANSITIONS=75} [2024-06-03 19:01:37,441 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, 0 predicate places. [2024-06-03 19:01:37,446 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 75 transitions, 247 flow [2024-06-03 19:01:37,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 19:01:37,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 19:01:37,447 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 19:01:37,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-03 19:01:37,447 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 17 more)] === [2024-06-03 19:01:37,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 19:01:37,451 INFO L85 PathProgramCache]: Analyzing trace with hash 128675678, now seen corresponding path program 1 times [2024-06-03 19:01:37,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 19:01:37,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999213267] [2024-06-03 19:01:37,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 19:01:37,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 19:01:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 19:01:37,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 19:01:37,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 19:01:37,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999213267] [2024-06-03 19:01:37,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999213267] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 19:01:37,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 19:01:37,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-03 19:01:37,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459584899] [2024-06-03 19:01:37,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 19:01:37,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-03 19:01:37,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 19:01:37,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-03 19:01:37,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-03 19:01:37,544 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 86 [2024-06-03 19:01:37,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 75 transitions, 247 flow. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 19:01:37,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 19:01:37,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 86 [2024-06-03 19:01:37,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 19:01:38,422 INFO L124 PetriNetUnfolderBase]: 7565/12840 cut-off events. [2024-06-03 19:01:38,423 INFO L125 PetriNetUnfolderBase]: For 2225/2225 co-relation queries the response was YES. [2024-06-03 19:01:38,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29524 conditions, 12840 events. 7565/12840 cut-off events. For 2225/2225 co-relation queries the response was YES. Maximal size of possible extension queue 491. Compared 94957 event pairs, 5232 based on Foata normal form. 138/12101 useless extension candidates. Maximal degree in co-relation 21406. Up to 8048 conditions per place. [2024-06-03 19:01:38,496 INFO L140 encePairwiseOnDemand]: 83/86 looper letters, 56 selfloop transitions, 2 changer transitions 0/86 dead transitions. [2024-06-03 19:01:38,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 86 transitions, 366 flow [2024-06-03 19:01:38,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-03 19:01:38,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-03 19:01:38,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 161 transitions. [2024-06-03 19:01:38,497 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.624031007751938 [2024-06-03 19:01:38,497 INFO L175 Difference]: Start difference. First operand has 83 places, 75 transitions, 247 flow. Second operand 3 states and 161 transitions. [2024-06-03 19:01:38,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 86 transitions, 366 flow [2024-06-03 19:01:38,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 86 transitions, 349 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-06-03 19:01:38,537 INFO L231 Difference]: Finished difference. Result has 79 places, 68 transitions, 198 flow [2024-06-03 19:01:38,538 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=79, PETRI_TRANSITIONS=68} [2024-06-03 19:01:38,538 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, -4 predicate places. [2024-06-03 19:01:38,539 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 68 transitions, 198 flow [2024-06-03 19:01:38,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 19:01:38,539 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 19:01:38,539 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 19:01:38,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-03 19:01:38,540 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 17 more)] === [2024-06-03 19:01:38,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 19:01:38,540 INFO L85 PathProgramCache]: Analyzing trace with hash -554195823, now seen corresponding path program 1 times [2024-06-03 19:01:38,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 19:01:38,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628530468] [2024-06-03 19:01:38,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 19:01:38,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 19:01:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 19:01:38,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 19:01:38,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 19:01:38,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628530468] [2024-06-03 19:01:38,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628530468] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 19:01:38,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 19:01:38,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-03 19:01:38,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535773532] [2024-06-03 19:01:38,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 19:01:38,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-03 19:01:38,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 19:01:38,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-03 19:01:38,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-06-03 19:01:38,685 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 86 [2024-06-03 19:01:38,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 68 transitions, 198 flow. Second operand has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 19:01:38,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 19:01:38,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 86 [2024-06-03 19:01:38,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 19:01:40,227 INFO L124 PetriNetUnfolderBase]: 16073/22287 cut-off events. [2024-06-03 19:01:40,228 INFO L125 PetriNetUnfolderBase]: For 11423/11423 co-relation queries the response was YES. [2024-06-03 19:01:40,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47807 conditions, 22287 events. 16073/22287 cut-off events. For 11423/11423 co-relation queries the response was YES. Maximal size of possible extension queue 786. Compared 134592 event pairs, 2305 based on Foata normal form. 1828/23011 useless extension candidates. Maximal degree in co-relation 28434. Up to 3885 conditions per place. [2024-06-03 19:01:40,303 INFO L140 encePairwiseOnDemand]: 76/86 looper letters, 0 selfloop transitions, 0 changer transitions 203/203 dead transitions. [2024-06-03 19:01:40,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 203 transitions, 873 flow [2024-06-03 19:01:40,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-03 19:01:40,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-03 19:01:40,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 424 transitions. [2024-06-03 19:01:40,306 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4930232558139535 [2024-06-03 19:01:40,306 INFO L175 Difference]: Start difference. First operand has 79 places, 68 transitions, 198 flow. Second operand 10 states and 424 transitions. [2024-06-03 19:01:40,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 203 transitions, 873 flow [2024-06-03 19:01:40,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 203 transitions, 860 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-03 19:01:40,389 INFO L231 Difference]: Finished difference. Result has 79 places, 0 transitions, 0 flow [2024-06-03 19:01:40,390 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=79, PETRI_TRANSITIONS=0} [2024-06-03 19:01:40,390 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, -4 predicate places. [2024-06-03 19:01:40,391 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 0 transitions, 0 flow [2024-06-03 19:01:40,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 19:01:40,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 20 remaining) [2024-06-03 19:01:40,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 20 remaining) [2024-06-03 19:01:40,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 20 remaining) [2024-06-03 19:01:40,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 20 remaining) [2024-06-03 19:01:40,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 20 remaining) [2024-06-03 19:01:40,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 20 remaining) [2024-06-03 19:01:40,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 20 remaining) [2024-06-03 19:01:40,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 20 remaining) [2024-06-03 19:01:40,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 20 remaining) [2024-06-03 19:01:40,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 20 remaining) [2024-06-03 19:01:40,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2024-06-03 19:01:40,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2024-06-03 19:01:40,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 20 remaining) [2024-06-03 19:01:40,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 20 remaining) [2024-06-03 19:01:40,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Thread1of1ForFork1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 20 remaining) [2024-06-03 19:01:40,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Thread1of1ForFork1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 20 remaining) [2024-06-03 19:01:40,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 20 remaining) [2024-06-03 19:01:40,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 20 remaining) [2024-06-03 19:01:40,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork4Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 20 remaining) [2024-06-03 19:01:40,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork4Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 20 remaining) [2024-06-03 19:01:40,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-03 19:01:40,399 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-06-03 19:01:40,404 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-03 19:01:40,404 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-03 19:01:40,408 INFO L507 ceAbstractionStarter]: Automizer considered 6 witness invariants [2024-06-03 19:01:40,408 INFO L508 ceAbstractionStarter]: WitnessConsidered=6 [2024-06-03 19:01:40,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.06 07:01:40 BasicIcfg [2024-06-03 19:01:40,409 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-03 19:01:40,410 INFO L158 Benchmark]: Toolchain (without parser) took 15526.16ms. Allocated memory was 186.6MB in the beginning and 9.6GB in the end (delta: 9.4GB). Free memory was 149.8MB in the beginning and 8.2GB in the end (delta: -8.0GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2024-06-03 19:01:40,411 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 90.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 19:01:40,411 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 19:01:40,411 INFO L158 Benchmark]: CACSL2BoogieTranslator took 406.00ms. Allocated memory is still 186.6MB. Free memory was 149.8MB in the beginning and 134.2MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-06-03 19:01:40,412 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.26ms. Allocated memory is still 186.6MB. Free memory was 134.2MB in the beginning and 131.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-03 19:01:40,412 INFO L158 Benchmark]: Boogie Preprocessor took 79.43ms. Allocated memory is still 186.6MB. Free memory was 131.8MB in the beginning and 128.8MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-03 19:01:40,412 INFO L158 Benchmark]: RCFGBuilder took 904.78ms. Allocated memory is still 186.6MB. Free memory was 128.8MB in the beginning and 110.4MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-06-03 19:01:40,413 INFO L158 Benchmark]: TraceAbstraction took 14066.04ms. Allocated memory was 186.6MB in the beginning and 9.6GB in the end (delta: 9.4GB). Free memory was 109.9MB in the beginning and 8.2GB in the end (delta: -8.1GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2024-06-03 19:01:40,415 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 117.4MB. Free memory is still 90.6MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 406.00ms. Allocated memory is still 186.6MB. Free memory was 149.8MB in the beginning and 134.2MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.26ms. Allocated memory is still 186.6MB. Free memory was 134.2MB in the beginning and 131.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.43ms. Allocated memory is still 186.6MB. Free memory was 131.8MB in the beginning and 128.8MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 904.78ms. Allocated memory is still 186.6MB. Free memory was 128.8MB in the beginning and 110.4MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 14066.04ms. Allocated memory was 186.6MB in the beginning and 9.6GB in the end (delta: 9.4GB). Free memory was 109.9MB in the beginning and 8.2GB in the end (delta: -8.1GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 102]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 103]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 193]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 194]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 165]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 166]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 13 procedures, 141 locations, 20 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: 13.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 13.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 505 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 457 mSDsluCounter, 98 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 62 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1097 IncrementalHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 36 mSDtfsCounter, 1097 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=247occurred in iteration=2, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 178 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-03 19:01:40,445 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