./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-05-07_14-17-48.files/mutex-meet/race-1_2-join.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b44c8288 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i ./goblint.2024-05-07_14-17-48.files/mutex-meet/race-1_2-join.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-b44c828-m [2024-05-12 12:24:45,308 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-12 12:24:45,379 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-05-12 12:24:45,384 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-12 12:24:45,384 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-12 12:24:45,409 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-12 12:24:45,409 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-12 12:24:45,409 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-12 12:24:45,410 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-05-12 12:24:45,413 INFO L153 SettingsManager]: * Use memory slicer=true [2024-05-12 12:24:45,413 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-12 12:24:45,414 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-12 12:24:45,414 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-12 12:24:45,415 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-12 12:24:45,416 INFO L153 SettingsManager]: * Use SBE=true [2024-05-12 12:24:45,416 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-12 12:24:45,416 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-12 12:24:45,416 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-12 12:24:45,417 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-12 12:24:45,417 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-12 12:24:45,417 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-12 12:24:45,417 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-12 12:24:45,418 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-12 12:24:45,418 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-12 12:24:45,418 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-05-12 12:24:45,418 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-12 12:24:45,419 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-12 12:24:45,419 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-12 12:24:45,419 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-12 12:24:45,420 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-12 12:24:45,420 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-05-12 12:24:45,421 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-12 12:24:45,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 12:24:45,421 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-12 12:24:45,421 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-12 12:24:45,421 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-05-12 12:24:45,422 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-12 12:24:45,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-12 12:24:45,422 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-12 12:24:45,422 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-05-12 12:24:45,422 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-12 12:24:45,423 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-05-12 12:24:45,423 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-05-12 12:24:45,423 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-05-12 12:24:45,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-12 12:24:45,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-12 12:24:45,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-12 12:24:45,660 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-12 12:24:45,660 INFO L274 PluginConnector]: CDTParser initialized [2024-05-12 12:24:45,661 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i [2024-05-12 12:24:46,659 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-12 12:24:46,907 INFO L384 CDTParser]: Found 1 translation units. [2024-05-12 12:24:46,908 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i [2024-05-12 12:24:46,930 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c0910758/82eead9e89ec4ad8b43dd01b04cf146a/FLAG7f82b0e60 [2024-05-12 12:24:47,239 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c0910758/82eead9e89ec4ad8b43dd01b04cf146a [2024-05-12 12:24:47,241 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-05-12 12:24:47,242 INFO L274 PluginConnector]: Witness Parser initialized [2024-05-12 12:24:47,243 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-07_14-17-48.files/mutex-meet/race-1_2-join.yml/witness.yml [2024-05-12 12:24:47,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-12 12:24:47,324 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-12 12:24:47,325 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-12 12:24:47,325 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-12 12:24:47,329 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-12 12:24:47,329 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 12:24:47" (1/2) ... [2024-05-12 12:24:47,330 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ed941a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 12:24:47, skipping insertion in model container [2024-05-12 12:24:47,330 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 12:24:47" (1/2) ... [2024-05-12 12:24:47,337 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4477b3f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 12:24:47, skipping insertion in model container [2024-05-12 12:24:47,337 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 12:24:47" (2/2) ... [2024-05-12 12:24:47,338 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ed941a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:24:47, skipping insertion in model container [2024-05-12 12:24:47,338 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 12:24:47" (2/2) ... [2024-05-12 12:24:47,338 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-05-12 12:24:47,367 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-05-12 12:24:47,369 INFO L97 edCorrectnessWitness]: Location invariant before [L1713-L1713] ! multithreaded || (((((0 <= pdev && 1 <= pdev) && pdev <= 6) && pdev <= 127) && pdev != 0) && (((pdev == 1 || pdev == 2) || pdev == 5) || pdev == 6)) [2024-05-12 12:24:47,369 INFO L103 edCorrectnessWitness]: ghost_variable mutex_locked = 0 [2024-05-12 12:24:47,369 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-05-12 12:24:47,369 INFO L106 edCorrectnessWitness]: ghost_update [L1704-L1704] mutex_locked = 0; [2024-05-12 12:24:47,369 INFO L106 edCorrectnessWitness]: ghost_update [L1700-L1700] mutex_locked = 1; [2024-05-12 12:24:47,370 INFO L106 edCorrectnessWitness]: ghost_update [L1712-L1712] multithreaded = 1; [2024-05-12 12:24:47,413 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-12 12:24:47,933 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i[76153,76166] [2024-05-12 12:24:47,955 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 12:24:47,966 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local [2024-05-12 12:24:48,073 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i[76153,76166] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-05-12 12:24:48,094 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 12:24:48,174 INFO L206 MainTranslator]: Completed translation [2024-05-12 12:24:48,175 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:24:48 WrapperNode [2024-05-12 12:24:48,175 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-12 12:24:48,175 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-12 12:24:48,176 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-12 12:24:48,176 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-12 12:24:48,181 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 12.05 12:24:48" (1/1) ... [2024-05-12 12:24:48,206 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 12.05 12:24:48" (1/1) ... [2024-05-12 12:24:48,226 INFO L138 Inliner]: procedures = 483, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2024-05-12 12:24:48,227 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-12 12:24:48,227 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-12 12:24:48,227 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-12 12:24:48,228 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-12 12:24:48,236 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:24:48" (1/1) ... [2024-05-12 12:24:48,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:24:48" (1/1) ... [2024-05-12 12:24:48,238 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:24:48" (1/1) ... [2024-05-12 12:24:48,249 INFO L175 MemorySlicer]: Split 11 memory accesses to 4 slices as follows [2, 3, 5, 1]. 45 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 1, 5, 0]. The 2 writes are split as follows [0, 1, 0, 1]. [2024-05-12 12:24:48,249 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:24:48" (1/1) ... [2024-05-12 12:24:48,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:24:48" (1/1) ... [2024-05-12 12:24:48,267 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:24:48" (1/1) ... [2024-05-12 12:24:48,280 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:24:48" (1/1) ... [2024-05-12 12:24:48,283 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:24:48" (1/1) ... [2024-05-12 12:24:48,284 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:24:48" (1/1) ... [2024-05-12 12:24:48,288 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-12 12:24:48,288 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-12 12:24:48,288 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-12 12:24:48,289 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-12 12:24:48,289 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:24:48" (1/1) ... [2024-05-12 12:24:48,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 12:24:48,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-05-12 12:24:48,330 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-05-12 12:24:48,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-05-12 12:24:48,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-05-12 12:24:48,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-12 12:24:48,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-05-12 12:24:48,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-05-12 12:24:48,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-05-12 12:24:48,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-05-12 12:24:48,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-05-12 12:24:48,367 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-05-12 12:24:48,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-12 12:24:48,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-05-12 12:24:48,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-05-12 12:24:48,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-05-12 12:24:48,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-05-12 12:24:48,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-12 12:24:48,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-12 12:24:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-12 12:24:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-05-12 12:24:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-05-12 12:24:48,372 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-05-12 12:24:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-05-12 12:24:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-05-12 12:24:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-05-12 12:24:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-05-12 12:24:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-05-12 12:24:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-05-12 12:24:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-05-12 12:24:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-05-12 12:24:48,374 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-12 12:24:48,668 INFO L244 CfgBuilder]: Building ICFG [2024-05-12 12:24:48,670 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-12 12:24:48,819 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-05-12 12:24:48,819 INFO L293 CfgBuilder]: Performing block encoding [2024-05-12 12:24:48,888 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-12 12:24:48,891 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-05-12 12:24:48,891 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 12:24:48 BoogieIcfgContainer [2024-05-12 12:24:48,891 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-12 12:24:48,894 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-12 12:24:48,894 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-12 12:24:48,896 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-12 12:24:48,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.05 12:24:47" (1/4) ... [2024-05-12 12:24:48,897 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f0f4a38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.05 12:24:48, skipping insertion in model container [2024-05-12 12:24:48,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 12:24:47" (2/4) ... [2024-05-12 12:24:48,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f0f4a38 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 12.05 12:24:48, skipping insertion in model container [2024-05-12 12:24:48,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 12:24:48" (3/4) ... [2024-05-12 12:24:48,900 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f0f4a38 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 12.05 12:24:48, skipping insertion in model container [2024-05-12 12:24:48,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 12:24:48" (4/4) ... [2024-05-12 12:24:48,901 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2024-05-12 12:24:48,914 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-12 12:24:48,914 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-05-12 12:24:48,914 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-12 12:24:48,938 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-05-12 12:24:48,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 41 transitions, 89 flow [2024-05-12 12:24:48,998 INFO L124 PetriNetUnfolderBase]: 4/44 cut-off events. [2024-05-12 12:24:48,998 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-05-12 12:24:49,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 44 events. 4/44 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 19. Up to 3 conditions per place. [2024-05-12 12:24:49,002 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 41 transitions, 89 flow [2024-05-12 12:24:49,005 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 32 transitions, 70 flow [2024-05-12 12:24:49,011 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-12 12:24:49,017 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;@12e8d03e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-12 12:24:49,017 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-05-12 12:24:49,020 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-05-12 12:24:49,020 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2024-05-12 12:24:49,020 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-05-12 12:24:49,021 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 12:24:49,021 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-05-12 12:24:49,022 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-05-12 12:24:49,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 12:24:49,026 INFO L85 PathProgramCache]: Analyzing trace with hash 293841, now seen corresponding path program 1 times [2024-05-12 12:24:49,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 12:24:49,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321296414] [2024-05-12 12:24:49,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 12:24:49,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 12:24:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 12:24:49,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 12:24:49,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 12:24:49,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321296414] [2024-05-12 12:24:49,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321296414] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 12:24:49,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 12:24:49,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-12 12:24:49,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025366355] [2024-05-12 12:24:49,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 12:24:49,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 12:24:49,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 12:24:49,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 12:24:49,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 12:24:49,378 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-05-12 12:24:49,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 32 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 12:24:49,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 12:24:49,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-05-12 12:24:49,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 12:24:49,428 INFO L124 PetriNetUnfolderBase]: 15/63 cut-off events. [2024-05-12 12:24:49,429 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-05-12 12:24:49,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 63 events. 15/63 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 167 event pairs, 15 based on Foata normal form. 2/55 useless extension candidates. Maximal degree in co-relation 91. Up to 45 conditions per place. [2024-05-12 12:24:49,430 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 10 selfloop transitions, 2 changer transitions 7/25 dead transitions. [2024-05-12 12:24:49,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 25 transitions, 92 flow [2024-05-12 12:24:49,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 12:24:49,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 12:24:49,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2024-05-12 12:24:49,438 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43902439024390244 [2024-05-12 12:24:49,440 INFO L175 Difference]: Start difference. First operand has 35 places, 32 transitions, 70 flow. Second operand 3 states and 54 transitions. [2024-05-12 12:24:49,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 25 transitions, 92 flow [2024-05-12 12:24:49,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 25 transitions, 88 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-05-12 12:24:49,443 INFO L231 Difference]: Finished difference. Result has 29 places, 18 transitions, 41 flow [2024-05-12 12:24:49,444 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=41, PETRI_PLACES=29, PETRI_TRANSITIONS=18} [2024-05-12 12:24:49,446 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -6 predicate places. [2024-05-12 12:24:49,446 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 18 transitions, 41 flow [2024-05-12 12:24:49,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 12:24:49,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 12:24:49,447 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 12:24:49,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-12 12:24:49,447 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-05-12 12:24:49,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 12:24:49,448 INFO L85 PathProgramCache]: Analyzing trace with hash 851774402, now seen corresponding path program 1 times [2024-05-12 12:24:49,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 12:24:49,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547857183] [2024-05-12 12:24:49,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 12:24:49,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 12:24:49,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 12:24:49,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 12:24:49,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 12:24:49,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547857183] [2024-05-12 12:24:49,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547857183] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 12:24:49,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 12:24:49,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-05-12 12:24:49,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511387874] [2024-05-12 12:24:49,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 12:24:49,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 12:24:49,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 12:24:49,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 12:24:49,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 12:24:49,616 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-05-12 12:24:49,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 18 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 12:24:49,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 12:24:49,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-05-12 12:24:49,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 12:24:49,649 INFO L124 PetriNetUnfolderBase]: 14/47 cut-off events. [2024-05-12 12:24:49,649 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-05-12 12:24:49,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 47 events. 14/47 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 90 event pairs, 6 based on Foata normal form. 2/48 useless extension candidates. Maximal degree in co-relation 85. Up to 33 conditions per place. [2024-05-12 12:24:49,652 INFO L140 encePairwiseOnDemand]: 37/41 looper letters, 15 selfloop transitions, 3 changer transitions 0/22 dead transitions. [2024-05-12 12:24:49,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 22 transitions, 85 flow [2024-05-12 12:24:49,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 12:24:49,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 12:24:49,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2024-05-12 12:24:49,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4959349593495935 [2024-05-12 12:24:49,655 INFO L175 Difference]: Start difference. First operand has 29 places, 18 transitions, 41 flow. Second operand 3 states and 61 transitions. [2024-05-12 12:24:49,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 22 transitions, 85 flow [2024-05-12 12:24:49,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 22 transitions, 81 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-05-12 12:24:49,657 INFO L231 Difference]: Finished difference. Result has 23 places, 20 transitions, 56 flow [2024-05-12 12:24:49,658 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=23, PETRI_TRANSITIONS=20} [2024-05-12 12:24:49,659 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -12 predicate places. [2024-05-12 12:24:49,659 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 20 transitions, 56 flow [2024-05-12 12:24:49,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 12:24:49,660 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 12:24:49,660 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 12:24:49,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-12 12:24:49,660 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-05-12 12:24:49,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 12:24:49,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1783544271, now seen corresponding path program 1 times [2024-05-12 12:24:49,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 12:24:49,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778569424] [2024-05-12 12:24:49,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 12:24:49,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 12:24:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 12:24:49,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 12:24:49,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 12:24:49,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778569424] [2024-05-12 12:24:49,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778569424] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 12:24:49,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 12:24:49,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-12 12:24:49,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787988517] [2024-05-12 12:24:49,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 12:24:49,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 12:24:49,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 12:24:49,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 12:24:49,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 12:24:49,768 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-05-12 12:24:49,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 20 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 12:24:49,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 12:24:49,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-05-12 12:24:49,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 12:24:49,803 INFO L124 PetriNetUnfolderBase]: 11/46 cut-off events. [2024-05-12 12:24:49,804 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-05-12 12:24:49,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 46 events. 11/46 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 95 event pairs, 8 based on Foata normal form. 5/50 useless extension candidates. Maximal degree in co-relation 41. Up to 33 conditions per place. [2024-05-12 12:24:49,805 INFO L140 encePairwiseOnDemand]: 38/41 looper letters, 14 selfloop transitions, 2 changer transitions 3/23 dead transitions. [2024-05-12 12:24:49,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 23 transitions, 100 flow [2024-05-12 12:24:49,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 12:24:49,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 12:24:49,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2024-05-12 12:24:49,807 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4959349593495935 [2024-05-12 12:24:49,807 INFO L175 Difference]: Start difference. First operand has 23 places, 20 transitions, 56 flow. Second operand 3 states and 61 transitions. [2024-05-12 12:24:49,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 23 transitions, 100 flow [2024-05-12 12:24:49,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 23 transitions, 97 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-05-12 12:24:49,809 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 57 flow [2024-05-12 12:24:49,809 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2024-05-12 12:24:49,810 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -10 predicate places. [2024-05-12 12:24:49,810 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 57 flow [2024-05-12 12:24:49,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 12:24:49,811 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 12:24:49,811 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 12:24:49,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-12 12:24:49,813 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-05-12 12:24:49,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 12:24:49,814 INFO L85 PathProgramCache]: Analyzing trace with hash 126904068, now seen corresponding path program 1 times [2024-05-12 12:24:49,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 12:24:49,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173927596] [2024-05-12 12:24:49,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 12:24:49,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 12:24:49,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 12:24:49,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 12:24:49,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 12:24:49,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173927596] [2024-05-12 12:24:49,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173927596] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 12:24:49,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 12:24:49,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-12 12:24:49,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393630204] [2024-05-12 12:24:49,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 12:24:49,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 12:24:49,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 12:24:49,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 12:24:49,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 12:24:49,908 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-05-12 12:24:49,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 12:24:49,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 12:24:49,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-05-12 12:24:49,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 12:24:49,936 INFO L124 PetriNetUnfolderBase]: 7/35 cut-off events. [2024-05-12 12:24:49,937 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-05-12 12:24:49,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 35 events. 7/35 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 4 based on Foata normal form. 3/37 useless extension candidates. Maximal degree in co-relation 47. Up to 17 conditions per place. [2024-05-12 12:24:49,938 INFO L140 encePairwiseOnDemand]: 39/41 looper letters, 12 selfloop transitions, 1 changer transitions 2/19 dead transitions. [2024-05-12 12:24:49,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 19 transitions, 85 flow [2024-05-12 12:24:49,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 12:24:49,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 12:24:49,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2024-05-12 12:24:49,941 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4634146341463415 [2024-05-12 12:24:49,941 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 57 flow. Second operand 3 states and 57 transitions. [2024-05-12 12:24:49,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 19 transitions, 85 flow [2024-05-12 12:24:49,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 19 transitions, 78 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-05-12 12:24:49,943 INFO L231 Difference]: Finished difference. Result has 24 places, 17 transitions, 45 flow [2024-05-12 12:24:49,944 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=45, PETRI_PLACES=24, PETRI_TRANSITIONS=17} [2024-05-12 12:24:49,945 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -11 predicate places. [2024-05-12 12:24:49,945 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 45 flow [2024-05-12 12:24:49,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 12:24:49,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 12:24:49,946 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 12:24:49,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-05-12 12:24:49,946 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-05-12 12:24:49,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 12:24:49,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1216150673, now seen corresponding path program 1 times [2024-05-12 12:24:49,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 12:24:49,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862258377] [2024-05-12 12:24:49,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 12:24:49,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 12:24:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-12 12:24:49,984 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-12 12:24:49,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-12 12:24:50,026 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-12 12:24:50,026 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-05-12 12:24:50,027 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2024-05-12 12:24:50,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-05-12 12:24:50,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2024-05-12 12:24:50,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 6 remaining) [2024-05-12 12:24:50,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2024-05-12 12:24:50,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-05-12 12:24:50,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-05-12 12:24:50,036 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-05-12 12:24:50,040 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-05-12 12:24:50,040 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-05-12 12:24:50,072 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-05-12 12:24:50,073 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-05-12 12:24:50,077 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.05 12:24:50 BasicIcfg [2024-05-12 12:24:50,077 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-05-12 12:24:50,078 INFO L158 Benchmark]: Toolchain (without parser) took 2753.64ms. Allocated memory was 125.8MB in the beginning and 178.3MB in the end (delta: 52.4MB). Free memory was 65.1MB in the beginning and 65.6MB in the end (delta: -502.7kB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. [2024-05-12 12:24:50,079 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 87.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-05-12 12:24:50,081 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 125.8MB. Free memory is still 67.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-05-12 12:24:50,081 INFO L158 Benchmark]: CACSL2BoogieTranslator took 849.83ms. Allocated memory is still 125.8MB. Free memory was 64.9MB in the beginning and 53.3MB in the end (delta: 11.5MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2024-05-12 12:24:50,081 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.42ms. Allocated memory is still 125.8MB. Free memory was 53.3MB in the beginning and 50.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-05-12 12:24:50,081 INFO L158 Benchmark]: Boogie Preprocessor took 60.60ms. Allocated memory is still 125.8MB. Free memory was 50.1MB in the beginning and 46.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-05-12 12:24:50,082 INFO L158 Benchmark]: RCFGBuilder took 603.05ms. Allocated memory was 125.8MB in the beginning and 178.3MB in the end (delta: 52.4MB). Free memory was 46.3MB in the beginning and 117.6MB in the end (delta: -71.3MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2024-05-12 12:24:50,082 INFO L158 Benchmark]: TraceAbstraction took 1183.86ms. Allocated memory is still 178.3MB. Free memory was 116.5MB in the beginning and 65.6MB in the end (delta: 51.0MB). Peak memory consumption was 52.0MB. Max. memory is 16.1GB. [2024-05-12 12:24:50,084 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 87.8MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 125.8MB. Free memory is still 67.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 849.83ms. Allocated memory is still 125.8MB. Free memory was 64.9MB in the beginning and 53.3MB in the end (delta: 11.5MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.42ms. Allocated memory is still 125.8MB. Free memory was 53.3MB in the beginning and 50.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.60ms. Allocated memory is still 125.8MB. Free memory was 50.1MB in the beginning and 46.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 603.05ms. Allocated memory was 125.8MB in the beginning and 178.3MB in the end (delta: 52.4MB). Free memory was 46.3MB in the beginning and 117.6MB in the end (delta: -71.3MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1183.86ms. Allocated memory is still 178.3MB. Free memory was 116.5MB in the beginning and 65.6MB in the end (delta: 51.0MB). Peak memory consumption was 52.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1] 0 //@ ghost int mutex_locked = 0; [L1] 0 //@ ghost int multithreaded = 0; [L1696] 0 pthread_t t1; [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1734] CALL 0 module_init() [L1709] 0 pdev = 1 [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, mutex={4:0}, pdev=1, t1={3:0}] [L1710] RET 0 ldv_assert(pdev==1) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] 0 //@ ghost multithreaded = 1; [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [\old(arg)={0:0}, mutex={4:0}, pdev=1, t1={3:0}] [L1700] 1 //@ ghost mutex_locked = 1; [L1713] 0 //@ assert (!multithreaded || ((((((0 <= pdev) && (1 <= pdev)) && (pdev <= 6)) && (pdev <= 127)) && (pdev != 0)) && ((((pdev == 1) || (pdev == 2)) || (pdev == 5)) || (pdev == 6)))); VAL [\old(arg)={0:0}, arg={0:0}, mutex={4:0}, pdev=1, t1={3:0}] [L1714] 0 pdev = 2 VAL [\old(arg)={0:0}, arg={0:0}, mutex={4:0}, pdev=2, t1={3:0}] [L1702] 1 pdev = 6 VAL [\old(arg)={0:0}, arg={0:0}, mutex={4:0}, pdev=6, t1={3:0}] [L1717] CALL 0 ldv_assert(pdev==2) [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [\old(arg)={0:0}, \old(expression)=0, arg={0:0}, expression=0, mutex={4:0}, pdev=6, t1={3:0}] - UnprovableResult [Line: 1695]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1713]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 45 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 111 IncrementalHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 15 mSDtfsCounter, 111 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 57 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 RESULT: Ultimate proved your program to be incorrect! [2024-05-12 12:24:50,117 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE