./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/stateful01-1.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-05-07_14-17-48.files/mutex-meet/stateful01-1.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/pthread/stateful01-1.i ./goblint.2024-05-07_14-17-48.files/mutex-meet/stateful01-1.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 11:10:37,835 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-12 11:10:37,882 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-05-12 11:10:37,892 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-12 11:10:37,893 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-12 11:10:37,914 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-12 11:10:37,917 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-12 11:10:37,918 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-12 11:10:37,918 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-05-12 11:10:37,923 INFO L153 SettingsManager]: * Use memory slicer=true [2024-05-12 11:10:37,923 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-12 11:10:37,923 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-12 11:10:37,925 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-12 11:10:37,926 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-12 11:10:37,926 INFO L153 SettingsManager]: * Use SBE=true [2024-05-12 11:10:37,926 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-12 11:10:37,927 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-12 11:10:37,927 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-12 11:10:37,927 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-12 11:10:37,927 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-12 11:10:37,927 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-12 11:10:37,929 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-12 11:10:37,929 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-12 11:10:37,929 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-12 11:10:37,929 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-05-12 11:10:37,930 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-12 11:10:37,930 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-12 11:10:37,930 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-12 11:10:37,931 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-12 11:10:37,931 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-12 11:10:37,931 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-05-12 11:10:37,932 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-12 11:10:37,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 11:10:37,932 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-12 11:10:37,932 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-12 11:10:37,932 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-05-12 11:10:37,933 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-12 11:10:37,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-12 11:10:37,933 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-12 11:10:37,933 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-05-12 11:10:37,933 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-12 11:10:37,933 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-05-12 11:10:37,934 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-05-12 11:10:37,934 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-05-12 11:10:38,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-12 11:10:38,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-12 11:10:38,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-12 11:10:38,251 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-05-12 11:10:38,251 INFO L274 PluginConnector]: Witness Parser initialized [2024-05-12 11:10:38,252 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-07_14-17-48.files/mutex-meet/stateful01-1.yml/witness.yml [2024-05-12 11:10:38,331 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-12 11:10:38,331 INFO L274 PluginConnector]: CDTParser initialized [2024-05-12 11:10:38,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-1.i [2024-05-12 11:10:39,313 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-12 11:10:39,527 INFO L384 CDTParser]: Found 1 translation units. [2024-05-12 11:10:39,535 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i [2024-05-12 11:10:39,550 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02eba40e4/df475e9b82df472a905d44400bbfa1e2/FLAGee77f7a52 [2024-05-12 11:10:39,567 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02eba40e4/df475e9b82df472a905d44400bbfa1e2 [2024-05-12 11:10:39,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-12 11:10:39,569 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-12 11:10:39,572 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-12 11:10:39,572 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-12 11:10:39,576 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-12 11:10:39,577 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 11:10:38" (1/2) ... [2024-05-12 11:10:39,578 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62dcbe8d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 11:10:39, skipping insertion in model container [2024-05-12 11:10:39,578 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 11:10:38" (1/2) ... [2024-05-12 11:10:39,581 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@a2f6db7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 11:10:39, skipping insertion in model container [2024-05-12 11:10:39,581 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 11:10:39" (2/2) ... [2024-05-12 11:10:39,581 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62dcbe8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 11:10:39, skipping insertion in model container [2024-05-12 11:10:39,581 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 11:10:39" (2/2) ... [2024-05-12 11:10:39,582 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-05-12 11:10:39,609 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-05-12 11:10:39,610 INFO L97 edCorrectnessWitness]: Location invariant before [L723-L723] (! multithreaded || (ma_locked || (0 <= data1 && data1 != 0))) && (! multithreaded || ((0 <= data1 && 10 <= data1) && data1 != 0)) [2024-05-12 11:10:39,611 INFO L97 edCorrectnessWitness]: Location invariant before [L722-L722] (! multithreaded || (ma_locked || (0 <= data1 && data1 != 0))) && (! multithreaded || ((0 <= data1 && 10 <= data1) && data1 != 0)) [2024-05-12 11:10:39,611 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-05-12 11:10:39,611 INFO L103 edCorrectnessWitness]: ghost_variable ma_locked = 0 [2024-05-12 11:10:39,611 INFO L106 edCorrectnessWitness]: ghost_update [L696-L696] ma_locked = 1; [2024-05-12 11:10:39,612 INFO L106 edCorrectnessWitness]: ghost_update [L701-L701] ma_locked = 0; [2024-05-12 11:10:39,612 INFO L106 edCorrectnessWitness]: ghost_update [L709-L709] ma_locked = 1; [2024-05-12 11:10:39,612 INFO L106 edCorrectnessWitness]: ghost_update [L721-L721] multithreaded = 1; [2024-05-12 11:10:39,612 INFO L106 edCorrectnessWitness]: ghost_update [L706-L706] ma_locked = 1; [2024-05-12 11:10:39,612 INFO L106 edCorrectnessWitness]: ghost_update [L708-L708] ma_locked = 0; [2024-05-12 11:10:39,612 INFO L106 edCorrectnessWitness]: ghost_update [L711-L711] ma_locked = 0; [2024-05-12 11:10:39,612 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] ma_locked = 1; [2024-05-12 11:10:39,613 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] ma_locked = 0; [2024-05-12 11:10:39,663 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-12 11:10:39,936 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i[30826,30839] [2024-05-12 11:10:39,940 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 11:10:39,947 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-05-12 11:10:40,024 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i[30826,30839] [2024-05-12 11:10:40,027 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 11:10:40,055 INFO L206 MainTranslator]: Completed translation [2024-05-12 11:10:40,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 11:10:40 WrapperNode [2024-05-12 11:10:40,060 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-12 11:10:40,061 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-12 11:10:40,061 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-12 11:10:40,061 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-12 11:10:40,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 11:10:40" (1/1) ... [2024-05-12 11:10:40,083 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 11:10:40" (1/1) ... [2024-05-12 11:10:40,104 INFO L138 Inliner]: procedures = 169, calls = 38, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 68 [2024-05-12 11:10:40,104 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-12 11:10:40,105 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-12 11:10:40,105 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-12 11:10:40,105 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-12 11:10:40,114 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 11:10:40" (1/1) ... [2024-05-12 11:10:40,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 11:10:40" (1/1) ... [2024-05-12 11:10:40,121 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 11:10:40" (1/1) ... [2024-05-12 11:10:40,169 INFO L175 MemorySlicer]: Split 16 memory accesses to 5 slices as follows [2, 5, 2, 2, 5]. 31 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 0, 0, 5]. The 2 writes are split as follows [0, 0, 1, 1, 0]. [2024-05-12 11:10:40,188 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 11:10:40" (1/1) ... [2024-05-12 11:10:40,188 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 11:10:40" (1/1) ... [2024-05-12 11:10:40,192 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 11:10:40" (1/1) ... [2024-05-12 11:10:40,193 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 11:10:40" (1/1) ... [2024-05-12 11:10:40,207 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 11:10:40" (1/1) ... [2024-05-12 11:10:40,209 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 11:10:40" (1/1) ... [2024-05-12 11:10:40,211 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-12 11:10:40,221 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-12 11:10:40,222 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-12 11:10:40,222 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-12 11:10:40,222 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 11:10:40" (1/1) ... [2024-05-12 11:10:40,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 11:10:40,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-05-12 11:10:40,259 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 11:10:40,279 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 11:10:40,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-05-12 11:10:40,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-05-12 11:10:40,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-05-12 11:10:40,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-05-12 11:10:40,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-05-12 11:10:40,301 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-05-12 11:10:40,302 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-05-12 11:10:40,302 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-05-12 11:10:40,302 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-05-12 11:10:40,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-05-12 11:10:40,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-05-12 11:10:40,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-05-12 11:10:40,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-05-12 11:10:40,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-05-12 11:10:40,303 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-05-12 11:10:40,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-12 11:10:40,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-12 11:10:40,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-12 11:10:40,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-05-12 11:10:40,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-05-12 11:10:40,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-05-12 11:10:40,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-05-12 11:10:40,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-05-12 11:10:40,304 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-05-12 11:10:40,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-12 11:10:40,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-12 11:10:40,305 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 11:10:40,396 INFO L244 CfgBuilder]: Building ICFG [2024-05-12 11:10:40,399 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-12 11:10:40,606 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-05-12 11:10:40,606 INFO L293 CfgBuilder]: Performing block encoding [2024-05-12 11:10:40,717 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-12 11:10:40,717 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-05-12 11:10:40,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 11:10:40 BoogieIcfgContainer [2024-05-12 11:10:40,717 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-12 11:10:40,719 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-12 11:10:40,719 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-12 11:10:40,722 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-12 11:10:40,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 11:10:38" (1/4) ... [2024-05-12 11:10:40,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c3d013 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 12.05 11:10:40, skipping insertion in model container [2024-05-12 11:10:40,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.05 11:10:39" (2/4) ... [2024-05-12 11:10:40,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c3d013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.05 11:10:40, skipping insertion in model container [2024-05-12 11:10:40,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 11:10:40" (3/4) ... [2024-05-12 11:10:40,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c3d013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.05 11:10:40, skipping insertion in model container [2024-05-12 11:10:40,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 11:10:40" (4/4) ... [2024-05-12 11:10:40,724 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2024-05-12 11:10:40,736 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-12 11:10:40,737 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-05-12 11:10:40,737 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-12 11:10:40,774 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-05-12 11:10:40,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 40 transitions, 94 flow [2024-05-12 11:10:40,831 INFO L124 PetriNetUnfolderBase]: 1/38 cut-off events. [2024-05-12 11:10:40,831 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-05-12 11:10:40,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 38 events. 1/38 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2024-05-12 11:10:40,833 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 40 transitions, 94 flow [2024-05-12 11:10:40,836 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 35 transitions, 82 flow [2024-05-12 11:10:40,849 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-12 11:10:40,856 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;@4a25169c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-12 11:10:40,856 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-05-12 11:10:40,861 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-05-12 11:10:40,861 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-05-12 11:10:40,862 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-05-12 11:10:40,862 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 11:10:40,862 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-05-12 11:10:40,863 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-12 11:10:40,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 11:10:40,869 INFO L85 PathProgramCache]: Analyzing trace with hash -860319532, now seen corresponding path program 1 times [2024-05-12 11:10:40,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 11:10:40,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676416432] [2024-05-12 11:10:40,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 11:10:40,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 11:10:40,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 11:10:41,110 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 11:10:41,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 11:10:41,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676416432] [2024-05-12 11:10:41,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676416432] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 11:10:41,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 11:10:41,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-05-12 11:10:41,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998202041] [2024-05-12 11:10:41,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 11:10:41,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 11:10:41,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 11:10:41,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 11:10:41,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 11:10:41,144 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 40 [2024-05-12 11:10:41,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 35 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 11:10:41,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 11:10:41,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 40 [2024-05-12 11:10:41,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 11:10:41,270 INFO L124 PetriNetUnfolderBase]: 308/572 cut-off events. [2024-05-12 11:10:41,270 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-05-12 11:10:41,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1148 conditions, 572 events. 308/572 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2333 event pairs, 308 based on Foata normal form. 0/563 useless extension candidates. Maximal degree in co-relation 1059. Up to 545 conditions per place. [2024-05-12 11:10:41,275 INFO L140 encePairwiseOnDemand]: 37/40 looper letters, 26 selfloop transitions, 1 changer transitions 0/33 dead transitions. [2024-05-12 11:10:41,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 33 transitions, 132 flow [2024-05-12 11:10:41,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 11:10:41,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 11:10:41,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2024-05-12 11:10:41,284 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2024-05-12 11:10:41,285 INFO L175 Difference]: Start difference. First operand has 42 places, 35 transitions, 82 flow. Second operand 3 states and 56 transitions. [2024-05-12 11:10:41,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 33 transitions, 132 flow [2024-05-12 11:10:41,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 33 transitions, 124 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-05-12 11:10:41,289 INFO L231 Difference]: Finished difference. Result has 38 places, 33 transitions, 72 flow [2024-05-12 11:10:41,290 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=38, PETRI_TRANSITIONS=33} [2024-05-12 11:10:41,293 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -4 predicate places. [2024-05-12 11:10:41,293 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 33 transitions, 72 flow [2024-05-12 11:10:41,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 11:10:41,293 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 11:10:41,293 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 11:10:41,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-12 11:10:41,294 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-12 11:10:41,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 11:10:41,294 INFO L85 PathProgramCache]: Analyzing trace with hash -2138043269, now seen corresponding path program 1 times [2024-05-12 11:10:41,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 11:10:41,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362239642] [2024-05-12 11:10:41,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 11:10:41,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 11:10:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 11:10:41,434 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 11:10:41,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 11:10:41,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362239642] [2024-05-12 11:10:41,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362239642] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 11:10:41,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 11:10:41,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-12 11:10:41,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154754536] [2024-05-12 11:10:41,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 11:10:41,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 11:10:41,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 11:10:41,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 11:10:41,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 11:10:41,438 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 40 [2024-05-12 11:10:41,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 33 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 11:10:41,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 11:10:41,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 40 [2024-05-12 11:10:41,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 11:10:41,519 INFO L124 PetriNetUnfolderBase]: 180/379 cut-off events. [2024-05-12 11:10:41,519 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-05-12 11:10:41,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 760 conditions, 379 events. 180/379 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1466 event pairs, 72 based on Foata normal form. 48/419 useless extension candidates. Maximal degree in co-relation 754. Up to 224 conditions per place. [2024-05-12 11:10:41,521 INFO L140 encePairwiseOnDemand]: 32/40 looper letters, 27 selfloop transitions, 8 changer transitions 0/42 dead transitions. [2024-05-12 11:10:41,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 42 transitions, 162 flow [2024-05-12 11:10:41,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 11:10:41,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 11:10:41,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2024-05-12 11:10:41,523 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-05-12 11:10:41,523 INFO L175 Difference]: Start difference. First operand has 38 places, 33 transitions, 72 flow. Second operand 3 states and 75 transitions. [2024-05-12 11:10:41,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 42 transitions, 162 flow [2024-05-12 11:10:41,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 42 transitions, 161 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-05-12 11:10:41,525 INFO L231 Difference]: Finished difference. Result has 39 places, 33 transitions, 87 flow [2024-05-12 11:10:41,525 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=39, PETRI_TRANSITIONS=33} [2024-05-12 11:10:41,525 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -3 predicate places. [2024-05-12 11:10:41,526 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 33 transitions, 87 flow [2024-05-12 11:10:41,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 11:10:41,526 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 11:10:41,526 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 11:10:41,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-12 11:10:41,526 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-12 11:10:41,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 11:10:41,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1224431237, now seen corresponding path program 2 times [2024-05-12 11:10:41,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 11:10:41,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35201354] [2024-05-12 11:10:41,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 11:10:41,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 11:10:41,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-12 11:10:41,559 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-12 11:10:41,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-12 11:10:41,591 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-12 11:10:41,592 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-05-12 11:10:41,592 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-05-12 11:10:41,594 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 5 remaining) [2024-05-12 11:10:41,594 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 5 remaining) [2024-05-12 11:10:41,594 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-05-12 11:10:41,594 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-05-12 11:10:41,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-12 11:10:41,595 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2024-05-12 11:10:41,598 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-05-12 11:10:41,599 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-05-12 11:10:41,671 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-05-12 11:10:41,671 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-05-12 11:10:41,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.05 11:10:41 BasicIcfg [2024-05-12 11:10:41,672 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-05-12 11:10:41,673 INFO L158 Benchmark]: Toolchain (without parser) took 2103.80ms. Allocated memory was 148.9MB in the beginning and 211.8MB in the end (delta: 62.9MB). Free memory was 69.4MB in the beginning and 177.3MB in the end (delta: -107.9MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2024-05-12 11:10:41,673 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 148.9MB. Free memory is still 120.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-05-12 11:10:41,673 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 148.9MB. Free memory is still 116.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-05-12 11:10:41,676 INFO L158 Benchmark]: CACSL2BoogieTranslator took 488.51ms. Allocated memory is still 148.9MB. Free memory was 69.4MB in the beginning and 100.3MB in the end (delta: -30.9MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2024-05-12 11:10:41,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.54ms. Allocated memory is still 148.9MB. Free memory was 100.3MB in the beginning and 98.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-05-12 11:10:41,679 INFO L158 Benchmark]: Boogie Preprocessor took 115.45ms. Allocated memory is still 148.9MB. Free memory was 98.2MB in the beginning and 121.2MB in the end (delta: -23.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-05-12 11:10:41,681 INFO L158 Benchmark]: RCFGBuilder took 496.16ms. Allocated memory is still 148.9MB. Free memory was 121.2MB in the beginning and 88.3MB in the end (delta: 32.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-05-12 11:10:41,681 INFO L158 Benchmark]: TraceAbstraction took 953.20ms. Allocated memory was 148.9MB in the beginning and 211.8MB in the end (delta: 62.9MB). Free memory was 87.6MB in the beginning and 177.3MB in the end (delta: -89.7MB). Peak memory consumption was 56.5MB. Max. memory is 16.1GB. [2024-05-12 11:10:41,682 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 0.17ms. Allocated memory is still 148.9MB. Free memory is still 120.5MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 148.9MB. Free memory is still 116.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 488.51ms. Allocated memory is still 148.9MB. Free memory was 69.4MB in the beginning and 100.3MB in the end (delta: -30.9MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.54ms. Allocated memory is still 148.9MB. Free memory was 100.3MB in the beginning and 98.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 115.45ms. Allocated memory is still 148.9MB. Free memory was 98.2MB in the beginning and 121.2MB in the end (delta: -23.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 496.16ms. Allocated memory is still 148.9MB. Free memory was 121.2MB in the beginning and 88.3MB in the end (delta: 32.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 953.20ms. Allocated memory was 148.9MB in the beginning and 211.8MB in the end (delta: 62.9MB). Free memory was 87.6MB in the beginning and 177.3MB in the end (delta: -89.7MB). Peak memory consumption was 56.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 727]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1] 0 //@ ghost int multithreaded = 0; [L1] 0 //@ ghost int ma_locked = 0; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L693] 0 int data1, data2; [L716] 0 pthread_t t1, t2; [L719] 0 data1 = 10 [L720] 0 data2 = 10 VAL [data1=10, data2=10, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L721] 0 //@ ghost multithreaded = 1; [L721] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [\old(arg)={0:0}, data1=10, data2=10, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L696] 1 //@ ghost ma_locked = 1; [L697] 1 data1++ VAL [\old(arg)={0:0}, arg={0:0}, data1=11, data2=10, ma={3:0}, mb={4:0}] [L698] 1 //@ ghost ma_locked = 0; [L699] 1 //@ ghost ma_locked = 1; [L700] 1 data2++ VAL [\old(arg)={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={4:0}] [L701] 1 //@ ghost ma_locked = 0; [L722] 0 //@ assert ((!multithreaded || (ma_locked || ((0 <= data1) && (data1 != 0)))) && (!multithreaded || (((0 <= data1) && (10 <= data1)) && (data1 != 0)))); [L722] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L706] 2 //@ ghost ma_locked = 1; [L707] 2 data1+=5 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=11, ma={3:0}, mb={4:0}] [L708] 2 //@ ghost ma_locked = 0; [L709] 2 //@ ghost ma_locked = 1; [L710] 2 data2-=6 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}] [L711] 2 //@ ghost ma_locked = 0; [L723] 0 //@ assert ((!multithreaded || (ma_locked || ((0 <= data1) && (data1 != 0)))) && (!multithreaded || (((0 <= data1) && (10 <= data1)) && (data1 != 0)))); [L723] 0 \read(t1) VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}] [L702] 1 return 0; [L712] 2 return 0; [L723] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L724] 0 \read(t2) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}] [L724] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L725] COND TRUE 0 data1==16 && data2==5 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L727] 0 reach_error() VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] - UnprovableResult [Line: 722]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 721]: 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. - UnprovableResult [Line: 722]: 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 5 procedures, 62 locations, 5 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: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 0 mSDtfsCounter, 82 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 77 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 11:10:41,704 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