./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/singleton.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/singleton.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 958ec4d9 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/singleton.i ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/singleton.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-dev-958ec4d-m [2024-02-07 14:43:53,652 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 14:43:53,721 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 14:43:53,725 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 14:43:53,725 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 14:43:53,752 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 14:43:53,753 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 14:43:53,753 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 14:43:53,754 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 14:43:53,756 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 14:43:53,756 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 14:43:53,756 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 14:43:53,757 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 14:43:53,757 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 14:43:53,757 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 14:43:53,758 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 14:43:53,758 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 14:43:53,758 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 14:43:53,758 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 14:43:53,759 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 14:43:53,759 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 14:43:53,760 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 14:43:53,760 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 14:43:53,760 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 14:43:53,760 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 14:43:53,761 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 14:43:53,761 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 14:43:53,761 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 14:43:53,762 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 14:43:53,762 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 14:43:53,763 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 14:43:53,763 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 14:43:53,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:43:53,763 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 14:43:53,764 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 14:43:53,764 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 14:43:53,764 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 14:43:53,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 14:43:53,764 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 14:43:53,765 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 14:43:53,765 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 14:43:53,765 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 14:43:53,765 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 14:43:53,765 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 14:43:54,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 14:43:54,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 14:43:54,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 14:43:54,038 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 14:43:54,038 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 14:43:54,039 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/singleton.yml/witness.yml [2024-02-07 14:43:54,140 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 14:43:54,140 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 14:43:54,141 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton.i [2024-02-07 14:43:55,139 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 14:43:55,367 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 14:43:55,367 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton.i [2024-02-07 14:43:55,384 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8283ee7e/b314bc8760d4467d940e61b18dc231d1/FLAGa598ef6e7 [2024-02-07 14:43:55,394 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8283ee7e/b314bc8760d4467d940e61b18dc231d1 [2024-02-07 14:43:55,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 14:43:55,395 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 14:43:55,396 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 14:43:55,396 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 14:43:55,400 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 14:43:55,401 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:43:54" (1/2) ... [2024-02-07 14:43:55,402 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60044c0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:43:55, skipping insertion in model container [2024-02-07 14:43:55,402 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:43:54" (1/2) ... [2024-02-07 14:43:55,403 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4a0d76c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:43:55, skipping insertion in model container [2024-02-07 14:43:55,403 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:43:55" (2/2) ... [2024-02-07 14:43:55,403 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60044c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:43:55, skipping insertion in model container [2024-02-07 14:43:55,404 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:43:55" (2/2) ... [2024-02-07 14:43:55,404 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 14:43:55,447 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 14:43:55,448 INFO L76 edCorrectnessWitness]: Location invariant before [L1123-L1123] ((0 <= expression) && (expression <= 1)) && (expression == 0 || expression == 1) [2024-02-07 14:43:55,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2024-02-07 14:43:55,909 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton.i[55547,55560] [2024-02-07 14:43:55,927 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:43:55,941 INFO L203 MainTranslator]: Completed pre-run Start Parsing Local [2024-02-07 14:43:56,029 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton.i[55547,55560] [2024-02-07 14:43:56,036 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:43:56,086 INFO L207 MainTranslator]: Completed translation [2024-02-07 14:43:56,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:43:56 WrapperNode [2024-02-07 14:43:56,088 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 14:43:56,089 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 14:43:56,089 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 14:43:56,089 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 14:43:56,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:43:56" (1/1) ... [2024-02-07 14:43:56,107 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:43:56" (1/1) ... [2024-02-07 14:43:56,135 INFO L138 Inliner]: procedures = 324, calls = 51, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2024-02-07 14:43:56,136 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 14:43:56,137 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 14:43:56,137 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 14:43:56,137 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 14:43:56,145 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:43:56" (1/1) ... [2024-02-07 14:43:56,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:43:56" (1/1) ... [2024-02-07 14:43:56,165 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:43:56" (1/1) ... [2024-02-07 14:43:56,187 INFO L175 MemorySlicer]: Split 17 memory accesses to 8 slices as follows [2, 2, 2, 2, 2, 2, 3, 2]. 18 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0]. The 8 writes are split as follows [0, 1, 1, 1, 1, 1, 2, 1]. [2024-02-07 14:43:56,190 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:43:56" (1/1) ... [2024-02-07 14:43:56,190 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:43:56" (1/1) ... [2024-02-07 14:43:56,201 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:43:56" (1/1) ... [2024-02-07 14:43:56,209 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:43:56" (1/1) ... [2024-02-07 14:43:56,211 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:43:56" (1/1) ... [2024-02-07 14:43:56,212 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:43:56" (1/1) ... [2024-02-07 14:43:56,214 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 14:43:56,223 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 14:43:56,223 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 14:43:56,224 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 14:43:56,225 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:43:56" (1/1) ... [2024-02-07 14:43:56,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:43:56,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 14:43:56,266 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) [2024-02-07 14:43:56,286 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 [2024-02-07 14:43:56,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-07 14:43:56,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 14:43:56,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 14:43:56,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-07 14:43:56,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-07 14:43:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-07 14:43:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-07 14:43:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-07 14:43:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-07 14:43:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-02-07 14:43:56,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-02-07 14:43:56,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-02-07 14:43:56,331 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2024-02-07 14:43:56,331 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2024-02-07 14:43:56,331 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-07 14:43:56,331 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-07 14:43:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-07 14:43:56,332 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-07 14:43:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-02-07 14:43:56,333 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-02-07 14:43:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 14:43:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 14:43:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 14:43:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 14:43:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-07 14:43:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-02-07 14:43:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-02-07 14:43:56,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-02-07 14:43:56,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-02-07 14:43:56,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 14:43:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 14:43:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 14:43:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 14:43:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 14:43:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-07 14:43:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-02-07 14:43:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-02-07 14:43:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-02-07 14:43:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 14:43:56,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 14:43:56,341 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 14:43:56,497 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 14:43:56,499 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 14:43:56,671 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 14:43:56,672 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 14:43:56,818 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 14:43:56,818 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-07 14:43:56,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:43:56 BoogieIcfgContainer [2024-02-07 14:43:56,818 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 14:43:56,820 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 14:43:56,820 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 14:43:56,822 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 14:43:56,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:43:54" (1/4) ... [2024-02-07 14:43:56,823 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35516ea7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 02:43:56, skipping insertion in model container [2024-02-07 14:43:56,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 02:43:55" (2/4) ... [2024-02-07 14:43:56,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35516ea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:43:56, skipping insertion in model container [2024-02-07 14:43:56,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:43:56" (3/4) ... [2024-02-07 14:43:56,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35516ea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:43:56, skipping insertion in model container [2024-02-07 14:43:56,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:43:56" (4/4) ... [2024-02-07 14:43:56,826 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton.i [2024-02-07 14:43:56,840 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 14:43:56,840 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-02-07 14:43:56,840 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 14:43:56,928 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2024-02-07 14:43:56,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 82 transitions, 261 flow [2024-02-07 14:43:56,994 INFO L124 PetriNetUnfolderBase]: 6/51 cut-off events. [2024-02-07 14:43:56,994 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-02-07 14:43:56,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 51 events. 6/51 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 38 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 60. Up to 3 conditions per place. [2024-02-07 14:43:56,998 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 82 transitions, 261 flow [2024-02-07 14:43:57,001 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 48 transitions, 147 flow [2024-02-07 14:43:57,014 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 14:43:57,021 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;@5953cca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 14:43:57,021 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-02-07 14:43:57,038 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 14:43:57,038 INFO L124 PetriNetUnfolderBase]: 5/44 cut-off events. [2024-02-07 14:43:57,038 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-02-07 14:43:57,039 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:43:57,039 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, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:43:57,040 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2024-02-07 14:43:57,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:43:57,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1746979384, now seen corresponding path program 1 times [2024-02-07 14:43:57,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:43:57,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159995295] [2024-02-07 14:43:57,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:43:57,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:43:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:43:57,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:43:57,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:43:57,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159995295] [2024-02-07 14:43:57,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159995295] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:43:57,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:43:57,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 14:43:57,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594481311] [2024-02-07 14:43:57,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:43:57,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 14:43:57,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:43:57,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 14:43:57,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 14:43:57,749 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 84 [2024-02-07 14:43:57,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 48 transitions, 147 flow. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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) [2024-02-07 14:43:57,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:43:57,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 84 [2024-02-07 14:43:57,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:43:58,274 INFO L124 PetriNetUnfolderBase]: 2651/3779 cut-off events. [2024-02-07 14:43:58,274 INFO L125 PetriNetUnfolderBase]: For 330/330 co-relation queries the response was YES. [2024-02-07 14:43:58,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8049 conditions, 3779 events. 2651/3779 cut-off events. For 330/330 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 17112 event pairs, 879 based on Foata normal form. 2/3635 useless extension candidates. Maximal degree in co-relation 8018. Up to 2329 conditions per place. [2024-02-07 14:43:58,290 INFO L140 encePairwiseOnDemand]: 77/84 looper letters, 55 selfloop transitions, 4 changer transitions 13/78 dead transitions. [2024-02-07 14:43:58,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 78 transitions, 387 flow [2024-02-07 14:43:58,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 14:43:58,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 14:43:58,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 142 transitions. [2024-02-07 14:43:58,303 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4226190476190476 [2024-02-07 14:43:58,304 INFO L175 Difference]: Start difference. First operand has 62 places, 48 transitions, 147 flow. Second operand 4 states and 142 transitions. [2024-02-07 14:43:58,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 78 transitions, 387 flow [2024-02-07 14:43:58,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 78 transitions, 329 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-02-07 14:43:58,322 INFO L231 Difference]: Finished difference. Result has 56 places, 51 transitions, 147 flow [2024-02-07 14:43:58,323 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=147, PETRI_PLACES=56, PETRI_TRANSITIONS=51} [2024-02-07 14:43:58,326 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-02-07 14:43:58,326 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 51 transitions, 147 flow [2024-02-07 14:43:58,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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) [2024-02-07 14:43:58,327 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:43:58,327 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, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:43:58,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 14:43:58,327 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2024-02-07 14:43:58,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:43:58,328 INFO L85 PathProgramCache]: Analyzing trace with hash -134047030, now seen corresponding path program 2 times [2024-02-07 14:43:58,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:43:58,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003016441] [2024-02-07 14:43:58,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:43:58,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:43:58,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:43:58,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:43:58,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:43:58,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003016441] [2024-02-07 14:43:58,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003016441] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:43:58,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:43:58,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 14:43:58,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051286353] [2024-02-07 14:43:58,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:43:58,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 14:43:58,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:43:58,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 14:43:58,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 14:43:58,649 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 84 [2024-02-07 14:43:58,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 51 transitions, 147 flow. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2024-02-07 14:43:58,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:43:58,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 84 [2024-02-07 14:43:58,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:43:58,991 INFO L124 PetriNetUnfolderBase]: 2283/3258 cut-off events. [2024-02-07 14:43:58,991 INFO L125 PetriNetUnfolderBase]: For 1387/1387 co-relation queries the response was YES. [2024-02-07 14:43:58,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7880 conditions, 3258 events. 2283/3258 cut-off events. For 1387/1387 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 14638 event pairs, 875 based on Foata normal form. 1/3103 useless extension candidates. Maximal degree in co-relation 7871. Up to 1938 conditions per place. [2024-02-07 14:43:58,999 INFO L140 encePairwiseOnDemand]: 78/84 looper letters, 50 selfloop transitions, 2 changer transitions 18/76 dead transitions. [2024-02-07 14:43:58,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 76 transitions, 358 flow [2024-02-07 14:43:59,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 14:43:59,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 14:43:59,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 132 transitions. [2024-02-07 14:43:59,004 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39285714285714285 [2024-02-07 14:43:59,004 INFO L175 Difference]: Start difference. First operand has 56 places, 51 transitions, 147 flow. Second operand 4 states and 132 transitions. [2024-02-07 14:43:59,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 76 transitions, 358 flow [2024-02-07 14:43:59,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 76 transitions, 342 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-02-07 14:43:59,008 INFO L231 Difference]: Finished difference. Result has 55 places, 50 transitions, 145 flow [2024-02-07 14:43:59,008 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=145, PETRI_PLACES=55, PETRI_TRANSITIONS=50} [2024-02-07 14:43:59,009 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -7 predicate places. [2024-02-07 14:43:59,009 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 50 transitions, 145 flow [2024-02-07 14:43:59,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2024-02-07 14:43:59,009 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:43:59,009 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:43:59,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 14:43:59,010 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2024-02-07 14:43:59,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:43:59,011 INFO L85 PathProgramCache]: Analyzing trace with hash -976899728, now seen corresponding path program 1 times [2024-02-07 14:43:59,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:43:59,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959640569] [2024-02-07 14:43:59,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:43:59,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:43:59,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 14:43:59,068 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-07 14:43:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 14:43:59,125 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-07 14:43:59,126 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-07 14:43:59,126 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (12 of 13 remaining) [2024-02-07 14:43:59,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 13 remaining) [2024-02-07 14:43:59,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 13 remaining) [2024-02-07 14:43:59,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 13 remaining) [2024-02-07 14:43:59,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2024-02-07 14:43:59,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 13 remaining) [2024-02-07 14:43:59,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 13 remaining) [2024-02-07 14:43:59,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 13 remaining) [2024-02-07 14:43:59,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2024-02-07 14:43:59,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2024-02-07 14:43:59,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2024-02-07 14:43:59,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2024-02-07 14:43:59,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork5Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 13 remaining) [2024-02-07 14:43:59,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-07 14:43:59,133 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2024-02-07 14:43:59,138 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-07 14:43:59,138 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-07 14:43:59,206 INFO L503 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-02-07 14:43:59,207 INFO L504 ceAbstractionStarter]: WitnessConsidered=1 [2024-02-07 14:43:59,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 02:43:59 BasicIcfg [2024-02-07 14:43:59,207 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-07 14:43:59,208 INFO L158 Benchmark]: Toolchain (without parser) took 3812.57ms. Allocated memory was 155.2MB in the beginning and 287.3MB in the end (delta: 132.1MB). Free memory was 76.9MB in the beginning and 167.0MB in the end (delta: -90.1MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. [2024-02-07 14:43:59,208 INFO L158 Benchmark]: Witness Parser took 0.22ms. Allocated memory is still 155.2MB. Free memory was 104.2MB in the beginning and 104.0MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:43:59,208 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 155.2MB. Free memory is still 125.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:43:59,209 INFO L158 Benchmark]: CACSL2BoogieTranslator took 691.71ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 76.7MB in the beginning and 135.4MB in the end (delta: -58.7MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2024-02-07 14:43:59,209 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.07ms. Allocated memory is still 195.0MB. Free memory was 135.4MB in the beginning and 133.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 14:43:59,209 INFO L158 Benchmark]: Boogie Preprocessor took 85.90ms. Allocated memory is still 195.0MB. Free memory was 133.1MB in the beginning and 130.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 14:43:59,210 INFO L158 Benchmark]: RCFGBuilder took 595.33ms. Allocated memory is still 195.0MB. Free memory was 130.2MB in the beginning and 98.7MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-02-07 14:43:59,210 INFO L158 Benchmark]: TraceAbstraction took 2387.60ms. Allocated memory was 195.0MB in the beginning and 287.3MB in the end (delta: 92.3MB). Free memory was 98.7MB in the beginning and 167.0MB in the end (delta: -68.2MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2024-02-07 14:43:59,211 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 0.22ms. Allocated memory is still 155.2MB. Free memory was 104.2MB in the beginning and 104.0MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 155.2MB. Free memory is still 125.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 691.71ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 76.7MB in the beginning and 135.4MB in the end (delta: -58.7MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.07ms. Allocated memory is still 195.0MB. Free memory was 135.4MB in the beginning and 133.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.90ms. Allocated memory is still 195.0MB. Free memory was 133.1MB in the beginning and 130.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 595.33ms. Allocated memory is still 195.0MB. Free memory was 130.2MB in the beginning and 98.7MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2387.60ms. Allocated memory was 195.0MB in the beginning and 287.3MB in the end (delta: 92.3MB). Free memory was 98.7MB in the beginning and 167.0MB in the end (delta: -68.2MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1123]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1124] 0 char *v; [L1161] 0 pthread_t t; [L1162] FCALL, FORK 0 pthread_create(&t, 0, thread0, 0) VAL [arg={0:0}, t={6:0}, v={0:0}] [L1163] 0 \read(t) VAL [arg={0:0}, v={0:0}] [L1146] 1 pthread_t t1, t2, t3, t4, t5; [L1147] FCALL, FORK 1 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={0:0}] [L1148] 1 \read(t1) VAL [arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={0:0}] [L1127] 2 v = malloc(sizeof(char)) [L1128] 2 return 0; [L1148] FCALL, JOIN 2 pthread_join(t1, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={-2:0}] [L1149] FCALL, FORK 1 pthread_create(&t2, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={-2:0}] [L1133] 3 v[0] = 'X' VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={-2:0}] [L1150] FCALL, FORK 1 pthread_create(&t3, 0, thread3, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={-2:0}] [L1135] 3 return 0; [L1151] FCALL, FORK 1 pthread_create(&t4, 0, thread2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={-2:0}] [L1133] 5 v[0] = 'X' VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={-2:0}] [L1152] FCALL, FORK 1 pthread_create(&t5, 0, thread2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={-2:0}] [L1133] 6 v[0] = 'X' VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={-2:0}] [L1135] 5 return 0; [L1153] 1 \read(t2) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={-2:0}] [L1135] 6 return 0; [L1153] FCALL, JOIN 3 pthread_join(t2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={-2:0}] [L1154] 1 \read(t3) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={-2:0}] [L1140] 4 v[0] = 'Y' VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={-2:0}] [L1142] 4 return 0; [L1154] FCALL, JOIN 4 pthread_join(t3, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={-2:0}] [L1155] 1 \read(t4) VAL [\result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={-2:0}] [L1155] FCALL, JOIN 5 pthread_join(t4, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={-2:0}] [L1156] 1 \read(t5) VAL [\result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={-2:0}] [L1156] FCALL, JOIN 6 pthread_join(t5, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={5:0}, t3={10:0}, t4={9:0}, t5={8:0}, v={-2:0}] [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1163] FCALL, JOIN 1 pthread_join(t, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t={6:0}, v={-2:0}] [L1164] EXPR 0 v[0] [L1164] CALL 0 __VERIFIER_assert(v[0] == 'X') [L1123] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[expression]],BinaryExpression[COMPLEQ,IdentifierExpression[expression],IntegerLiteral[1]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[expression],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[expression],IntegerLiteral[1]]]]]] VAL [\old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, v={-2:0}] [L1123] COND TRUE 0 !expression VAL [\old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, v={-2:0}] [L1123] 0 reach_error() VAL [\old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, v={-2:0}] - UnprovableResult [Line: 1152]: 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: 1151]: 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: 1149]: 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: 1150]: 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: 1147]: 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: 1123]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1162]: 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: 1151]: 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: 1152]: 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: 1147]: 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: 1149]: 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: 1150]: 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 11 procedures, 95 locations, 13 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: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 57 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 307 IncrementalHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 4 mSDtfsCounter, 307 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=147occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 0.7s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 172 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! [2024-02-07 14:43:59,260 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