./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_41-traces-ex-7_unknown_1_neg.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 59af5db6 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/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_41-traces-ex-7_unknown_1_neg.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-59af5db-m [2024-02-02 09:36:17,998 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 09:36:18,030 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 09:36:18,033 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 09:36:18,034 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 09:36:18,047 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 09:36:18,048 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 09:36:18,048 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 09:36:18,049 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 09:36:18,049 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 09:36:18,049 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 09:36:18,050 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 09:36:18,050 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 09:36:18,051 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 09:36:18,051 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 09:36:18,051 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 09:36:18,051 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 09:36:18,052 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 09:36:18,052 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 09:36:18,052 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 09:36:18,053 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 09:36:18,053 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 09:36:18,053 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 09:36:18,054 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 09:36:18,054 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 09:36:18,054 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 09:36:18,055 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 09:36:18,055 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 09:36:18,056 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 09:36:18,056 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 09:36:18,056 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 09:36:18,056 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 09:36:18,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:36:18,057 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 09:36:18,057 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 09:36:18,058 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 09:36:18,058 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 09:36:18,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 09:36:18,058 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 09:36:18,059 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 09:36:18,059 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 09:36:18,059 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 09:36:18,059 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 09:36:18,060 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 09:36:18,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 09:36:18,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 09:36:18,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 09:36:18,283 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 09:36:18,283 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 09:36:18,284 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_41-traces-ex-7_unknown_1_neg.yml/witness.yml [2024-02-02 09:36:18,444 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 09:36:18,445 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 09:36:18,447 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2024-02-02 09:36:19,522 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 09:36:19,746 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 09:36:19,750 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2024-02-02 09:36:19,763 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc1e9acf2/4ec9cfb88c364f23b1fc068032dfe9da/FLAG644bf5bdf [2024-02-02 09:36:19,775 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc1e9acf2/4ec9cfb88c364f23b1fc068032dfe9da [2024-02-02 09:36:19,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 09:36:19,778 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 09:36:19,779 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 09:36:19,779 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 09:36:19,783 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 09:36:19,784 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:36:18" (1/2) ... [2024-02-02 09:36:19,784 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@364d1a5a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:36:19, skipping insertion in model container [2024-02-02 09:36:19,785 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:36:18" (1/2) ... [2024-02-02 09:36:19,786 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@28b39e1b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:36:19, skipping insertion in model container [2024-02-02 09:36:19,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:36:19" (2/2) ... [2024-02-02 09:36:19,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@364d1a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:36:19, skipping insertion in model container [2024-02-02 09:36:19,787 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:36:19" (2/2) ... [2024-02-02 09:36:19,788 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 09:36:19,834 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 09:36:19,835 INFO L101 nessWitnessExtractor]: Location invariant before [L697-L697] ((((0 <= g) && (g <= 17)) && (g <= 127)) && (g % 17 == 0)) && (g == 0 || g == 17) [2024-02-02 09:36:19,835 INFO L101 nessWitnessExtractor]: Location invariant before [L686-L686] (((((0 <= g) && (g <= 17)) && (g <= 127)) && (g % 17 == 0)) && ((unsigned long )arg == 0UL)) && (g == 0 || g == 17) [2024-02-02 09:36:19,835 INFO L101 nessWitnessExtractor]: Location invariant before [L687-L687] (((((0 <= g) && (g <= 17)) && (g <= 127)) && (g % 17 == 0)) && ((unsigned long )arg == 0UL)) && (g == 0 || g == 17) [2024-02-02 09:36:19,835 INFO L101 nessWitnessExtractor]: Location invariant before [L19-L19] ((((((((((((((0 <= g) && (g <= 17)) && (g <= 127)) && (g % 17 == 0)) && (g == 0 || g == 17)) && (0 <= g)) && (g <= 17)) && (g <= 127)) && (g % 17 == 0)) && (g == 0 || g == 17)) && (0 <= g)) && (g <= 17)) && (g <= 127)) && (g % 17 == 0)) && (g == 0 || g == 17) [2024-02-02 09:36:19,836 INFO L101 nessWitnessExtractor]: Location invariant before [L690-L690] (unsigned long )arg == 0UL [2024-02-02 09:36:19,836 INFO L101 nessWitnessExtractor]: Location invariant before [L688-L688] (g == 17) && ((unsigned long )arg == 0UL) [2024-02-02 09:36:19,836 INFO L101 nessWitnessExtractor]: Location invariant before [L698-L698] ((((0 <= g) && (g <= 17)) && (g <= 127)) && (g % 17 == 0)) && (g == 0 || g == 17) [2024-02-02 09:36:19,836 INFO L101 nessWitnessExtractor]: Location invariant before [L689-L689] (g == 17) && ((unsigned long )arg == 0UL) [2024-02-02 09:36:19,836 INFO L101 nessWitnessExtractor]: Location invariant before [L694-L694] g == 0 [2024-02-02 09:36:19,836 INFO L101 nessWitnessExtractor]: Location invariant before [L696-L696] ((((0 <= g) && (g <= 17)) && (g <= 127)) && (g % 17 == 0)) && (g == 0 || g == 17) [2024-02-02 09:36:19,836 INFO L101 nessWitnessExtractor]: Location invariant before [L685-L685] (unsigned long )arg == 0UL [2024-02-02 09:36:19,836 INFO L101 nessWitnessExtractor]: Location invariant before [L699-L699] ((((0 <= g) && (g <= 17)) && (g <= 127)) && (g % 17 == 0)) && (g == 0 || g == 17) [2024-02-02 09:36:19,870 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-02 09:36:20,007 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2024-02-02 09:36:20,162 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:36:20,194 INFO L202 MainTranslator]: Completed pre-run [2024-02-02 09:36:20,224 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2024-02-02 09:36:20,224 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_assert(int cond) { if(!(cond)) { ERROR: {reach_error();abort();} } } with a witness entry 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 [2024-02-02 09:36:20,293 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:36:20,318 INFO L206 MainTranslator]: Completed translation [2024-02-02 09:36:20,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:36:20 WrapperNode [2024-02-02 09:36:20,319 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 09:36:20,320 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 09:36:20,320 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 09:36:20,320 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 09:36:20,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:36:20" (1/1) ... [2024-02-02 09:36:20,340 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:36:20" (1/1) ... [2024-02-02 09:36:20,355 INFO L138 Inliner]: procedures = 163, calls = 31, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2024-02-02 09:36:20,356 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 09:36:20,357 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 09:36:20,357 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 09:36:20,357 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 09:36:20,364 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:36:20" (1/1) ... [2024-02-02 09:36:20,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:36:20" (1/1) ... [2024-02-02 09:36:20,369 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:36:20" (1/1) ... [2024-02-02 09:36:20,385 INFO L175 MemorySlicer]: Split 13 memory accesses to 4 slices as follows [2, 5, 1, 5]. 38 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 0, 5]. The 1 writes are split as follows [0, 0, 1, 0]. [2024-02-02 09:36:20,385 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:36:20" (1/1) ... [2024-02-02 09:36:20,386 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:36:20" (1/1) ... [2024-02-02 09:36:20,397 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:36:20" (1/1) ... [2024-02-02 09:36:20,401 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:36:20" (1/1) ... [2024-02-02 09:36:20,402 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:36:20" (1/1) ... [2024-02-02 09:36:20,408 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:36:20" (1/1) ... [2024-02-02 09:36:20,410 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 09:36:20,415 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 09:36:20,415 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 09:36:20,415 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 09:36:20,416 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:36:20" (1/1) ... [2024-02-02 09:36:20,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:36:20,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 09:36:20,578 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) [2024-02-02 09:36:20,586 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 [2024-02-02 09:36:20,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 09:36:20,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 09:36:20,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 09:36:20,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-02 09:36:20,610 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-02-02 09:36:20,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 09:36:20,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 09:36:20,610 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-02-02 09:36:20,610 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-02-02 09:36:20,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 09:36:20,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 09:36:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 09:36:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 09:36:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-02 09:36:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-02-02 09:36:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 09:36:20,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 09:36:20,612 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-02 09:36:20,746 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 09:36:20,748 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 09:36:20,986 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 09:36:20,988 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 09:36:21,064 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 09:36:21,064 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-02 09:36:21,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:36:21 BoogieIcfgContainer [2024-02-02 09:36:21,065 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 09:36:21,066 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 09:36:21,066 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 09:36:21,069 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 09:36:21,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:36:18" (1/4) ... [2024-02-02 09:36:21,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c61cc48 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:36:21, skipping insertion in model container [2024-02-02 09:36:21,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:36:19" (2/4) ... [2024-02-02 09:36:21,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c61cc48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:36:21, skipping insertion in model container [2024-02-02 09:36:21,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:36:20" (3/4) ... [2024-02-02 09:36:21,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c61cc48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:36:21, skipping insertion in model container [2024-02-02 09:36:21,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:36:21" (4/4) ... [2024-02-02 09:36:21,071 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.i [2024-02-02 09:36:21,084 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 09:36:21,084 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-02-02 09:36:21,084 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 09:36:21,133 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-02 09:36:21,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 46 transitions, 96 flow [2024-02-02 09:36:21,184 INFO L124 PetriNetUnfolderBase]: 1/45 cut-off events. [2024-02-02 09:36:21,184 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:36:21,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 45 events. 1/45 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2024-02-02 09:36:21,187 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 46 transitions, 96 flow [2024-02-02 09:36:21,189 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 45 transitions, 93 flow [2024-02-02 09:36:21,195 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:36:21,200 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;@44d9a03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:36:21,200 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-02-02 09:36:21,202 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:36:21,202 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-02 09:36:21,202 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:36:21,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:36:21,203 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-02 09:36:21,203 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 16 more)] === [2024-02-02 09:36:21,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:36:21,206 INFO L85 PathProgramCache]: Analyzing trace with hash 7420, now seen corresponding path program 1 times [2024-02-02 09:36:21,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:36:21,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616643844] [2024-02-02 09:36:21,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:36:21,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:36:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:36:21,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:36:21,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:36:21,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616643844] [2024-02-02 09:36:21,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616643844] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:36:21,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:36:21,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:36:21,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568917486] [2024-02-02 09:36:21,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:36:21,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:36:21,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:36:21,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:36:21,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:36:21,572 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 46 [2024-02-02 09:36:21,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 93 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2024-02-02 09:36:21,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:36:21,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 46 [2024-02-02 09:36:21,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:36:21,675 INFO L124 PetriNetUnfolderBase]: 76/248 cut-off events. [2024-02-02 09:36:21,676 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:36:21,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 427 conditions, 248 events. 76/248 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1149 event pairs, 34 based on Foata normal form. 15/242 useless extension candidates. Maximal degree in co-relation 416. Up to 135 conditions per place. [2024-02-02 09:36:21,682 INFO L140 encePairwiseOnDemand]: 38/46 looper letters, 27 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2024-02-02 09:36:21,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 50 transitions, 161 flow [2024-02-02 09:36:21,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:36:21,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:36:21,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-02-02 09:36:21,694 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7391304347826086 [2024-02-02 09:36:21,695 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 93 flow. Second operand 3 states and 102 transitions. [2024-02-02 09:36:21,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 50 transitions, 161 flow [2024-02-02 09:36:21,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 50 transitions, 160 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-02 09:36:21,702 INFO L231 Difference]: Finished difference. Result has 49 places, 43 transitions, 102 flow [2024-02-02 09:36:21,704 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=49, PETRI_TRANSITIONS=43} [2024-02-02 09:36:21,708 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 1 predicate places. [2024-02-02 09:36:21,708 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 43 transitions, 102 flow [2024-02-02 09:36:21,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2024-02-02 09:36:21,709 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:36:21,709 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-02 09:36:21,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 09:36:21,710 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 16 more)] === [2024-02-02 09:36:21,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:36:21,712 INFO L85 PathProgramCache]: Analyzing trace with hash 221305705, now seen corresponding path program 1 times [2024-02-02 09:36:21,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:36:21,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255189305] [2024-02-02 09:36:21,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:36:21,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:36:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:36:21,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:36:21,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:36:21,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255189305] [2024-02-02 09:36:21,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255189305] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:36:21,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:36:21,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:36:21,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111806849] [2024-02-02 09:36:21,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:36:21,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:36:21,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:36:21,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:36:21,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:36:21,887 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 46 [2024-02-02 09:36:21,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 43 transitions, 102 flow. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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) [2024-02-02 09:36:21,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:36:21,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 46 [2024-02-02 09:36:21,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:36:21,979 INFO L124 PetriNetUnfolderBase]: 49/214 cut-off events. [2024-02-02 09:36:21,979 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-02-02 09:36:21,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 214 events. 49/214 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 954 event pairs, 30 based on Foata normal form. 8/205 useless extension candidates. Maximal degree in co-relation 352. Up to 105 conditions per place. [2024-02-02 09:36:21,983 INFO L140 encePairwiseOnDemand]: 42/46 looper letters, 22 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2024-02-02 09:36:21,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 48 transitions, 160 flow [2024-02-02 09:36:21,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:36:21,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:36:21,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2024-02-02 09:36:21,990 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7065217391304348 [2024-02-02 09:36:21,990 INFO L175 Difference]: Start difference. First operand has 49 places, 43 transitions, 102 flow. Second operand 4 states and 130 transitions. [2024-02-02 09:36:21,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 48 transitions, 160 flow [2024-02-02 09:36:21,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 48 transitions, 156 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:36:21,991 INFO L231 Difference]: Finished difference. Result has 48 places, 41 transitions, 98 flow [2024-02-02 09:36:21,992 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=98, PETRI_PLACES=48, PETRI_TRANSITIONS=41} [2024-02-02 09:36:21,992 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 0 predicate places. [2024-02-02 09:36:21,993 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 41 transitions, 98 flow [2024-02-02 09:36:21,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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) [2024-02-02 09:36:21,993 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:36:21,993 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:36:21,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-02 09:36:21,993 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 16 more)] === [2024-02-02 09:36:21,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:36:21,994 INFO L85 PathProgramCache]: Analyzing trace with hash 143696649, now seen corresponding path program 1 times [2024-02-02 09:36:21,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:36:21,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688594312] [2024-02-02 09:36:21,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:36:21,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:36:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:36:22,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:36:22,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:36:22,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688594312] [2024-02-02 09:36:22,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688594312] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:36:22,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:36:22,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:36:22,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984818369] [2024-02-02 09:36:22,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:36:22,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:36:22,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:36:22,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:36:22,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:36:22,158 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 46 [2024-02-02 09:36:22,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 41 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-02-02 09:36:22,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:36:22,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 46 [2024-02-02 09:36:22,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:36:22,227 INFO L124 PetriNetUnfolderBase]: 97/284 cut-off events. [2024-02-02 09:36:22,227 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-02-02 09:36:22,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 550 conditions, 284 events. 97/284 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1326 event pairs, 27 based on Foata normal form. 0/280 useless extension candidates. Maximal degree in co-relation 537. Up to 135 conditions per place. [2024-02-02 09:36:22,229 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 36 selfloop transitions, 3 changer transitions 0/53 dead transitions. [2024-02-02 09:36:22,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 53 transitions, 200 flow [2024-02-02 09:36:22,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:36:22,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:36:22,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2024-02-02 09:36:22,231 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5489130434782609 [2024-02-02 09:36:22,231 INFO L175 Difference]: Start difference. First operand has 48 places, 41 transitions, 98 flow. Second operand 4 states and 101 transitions. [2024-02-02 09:36:22,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 53 transitions, 200 flow [2024-02-02 09:36:22,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 53 transitions, 197 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:36:22,232 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 97 flow [2024-02-02 09:36:22,232 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=97, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2024-02-02 09:36:22,233 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2024-02-02 09:36:22,233 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 97 flow [2024-02-02 09:36:22,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-02-02 09:36:22,233 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:36:22,234 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:36:22,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-02 09:36:22,234 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 16 more)] === [2024-02-02 09:36:22,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:36:22,235 INFO L85 PathProgramCache]: Analyzing trace with hash 980981676, now seen corresponding path program 1 times [2024-02-02 09:36:22,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:36:22,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710667641] [2024-02-02 09:36:22,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:36:22,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:36:22,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:36:22,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:36:22,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:36:22,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710667641] [2024-02-02 09:36:22,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710667641] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:36:22,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:36:22,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:36:22,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953117516] [2024-02-02 09:36:22,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:36:22,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:36:22,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:36:22,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:36:22,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:36:22,306 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 46 [2024-02-02 09:36:22,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2024-02-02 09:36:22,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:36:22,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 46 [2024-02-02 09:36:22,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:36:22,392 INFO L124 PetriNetUnfolderBase]: 77/223 cut-off events. [2024-02-02 09:36:22,392 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-02-02 09:36:22,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 437 conditions, 223 events. 77/223 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 900 event pairs, 7 based on Foata normal form. 24/243 useless extension candidates. Maximal degree in co-relation 424. Up to 90 conditions per place. [2024-02-02 09:36:22,393 INFO L140 encePairwiseOnDemand]: 38/46 looper letters, 27 selfloop transitions, 2 changer transitions 6/47 dead transitions. [2024-02-02 09:36:22,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 47 transitions, 175 flow [2024-02-02 09:36:22,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:36:22,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:36:22,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 97 transitions. [2024-02-02 09:36:22,395 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5271739130434783 [2024-02-02 09:36:22,395 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 97 flow. Second operand 4 states and 97 transitions. [2024-02-02 09:36:22,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 47 transitions, 175 flow [2024-02-02 09:36:22,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 47 transitions, 167 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-02-02 09:36:22,396 INFO L231 Difference]: Finished difference. Result has 40 places, 31 transitions, 69 flow [2024-02-02 09:36:22,396 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=69, PETRI_PLACES=40, PETRI_TRANSITIONS=31} [2024-02-02 09:36:22,397 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -8 predicate places. [2024-02-02 09:36:22,397 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 31 transitions, 69 flow [2024-02-02 09:36:22,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2024-02-02 09:36:22,397 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:36:22,397 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:36:22,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-02 09:36:22,398 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 16 more)] === [2024-02-02 09:36:22,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:36:22,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1500324516, now seen corresponding path program 1 times [2024-02-02 09:36:22,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:36:22,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845594696] [2024-02-02 09:36:22,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:36:22,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:36:22,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-02 09:36:22,412 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-02 09:36:22,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-02 09:36:22,433 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-02 09:36:22,433 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-02 09:36:22,434 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (18 of 19 remaining) [2024-02-02 09:36:22,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 19 remaining) [2024-02-02 09:36:22,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 19 remaining) [2024-02-02 09:36:22,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 19 remaining) [2024-02-02 09:36:22,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 19 remaining) [2024-02-02 09:36:22,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 19 remaining) [2024-02-02 09:36:22,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 19 remaining) [2024-02-02 09:36:22,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 19 remaining) [2024-02-02 09:36:22,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 19 remaining) [2024-02-02 09:36:22,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 19 remaining) [2024-02-02 09:36:22,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 19 remaining) [2024-02-02 09:36:22,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 19 remaining) [2024-02-02 09:36:22,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 19 remaining) [2024-02-02 09:36:22,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 19 remaining) [2024-02-02 09:36:22,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 19 remaining) [2024-02-02 09:36:22,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 19 remaining) [2024-02-02 09:36:22,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 19 remaining) [2024-02-02 09:36:22,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 19 remaining) [2024-02-02 09:36:22,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 19 remaining) [2024-02-02 09:36:22,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-02 09:36:22,438 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-02-02 09:36:22,443 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-02 09:36:22,443 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-02 09:36:22,459 INFO L503 ceAbstractionStarter]: Automizer considered 11 witness invariants [2024-02-02 09:36:22,459 INFO L504 ceAbstractionStarter]: WitnessConsidered=11 [2024-02-02 09:36:22,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 09:36:22 BasicIcfg [2024-02-02 09:36:22,460 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-02 09:36:22,460 INFO L158 Benchmark]: Toolchain (without parser) took 2682.79ms. Allocated memory is still 213.9MB. Free memory was 138.8MB in the beginning and 163.5MB in the end (delta: -24.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:36:22,461 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 107.0MB. Free memory is still 68.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:36:22,461 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 213.9MB. Free memory was 186.0MB in the beginning and 185.9MB in the end (delta: 34.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:36:22,461 INFO L158 Benchmark]: CACSL2BoogieTranslator took 540.54ms. Allocated memory is still 213.9MB. Free memory was 138.6MB in the beginning and 176.6MB in the end (delta: -37.9MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2024-02-02 09:36:22,461 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.78ms. Allocated memory is still 213.9MB. Free memory was 176.6MB in the beginning and 174.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-02 09:36:22,462 INFO L158 Benchmark]: Boogie Preprocessor took 57.36ms. Allocated memory is still 213.9MB. Free memory was 174.3MB in the beginning and 172.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-02 09:36:22,462 INFO L158 Benchmark]: RCFGBuilder took 650.26ms. Allocated memory is still 213.9MB. Free memory was 171.9MB in the beginning and 142.6MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-02-02 09:36:22,462 INFO L158 Benchmark]: TraceAbstraction took 1393.63ms. Allocated memory is still 213.9MB. Free memory was 141.7MB in the beginning and 163.5MB in the end (delta: -21.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:36:22,463 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 0.14ms. Allocated memory is still 107.0MB. Free memory is still 68.5MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.63ms. Allocated memory is still 213.9MB. Free memory was 186.0MB in the beginning and 185.9MB in the end (delta: 34.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 540.54ms. Allocated memory is still 213.9MB. Free memory was 138.6MB in the beginning and 176.6MB in the end (delta: -37.9MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.78ms. Allocated memory is still 213.9MB. Free memory was 176.6MB in the beginning and 174.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.36ms. Allocated memory is still 213.9MB. Free memory was 174.3MB in the beginning and 172.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 650.26ms. Allocated memory is still 213.9MB. Free memory was 171.9MB in the beginning and 142.6MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1393.63ms. Allocated memory is still 213.9MB. Free memory was 141.7MB in the beginning and 163.5MB in the end (delta: -21.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; VAL [A={3:0}, D={4:0}, g=0, id={5:0}] [L694] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[0]]]] [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, D={4:0}, arg={0:0}, g=0, id={5:0}] [L696] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[g]],BinaryExpression[COMPLEQ,IdentifierExpression[g],IntegerLiteral[17]]],BinaryExpression[COMPLEQ,IdentifierExpression[g],IntegerLiteral[127]]],BinaryExpression[COMPEQ,BinaryExpression[ARITHMOD,IdentifierExpression[g],IntegerLiteral[17]],IntegerLiteral[0]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[17]]]]]] VAL [A={3:0}, D={4:0}, arg={0:0}, g=0, id={5:0}] [L697] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[g]],BinaryExpression[COMPLEQ,IdentifierExpression[g],IntegerLiteral[17]]],BinaryExpression[COMPLEQ,IdentifierExpression[g],IntegerLiteral[127]]],BinaryExpression[COMPEQ,BinaryExpression[ARITHMOD,IdentifierExpression[g],IntegerLiteral[17]],IntegerLiteral[0]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[17]]]]]] VAL [A={3:0}, D={4:0}, arg={0:0}, g=0, id={5:0}] [L698] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[g]],BinaryExpression[COMPLEQ,IdentifierExpression[g],IntegerLiteral[17]]],BinaryExpression[COMPLEQ,IdentifierExpression[g],IntegerLiteral[127]]],BinaryExpression[COMPEQ,BinaryExpression[ARITHMOD,IdentifierExpression[g],IntegerLiteral[17]],IntegerLiteral[0]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[17]]]]]] [L698] CALL 0 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 0 !(cond) VAL [A={3:0}, D={4:0}, \old(cond)=0, arg={0:0}, cond=0, g=0] [L19] 0 reach_error() VAL [A={3:0}, D={4:0}, \old(cond)=0, arg={0:0}, cond=0, g=0] - UnprovableResult [Line: 694]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 694]: 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: 685]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 686]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 687]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 69 locations, 19 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 210 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 140 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 275 IncrementalHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 28 mSDtfsCounter, 275 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=1, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 161 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-02-02 09:36:22,504 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