./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_42-traces-ex-mini_true.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_42-traces-ex-mini_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cb09d658 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_42-traces-ex-mini_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_42-traces-ex-mini_true.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-cb09d65-m [2024-01-27 23:06:59,181 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 23:06:59,244 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 23:06:59,249 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 23:06:59,250 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 23:06:59,267 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 23:06:59,268 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 23:06:59,268 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 23:06:59,269 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 23:06:59,269 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 23:06:59,269 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 23:06:59,269 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 23:06:59,270 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 23:06:59,270 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 23:06:59,270 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 23:06:59,271 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 23:06:59,271 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 23:06:59,271 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 23:06:59,271 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 23:06:59,272 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 23:06:59,272 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 23:06:59,274 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 23:06:59,275 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 23:06:59,275 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 23:06:59,275 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 23:06:59,275 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 23:06:59,275 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 23:06:59,276 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 23:06:59,276 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 23:06:59,276 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 23:06:59,277 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 23:06:59,277 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 23:06:59,277 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:06:59,277 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 23:06:59,278 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 23:06:59,278 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 23:06:59,278 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 23:06:59,278 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 23:06:59,278 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 23:06:59,278 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 23:06:59,279 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 23:06:59,279 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 23:06:59,279 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 23:06:59,279 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 23:06:59,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 23:06:59,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 23:06:59,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 23:06:59,482 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 23:06:59,483 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 23:06:59,484 INFO L431 ainManager$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_42-traces-ex-mini_true.yml/witness.yml [2024-01-27 23:06:59,610 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 23:06:59,610 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 23:06:59,612 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_42-traces-ex-mini_true.i [2024-01-27 23:07:00,667 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 23:07:00,847 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 23:07:00,848 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_42-traces-ex-mini_true.i [2024-01-27 23:07:00,872 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc2a7a3dd/6e23ebeff5d7485a931a19c046b2feb0/FLAG20e6acb50 [2024-01-27 23:07:00,884 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc2a7a3dd/6e23ebeff5d7485a931a19c046b2feb0 [2024-01-27 23:07:00,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 23:07:00,885 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 23:07:00,886 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 23:07:00,886 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 23:07:00,893 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 23:07:00,894 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:06:59" (1/2) ... [2024-01-27 23:07:00,895 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@547861 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:00, skipping insertion in model container [2024-01-27 23:07:00,895 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:06:59" (1/2) ... [2024-01-27 23:07:00,896 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@546456e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:00, skipping insertion in model container [2024-01-27 23:07:00,896 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:07:00" (2/2) ... [2024-01-27 23:07:00,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@547861 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:00, skipping insertion in model container [2024-01-27 23:07:00,897 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:07:00" (2/2) ... [2024-01-27 23:07:00,897 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 23:07:00,926 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 23:07:00,927 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] g == 17 [2024-01-27 23:07:00,928 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-27 23:07:00,932 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] g == 17 [2024-01-27 23:07:00,932 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (unsigned long )arg == 0UL [2024-01-27 23:07:00,932 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] g == 42 [2024-01-27 23:07:00,932 INFO L98 nessWitnessExtractor]: Location invariant before [L703-L703] g == 17 [2024-01-27 23:07:00,932 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (unsigned long )arg == 0UL [2024-01-27 23:07:00,932 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] g == 17 [2024-01-27 23:07:00,933 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (unsigned long )arg == 0UL [2024-01-27 23:07:00,933 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-01-27 23:07:00,933 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g == 17 [2024-01-27 23:07:00,933 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-27 23:07:00,933 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g == 17 [2024-01-27 23:07:00,933 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g == 17 [2024-01-27 23:07:00,933 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] g == 42 [2024-01-27 23:07:00,933 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (unsigned long )arg == 0UL [2024-01-27 23:07:00,933 INFO L98 nessWitnessExtractor]: Location invariant before [L696-L696] g == 17 [2024-01-27 23:07:00,933 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] g == 17 [2024-01-27 23:07:00,974 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 23:07:01,114 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_42-traces-ex-mini_true.i[1091,1104] [2024-01-27 23:07:01,224 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:07:01,233 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 23:07:01,244 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_42-traces-ex-mini_true.i[1091,1104] [2024-01-27 23:07:01,245 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 Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-27 23:07:01,302 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:07:01,324 INFO L206 MainTranslator]: Completed translation [2024-01-27 23:07:01,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:01 WrapperNode [2024-01-27 23:07:01,325 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 23:07:01,326 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 23:07:01,326 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 23:07:01,326 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 23:07:01,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:01" (1/1) ... [2024-01-27 23:07:01,348 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:01" (1/1) ... [2024-01-27 23:07:01,365 INFO L138 Inliner]: procedures = 163, calls = 40, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2024-01-27 23:07:01,366 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 23:07:01,366 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 23:07:01,366 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 23:07:01,368 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 23:07:01,375 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:01" (1/1) ... [2024-01-27 23:07:01,375 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:01" (1/1) ... [2024-01-27 23:07:01,381 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:01" (1/1) ... [2024-01-27 23:07:01,391 INFO L175 MemorySlicer]: Split 18 memory accesses to 5 slices as follows [2, 5, 5, 1, 5]. 28 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 0, 5]. The 1 writes are split as follows [0, 0, 0, 1, 0]. [2024-01-27 23:07:01,391 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:01" (1/1) ... [2024-01-27 23:07:01,391 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:01" (1/1) ... [2024-01-27 23:07:01,398 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:01" (1/1) ... [2024-01-27 23:07:01,399 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:01" (1/1) ... [2024-01-27 23:07:01,400 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:01" (1/1) ... [2024-01-27 23:07:01,401 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:01" (1/1) ... [2024-01-27 23:07:01,410 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 23:07:01,411 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 23:07:01,411 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 23:07:01,411 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 23:07:01,412 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:01" (1/1) ... [2024-01-27 23:07:01,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:07:01,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 23:07:01,465 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) [2024-01-27 23:07:01,467 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 [2024-01-27 23:07:01,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 23:07:01,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 23:07:01,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 23:07:01,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 23:07:01,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-27 23:07:01,521 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-27 23:07:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 23:07:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 23:07:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-27 23:07:01,522 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-27 23:07:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 23:07:01,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 23:07:01,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 23:07:01,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 23:07:01,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 23:07:01,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-27 23:07:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-27 23:07:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 23:07:01,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 23:07:01,529 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 23:07:01,855 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 23:07:01,856 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 23:07:02,066 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 23:07:02,067 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 23:07:02,146 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 23:07:02,147 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 23:07:02,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:07:02 BoogieIcfgContainer [2024-01-27 23:07:02,147 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 23:07:02,149 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 23:07:02,149 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 23:07:02,151 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 23:07:02,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:06:59" (1/4) ... [2024-01-27 23:07:02,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@208d9fed and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 11:07:02, skipping insertion in model container [2024-01-27 23:07:02,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 11:07:00" (2/4) ... [2024-01-27 23:07:02,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@208d9fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:07:02, skipping insertion in model container [2024-01-27 23:07:02,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:01" (3/4) ... [2024-01-27 23:07:02,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@208d9fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:07:02, skipping insertion in model container [2024-01-27 23:07:02,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:07:02" (4/4) ... [2024-01-27 23:07:02,156 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_42-traces-ex-mini_true.i [2024-01-27 23:07:02,171 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 23:07:02,171 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2024-01-27 23:07:02,171 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 23:07:02,234 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-27 23:07:02,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 62 transitions, 128 flow [2024-01-27 23:07:02,292 INFO L124 PetriNetUnfolderBase]: 1/61 cut-off events. [2024-01-27 23:07:02,292 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:07:02,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 61 events. 1/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 99 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2024-01-27 23:07:02,296 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 62 transitions, 128 flow [2024-01-27 23:07:02,299 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 61 transitions, 125 flow [2024-01-27 23:07:02,311 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 23:07:02,317 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;@12ca7682, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 23:07:02,317 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-01-27 23:07:02,319 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 23:07:02,320 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 23:07:02,320 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:07:02,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:02,320 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 23:07:02,321 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-01-27 23:07:02,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:02,325 INFO L85 PathProgramCache]: Analyzing trace with hash 8453, now seen corresponding path program 1 times [2024-01-27 23:07:02,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:02,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18071024] [2024-01-27 23:07:02,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:02,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:02,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:02,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:07:02,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:02,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18071024] [2024-01-27 23:07:02,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18071024] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:02,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:02,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:07:02,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297644400] [2024-01-27 23:07:02,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:02,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:07:02,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:02,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:07:02,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:07:02,591 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 62 [2024-01-27 23:07:02,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 61 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-01-27 23:07:02,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:02,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 62 [2024-01-27 23:07:02,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:02,750 INFO L124 PetriNetUnfolderBase]: 144/566 cut-off events. [2024-01-27 23:07:02,750 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:07:02,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 926 conditions, 566 events. 144/566 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3410 event pairs, 99 based on Foata normal form. 31/529 useless extension candidates. Maximal degree in co-relation 915. Up to 266 conditions per place. [2024-01-27 23:07:02,755 INFO L140 encePairwiseOnDemand]: 46/62 looper letters, 37 selfloop transitions, 7 changer transitions 0/71 dead transitions. [2024-01-27 23:07:02,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 71 transitions, 233 flow [2024-01-27 23:07:02,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:07:02,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:07:02,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 139 transitions. [2024-01-27 23:07:02,765 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7473118279569892 [2024-01-27 23:07:02,766 INFO L175 Difference]: Start difference. First operand has 64 places, 61 transitions, 125 flow. Second operand 3 states and 139 transitions. [2024-01-27 23:07:02,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 71 transitions, 233 flow [2024-01-27 23:07:02,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 71 transitions, 232 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 23:07:02,771 INFO L231 Difference]: Finished difference. Result has 64 places, 61 transitions, 170 flow [2024-01-27 23:07:02,772 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=64, PETRI_TRANSITIONS=61} [2024-01-27 23:07:02,775 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 0 predicate places. [2024-01-27 23:07:02,775 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 61 transitions, 170 flow [2024-01-27 23:07:02,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-01-27 23:07:02,775 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:02,776 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-27 23:07:02,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 23:07:02,776 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-01-27 23:07:02,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:02,777 INFO L85 PathProgramCache]: Analyzing trace with hash 252148998, now seen corresponding path program 1 times [2024-01-27 23:07:02,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:02,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346750569] [2024-01-27 23:07:02,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:02,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:02,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:02,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:07:02,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:02,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346750569] [2024-01-27 23:07:02,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346750569] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:02,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:02,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 23:07:02,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848881010] [2024-01-27 23:07:02,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:02,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:07:02,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:02,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:07:02,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 23:07:02,962 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 62 [2024-01-27 23:07:02,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 61 transitions, 170 flow. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 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) [2024-01-27 23:07:02,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:02,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 62 [2024-01-27 23:07:02,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:03,053 INFO L124 PetriNetUnfolderBase]: 100/467 cut-off events. [2024-01-27 23:07:03,053 INFO L125 PetriNetUnfolderBase]: For 109/112 co-relation queries the response was YES. [2024-01-27 23:07:03,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 832 conditions, 467 events. 100/467 cut-off events. For 109/112 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2662 event pairs, 13 based on Foata normal form. 88/542 useless extension candidates. Maximal degree in co-relation 818. Up to 214 conditions per place. [2024-01-27 23:07:03,056 INFO L140 encePairwiseOnDemand]: 53/62 looper letters, 30 selfloop transitions, 2 changer transitions 0/64 dead transitions. [2024-01-27 23:07:03,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 64 transitions, 242 flow [2024-01-27 23:07:03,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 23:07:03,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 23:07:03,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 170 transitions. [2024-01-27 23:07:03,058 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6854838709677419 [2024-01-27 23:07:03,058 INFO L175 Difference]: Start difference. First operand has 64 places, 61 transitions, 170 flow. Second operand 4 states and 170 transitions. [2024-01-27 23:07:03,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 64 transitions, 242 flow [2024-01-27 23:07:03,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 64 transitions, 228 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:07:03,062 INFO L231 Difference]: Finished difference. Result has 58 places, 54 transitions, 146 flow [2024-01-27 23:07:03,062 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=146, PETRI_PLACES=58, PETRI_TRANSITIONS=54} [2024-01-27 23:07:03,063 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -6 predicate places. [2024-01-27 23:07:03,063 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 54 transitions, 146 flow [2024-01-27 23:07:03,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 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) [2024-01-27 23:07:03,063 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:03,064 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:07:03,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 23:07:03,064 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-01-27 23:07:03,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:03,066 INFO L85 PathProgramCache]: Analyzing trace with hash 12644716, now seen corresponding path program 1 times [2024-01-27 23:07:03,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:03,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771016278] [2024-01-27 23:07:03,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:03,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:03,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:07:03,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:03,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771016278] [2024-01-27 23:07:03,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771016278] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:03,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:03,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 23:07:03,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316581703] [2024-01-27 23:07:03,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:03,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:07:03,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:03,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:07:03,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:07:03,147 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 62 [2024-01-27 23:07:03,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 54 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2024-01-27 23:07:03,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:03,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 62 [2024-01-27 23:07:03,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:03,206 INFO L124 PetriNetUnfolderBase]: 122/412 cut-off events. [2024-01-27 23:07:03,206 INFO L125 PetriNetUnfolderBase]: For 63/69 co-relation queries the response was YES. [2024-01-27 23:07:03,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 805 conditions, 412 events. 122/412 cut-off events. For 63/69 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2113 event pairs, 95 based on Foata normal form. 44/442 useless extension candidates. Maximal degree in co-relation 791. Up to 222 conditions per place. [2024-01-27 23:07:03,208 INFO L140 encePairwiseOnDemand]: 54/62 looper letters, 28 selfloop transitions, 2 changer transitions 5/57 dead transitions. [2024-01-27 23:07:03,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 57 transitions, 214 flow [2024-01-27 23:07:03,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:07:03,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:07:03,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2024-01-27 23:07:03,210 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7526881720430108 [2024-01-27 23:07:03,210 INFO L175 Difference]: Start difference. First operand has 58 places, 54 transitions, 146 flow. Second operand 3 states and 140 transitions. [2024-01-27 23:07:03,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 57 transitions, 214 flow [2024-01-27 23:07:03,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 57 transitions, 211 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:07:03,212 INFO L231 Difference]: Finished difference. Result has 56 places, 45 transitions, 119 flow [2024-01-27 23:07:03,212 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=56, PETRI_TRANSITIONS=45} [2024-01-27 23:07:03,212 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -8 predicate places. [2024-01-27 23:07:03,213 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 45 transitions, 119 flow [2024-01-27 23:07:03,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2024-01-27 23:07:03,213 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:03,213 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:07:03,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 23:07:03,214 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-01-27 23:07:03,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:03,214 INFO L85 PathProgramCache]: Analyzing trace with hash -246290243, now seen corresponding path program 1 times [2024-01-27 23:07:03,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:03,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572280241] [2024-01-27 23:07:03,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:03,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:03,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:07:03,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:03,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572280241] [2024-01-27 23:07:03,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572280241] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:03,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:03,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 23:07:03,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172150055] [2024-01-27 23:07:03,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:03,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:07:03,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:03,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:07:03,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 23:07:03,375 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 62 [2024-01-27 23:07:03,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 45 transitions, 119 flow. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:07:03,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:03,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 62 [2024-01-27 23:07:03,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:03,440 INFO L124 PetriNetUnfolderBase]: 109/360 cut-off events. [2024-01-27 23:07:03,440 INFO L125 PetriNetUnfolderBase]: For 96/103 co-relation queries the response was YES. [2024-01-27 23:07:03,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 747 conditions, 360 events. 109/360 cut-off events. For 96/103 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1748 event pairs, 71 based on Foata normal form. 3/356 useless extension candidates. Maximal degree in co-relation 734. Up to 161 conditions per place. [2024-01-27 23:07:03,442 INFO L140 encePairwiseOnDemand]: 56/62 looper letters, 35 selfloop transitions, 7 changer transitions 4/61 dead transitions. [2024-01-27 23:07:03,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 61 transitions, 253 flow [2024-01-27 23:07:03,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 23:07:03,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 23:07:03,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 178 transitions. [2024-01-27 23:07:03,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5741935483870968 [2024-01-27 23:07:03,443 INFO L175 Difference]: Start difference. First operand has 56 places, 45 transitions, 119 flow. Second operand 5 states and 178 transitions. [2024-01-27 23:07:03,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 61 transitions, 253 flow [2024-01-27 23:07:03,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 61 transitions, 245 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:07:03,445 INFO L231 Difference]: Finished difference. Result has 53 places, 45 transitions, 131 flow [2024-01-27 23:07:03,445 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=131, PETRI_PLACES=53, PETRI_TRANSITIONS=45} [2024-01-27 23:07:03,446 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -11 predicate places. [2024-01-27 23:07:03,446 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 45 transitions, 131 flow [2024-01-27 23:07:03,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:07:03,446 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:03,446 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] [2024-01-27 23:07:03,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 23:07:03,447 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-01-27 23:07:03,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:03,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1078590265, now seen corresponding path program 1 times [2024-01-27 23:07:03,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:03,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253152830] [2024-01-27 23:07:03,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:03,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:03,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:03,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:07:03,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:03,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253152830] [2024-01-27 23:07:03,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253152830] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:03,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:03,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 23:07:03,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681829575] [2024-01-27 23:07:03,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:03,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 23:07:03,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:03,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 23:07:03,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-27 23:07:03,586 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 62 [2024-01-27 23:07:03,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 45 transitions, 131 flow. Second operand has 5 states, 5 states have (on average 43.0) internal successors, (215), 5 states have internal predecessors, (215), 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) [2024-01-27 23:07:03,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:03,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 62 [2024-01-27 23:07:03,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:03,631 INFO L124 PetriNetUnfolderBase]: 30/169 cut-off events. [2024-01-27 23:07:03,631 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-01-27 23:07:03,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 169 events. 30/169 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 583 event pairs, 12 based on Foata normal form. 8/170 useless extension candidates. Maximal degree in co-relation 307. Up to 55 conditions per place. [2024-01-27 23:07:03,632 INFO L140 encePairwiseOnDemand]: 57/62 looper letters, 18 selfloop transitions, 5 changer transitions 0/46 dead transitions. [2024-01-27 23:07:03,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 46 transitions, 173 flow [2024-01-27 23:07:03,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 23:07:03,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 23:07:03,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 189 transitions. [2024-01-27 23:07:03,633 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7620967741935484 [2024-01-27 23:07:03,633 INFO L175 Difference]: Start difference. First operand has 53 places, 45 transitions, 131 flow. Second operand 4 states and 189 transitions. [2024-01-27 23:07:03,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 46 transitions, 173 flow [2024-01-27 23:07:03,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 46 transitions, 163 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-01-27 23:07:03,635 INFO L231 Difference]: Finished difference. Result has 51 places, 41 transitions, 114 flow [2024-01-27 23:07:03,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=114, PETRI_PLACES=51, PETRI_TRANSITIONS=41} [2024-01-27 23:07:03,637 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -13 predicate places. [2024-01-27 23:07:03,637 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 41 transitions, 114 flow [2024-01-27 23:07:03,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.0) internal successors, (215), 5 states have internal predecessors, (215), 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) [2024-01-27 23:07:03,638 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:03,638 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:07:03,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 23:07:03,638 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-01-27 23:07:03,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:03,639 INFO L85 PathProgramCache]: Analyzing trace with hash 435412947, now seen corresponding path program 1 times [2024-01-27 23:07:03,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:03,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435710278] [2024-01-27 23:07:03,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:03,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:03,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:07:03,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:03,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435710278] [2024-01-27 23:07:03,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435710278] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:03,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:03,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-27 23:07:03,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501625501] [2024-01-27 23:07:03,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:03,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-27 23:07:03,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:03,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-27 23:07:03,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-01-27 23:07:03,825 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 62 [2024-01-27 23:07:03,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 41 transitions, 114 flow. Second operand has 6 states, 6 states have (on average 42.833333333333336) internal successors, (257), 6 states have internal predecessors, (257), 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) [2024-01-27 23:07:03,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:03,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 62 [2024-01-27 23:07:03,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:03,870 INFO L124 PetriNetUnfolderBase]: 22/127 cut-off events. [2024-01-27 23:07:03,871 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-01-27 23:07:03,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 127 events. 22/127 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 331 event pairs, 8 based on Foata normal form. 3/124 useless extension candidates. Maximal degree in co-relation 226. Up to 44 conditions per place. [2024-01-27 23:07:03,872 INFO L140 encePairwiseOnDemand]: 58/62 looper letters, 0 selfloop transitions, 0 changer transitions 44/44 dead transitions. [2024-01-27 23:07:03,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 44 transitions, 166 flow [2024-01-27 23:07:03,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 23:07:03,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 23:07:03,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 189 transitions. [2024-01-27 23:07:03,873 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7620967741935484 [2024-01-27 23:07:03,873 INFO L175 Difference]: Start difference. First operand has 51 places, 41 transitions, 114 flow. Second operand 4 states and 189 transitions. [2024-01-27 23:07:03,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 44 transitions, 166 flow [2024-01-27 23:07:03,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 44 transitions, 144 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-01-27 23:07:03,876 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2024-01-27 23:07:03,876 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2024-01-27 23:07:03,879 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -17 predicate places. [2024-01-27 23:07:03,879 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2024-01-27 23:07:03,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 42.833333333333336) internal successors, (257), 6 states have internal predecessors, (257), 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) [2024-01-27 23:07:03,882 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 29 remaining) [2024-01-27 23:07:03,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 29 remaining) [2024-01-27 23:07:03,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (26 of 29 remaining) [2024-01-27 23:07:03,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 29 remaining) [2024-01-27 23:07:03,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 29 remaining) [2024-01-27 23:07:03,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 29 remaining) [2024-01-27 23:07:03,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 29 remaining) [2024-01-27 23:07:03,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 29 remaining) [2024-01-27 23:07:03,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 29 remaining) [2024-01-27 23:07:03,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 29 remaining) [2024-01-27 23:07:03,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 29 remaining) [2024-01-27 23:07:03,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 29 remaining) [2024-01-27 23:07:03,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 29 remaining) [2024-01-27 23:07:03,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 29 remaining) [2024-01-27 23:07:03,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 29 remaining) [2024-01-27 23:07:03,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 29 remaining) [2024-01-27 23:07:03,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 29 remaining) [2024-01-27 23:07:03,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 29 remaining) [2024-01-27 23:07:03,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 29 remaining) [2024-01-27 23:07:03,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 29 remaining) [2024-01-27 23:07:03,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 29 remaining) [2024-01-27 23:07:03,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 29 remaining) [2024-01-27 23:07:03,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 29 remaining) [2024-01-27 23:07:03,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 29 remaining) [2024-01-27 23:07:03,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 29 remaining) [2024-01-27 23:07:03,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 29 remaining) [2024-01-27 23:07:03,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 29 remaining) [2024-01-27 23:07:03,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 29 remaining) [2024-01-27 23:07:03,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 29 remaining) [2024-01-27 23:07:03,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 23:07:03,895 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-01-27 23:07:03,899 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 23:07:03,900 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 23:07:03,906 INFO L503 ceAbstractionStarter]: Automizer considered 16 witness invariants [2024-01-27 23:07:03,906 INFO L504 ceAbstractionStarter]: WitnessConsidered=16 [2024-01-27 23:07:03,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 11:07:03 BasicIcfg [2024-01-27 23:07:03,907 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 23:07:03,909 INFO L158 Benchmark]: Toolchain (without parser) took 3022.03ms. Allocated memory was 190.8MB in the beginning and 276.8MB in the end (delta: 86.0MB). Free memory was 113.7MB in the beginning and 226.2MB in the end (delta: -112.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:07:03,909 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 127.9MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:07:03,909 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 190.8MB. Free memory is still 162.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:07:03,909 INFO L158 Benchmark]: CACSL2BoogieTranslator took 438.94ms. Allocated memory is still 190.8MB. Free memory was 113.5MB in the beginning and 90.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-27 23:07:03,910 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.04ms. Allocated memory is still 190.8MB. Free memory was 90.4MB in the beginning and 88.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 23:07:03,910 INFO L158 Benchmark]: Boogie Preprocessor took 44.12ms. Allocated memory is still 190.8MB. Free memory was 88.5MB in the beginning and 86.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 23:07:03,910 INFO L158 Benchmark]: RCFGBuilder took 736.18ms. Allocated memory is still 190.8MB. Free memory was 86.2MB in the beginning and 136.6MB in the end (delta: -50.4MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2024-01-27 23:07:03,910 INFO L158 Benchmark]: TraceAbstraction took 1758.45ms. Allocated memory was 190.8MB in the beginning and 276.8MB in the end (delta: 86.0MB). Free memory was 135.9MB in the beginning and 226.2MB in the end (delta: -90.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:07:03,913 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 127.9MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.37ms. Allocated memory is still 190.8MB. Free memory is still 162.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 438.94ms. Allocated memory is still 190.8MB. Free memory was 113.5MB in the beginning and 90.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.04ms. Allocated memory is still 190.8MB. Free memory was 90.4MB in the beginning and 88.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.12ms. Allocated memory is still 190.8MB. Free memory was 88.5MB in the beginning and 86.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 736.18ms. Allocated memory is still 190.8MB. Free memory was 86.2MB in the beginning and 136.6MB in the end (delta: -50.4MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1758.45ms. Allocated memory was 190.8MB in the beginning and 276.8MB in the end (delta: 86.0MB). Free memory was 135.9MB in the beginning and 226.2MB in the end (delta: -90.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 696]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 702]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 703]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 686]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 692]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 95 locations, 29 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: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 274 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 185 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 342 IncrementalHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 48 mSDtfsCounter, 342 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=1, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 17 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-27 23:07:03,935 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 Result: TRUE