./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_35-traces-ex-2_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_35-traces-ex-2_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8857f20b 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_35-traces-ex-2_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_35-traces-ex-2_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-8857f20-m [2024-01-29 22:55:21,135 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 22:55:21,200 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 22:55:21,219 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 22:55:21,221 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 22:55:21,246 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 22:55:21,247 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 22:55:21,247 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 22:55:21,248 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 22:55:21,251 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 22:55:21,251 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 22:55:21,252 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 22:55:21,253 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 22:55:21,254 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 22:55:21,254 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 22:55:21,254 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 22:55:21,254 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 22:55:21,254 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 22:55:21,255 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 22:55:21,255 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 22:55:21,255 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 22:55:21,268 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 22:55:21,269 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 22:55:21,269 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 22:55:21,269 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 22:55:21,269 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 22:55:21,269 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 22:55:21,270 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 22:55:21,270 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 22:55:21,270 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 22:55:21,271 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 22:55:21,271 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 22:55:21,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:55:21,272 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 22:55:21,272 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 22:55:21,272 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 22:55:21,272 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 22:55:21,272 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 22:55:21,273 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 22:55:21,273 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 22:55:21,273 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 22:55:21,279 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 22:55:21,279 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 22:55:21,279 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 22:55:21,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 22:55:21,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 22:55:21,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 22:55:21,535 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 22:55:21,536 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 22:55:21,537 INFO L431 ainManager$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_35-traces-ex-2_true.yml/witness.yml [2024-01-29 22:55:21,632 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 22:55:21,632 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 22:55:21,634 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_35-traces-ex-2_true.i [2024-01-29 22:55:22,675 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 22:55:22,890 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 22:55:22,891 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_35-traces-ex-2_true.i [2024-01-29 22:55:22,909 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2b4121e8/9372ef9c8d364521abb902a4aff3ac55/FLAGdec53982f [2024-01-29 22:55:22,924 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2b4121e8/9372ef9c8d364521abb902a4aff3ac55 [2024-01-29 22:55:22,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 22:55:22,925 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 22:55:22,929 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 22:55:22,929 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 22:55:22,933 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 22:55:22,934 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:55:21" (1/2) ... [2024-01-29 22:55:22,936 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23aa98d1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:55:22, skipping insertion in model container [2024-01-29 22:55:22,936 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:55:21" (1/2) ... [2024-01-29 22:55:22,938 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@28fcdc4e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:55:22, skipping insertion in model container [2024-01-29 22:55:22,938 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:55:22" (2/2) ... [2024-01-29 22:55:22,938 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23aa98d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:22, skipping insertion in model container [2024-01-29 22:55:22,938 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:55:22" (2/2) ... [2024-01-29 22:55:22,938 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 22:55:22,973 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 22:55:22,974 INFO L98 nessWitnessExtractor]: Location invariant before [L697-L697] g == 0 [2024-01-29 22:55:22,974 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (g == 1) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:22,974 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g == 1 [2024-01-29 22:55:22,974 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (g == 0) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:22,974 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] g == 0 [2024-01-29 22:55:22,975 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] g == 0 [2024-01-29 22:55:22,975 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (g == 0) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:22,975 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] (g == 0) && (g == 0) [2024-01-29 22:55:22,975 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g == 0 [2024-01-29 22:55:22,975 INFO L98 nessWitnessExtractor]: Location invariant before [L685-L685] (unsigned long )arg == 0UL [2024-01-29 22:55:22,975 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] g == 1 [2024-01-29 22:55:22,975 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (g == 1) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:22,975 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] g == 0 [2024-01-29 22:55:22,976 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] g == 0 [2024-01-29 22:55:22,976 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-01-29 22:55:22,976 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] g == 0 [2024-01-29 22:55:22,976 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (g == 0) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:22,976 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] g == 0 [2024-01-29 22:55:22,976 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] g == 0 [2024-01-29 22:55:22,976 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] g == 0 [2024-01-29 22:55:22,977 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (g == 0) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:22,977 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] g == 1 [2024-01-29 22:55:22,977 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (g == 1) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:23,016 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 22:55:23,130 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_35-traces-ex-2_true.i[1088,1101] [2024-01-29 22:55:23,284 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:55:23,296 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 22:55:23,306 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_35-traces-ex-2_true.i[1088,1101] [2024-01-29 22:55:23,306 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 Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 22:55:23,381 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:55:23,410 INFO L206 MainTranslator]: Completed translation [2024-01-29 22:55:23,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:23 WrapperNode [2024-01-29 22:55:23,412 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 22:55:23,413 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 22:55:23,413 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 22:55:23,413 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 22:55:23,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:23" (1/1) ... [2024-01-29 22:55:23,429 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:23" (1/1) ... [2024-01-29 22:55:23,456 INFO L138 Inliner]: procedures = 163, calls = 34, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2024-01-29 22:55:23,456 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 22:55:23,457 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 22:55:23,457 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 22:55:23,457 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 22:55:23,466 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:23" (1/1) ... [2024-01-29 22:55:23,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:23" (1/1) ... [2024-01-29 22:55:23,469 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:23" (1/1) ... [2024-01-29 22:55:23,480 INFO L175 MemorySlicer]: Split 13 memory accesses to 4 slices as follows [2, 5, 5, 1]. 38 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2024-01-29 22:55:23,480 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:23" (1/1) ... [2024-01-29 22:55:23,481 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:23" (1/1) ... [2024-01-29 22:55:23,489 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:23" (1/1) ... [2024-01-29 22:55:23,491 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:23" (1/1) ... [2024-01-29 22:55:23,492 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:23" (1/1) ... [2024-01-29 22:55:23,492 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:23" (1/1) ... [2024-01-29 22:55:23,494 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 22:55:23,495 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 22:55:23,495 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 22:55:23,495 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 22:55:23,496 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:23" (1/1) ... [2024-01-29 22:55:23,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:55:23,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:55:23,536 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) [2024-01-29 22:55:23,544 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 [2024-01-29 22:55:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 22:55:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 22:55:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 22:55:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 22:55:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-29 22:55:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 22:55:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 22:55:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-29 22:55:23,573 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-29 22:55:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 22:55:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 22:55:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 22:55:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 22:55:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 22:55:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-29 22:55:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 22:55:23,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 22:55:23,575 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 22:55:23,709 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 22:55:23,711 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 22:55:23,923 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 22:55:23,924 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 22:55:24,025 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 22:55:24,025 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-29 22:55:24,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:55:24 BoogieIcfgContainer [2024-01-29 22:55:24,026 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 22:55:24,027 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 22:55:24,028 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 22:55:24,030 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 22:55:24,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:55:21" (1/4) ... [2024-01-29 22:55:24,031 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58872f64 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:55:24, skipping insertion in model container [2024-01-29 22:55:24,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 10:55:22" (2/4) ... [2024-01-29 22:55:24,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58872f64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:55:24, skipping insertion in model container [2024-01-29 22:55:24,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:23" (3/4) ... [2024-01-29 22:55:24,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58872f64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:55:24, skipping insertion in model container [2024-01-29 22:55:24,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:55:24" (4/4) ... [2024-01-29 22:55:24,034 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_35-traces-ex-2_true.i [2024-01-29 22:55:24,049 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 22:55:24,049 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-01-29 22:55:24,049 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 22:55:24,113 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-29 22:55:24,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 72 transitions, 148 flow [2024-01-29 22:55:24,188 INFO L124 PetriNetUnfolderBase]: 1/71 cut-off events. [2024-01-29 22:55:24,188 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:55:24,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 1/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 90 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2024-01-29 22:55:24,191 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 72 transitions, 148 flow [2024-01-29 22:55:24,194 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 71 transitions, 145 flow [2024-01-29 22:55:24,200 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:55:24,206 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;@2fa3a170, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:55:24,206 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-01-29 22:55:24,208 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:55:24,208 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 22:55:24,208 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:55:24,208 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:24,209 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 22:55:24,209 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 36 more)] === [2024-01-29 22:55:24,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:24,213 INFO L85 PathProgramCache]: Analyzing trace with hash 8518, now seen corresponding path program 1 times [2024-01-29 22:55:24,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:24,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462643183] [2024-01-29 22:55:24,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:24,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:24,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:24,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:24,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462643183] [2024-01-29 22:55:24,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462643183] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:24,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:24,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 22:55:24,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172205297] [2024-01-29 22:55:24,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:24,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:55:24,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:24,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:55:24,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:55:24,539 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 72 [2024-01-29 22:55:24,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 71 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2024-01-29 22:55:24,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:24,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 72 [2024-01-29 22:55:24,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:24,779 INFO L124 PetriNetUnfolderBase]: 269/932 cut-off events. [2024-01-29 22:55:24,779 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:55:24,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1608 conditions, 932 events. 269/932 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 5797 event pairs, 171 based on Foata normal form. 83/967 useless extension candidates. Maximal degree in co-relation 1597. Up to 459 conditions per place. [2024-01-29 22:55:24,790 INFO L140 encePairwiseOnDemand]: 50/72 looper letters, 45 selfloop transitions, 7 changer transitions 0/78 dead transitions. [2024-01-29 22:55:24,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 78 transitions, 263 flow [2024-01-29 22:55:24,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:55:24,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:55:24,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 150 transitions. [2024-01-29 22:55:24,803 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6944444444444444 [2024-01-29 22:55:24,805 INFO L175 Difference]: Start difference. First operand has 74 places, 71 transitions, 145 flow. Second operand 3 states and 150 transitions. [2024-01-29 22:55:24,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 78 transitions, 263 flow [2024-01-29 22:55:24,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 78 transitions, 262 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 22:55:24,814 INFO L231 Difference]: Finished difference. Result has 72 places, 69 transitions, 194 flow [2024-01-29 22:55:24,816 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=72, PETRI_TRANSITIONS=69} [2024-01-29 22:55:24,819 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -2 predicate places. [2024-01-29 22:55:24,819 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 69 transitions, 194 flow [2024-01-29 22:55:24,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2024-01-29 22:55:24,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:24,820 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 22:55:24,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 22:55:24,821 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 36 more)] === [2024-01-29 22:55:24,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:24,823 INFO L85 PathProgramCache]: Analyzing trace with hash 254104825, now seen corresponding path program 1 times [2024-01-29 22:55:24,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:24,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800544902] [2024-01-29 22:55:24,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:24,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:24,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:25,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:25,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:25,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800544902] [2024-01-29 22:55:25,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800544902] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:25,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:25,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:25,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891602584] [2024-01-29 22:55:25,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:25,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:25,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:25,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:25,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:25,066 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 72 [2024-01-29 22:55:25,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 69 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2024-01-29 22:55:25,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:25,073 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 72 [2024-01-29 22:55:25,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:25,183 INFO L124 PetriNetUnfolderBase]: 133/753 cut-off events. [2024-01-29 22:55:25,183 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2024-01-29 22:55:25,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1285 conditions, 753 events. 133/753 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 5131 event pairs, 35 based on Foata normal form. 9/695 useless extension candidates. Maximal degree in co-relation 1271. Up to 266 conditions per place. [2024-01-29 22:55:25,187 INFO L140 encePairwiseOnDemand]: 68/72 looper letters, 28 selfloop transitions, 2 changer transitions 0/75 dead transitions. [2024-01-29 22:55:25,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 75 transitions, 268 flow [2024-01-29 22:55:25,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:25,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:25,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 223 transitions. [2024-01-29 22:55:25,193 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7743055555555556 [2024-01-29 22:55:25,193 INFO L175 Difference]: Start difference. First operand has 72 places, 69 transitions, 194 flow. Second operand 4 states and 223 transitions. [2024-01-29 22:55:25,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 75 transitions, 268 flow [2024-01-29 22:55:25,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 75 transitions, 254 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:55:25,200 INFO L231 Difference]: Finished difference. Result has 71 places, 67 transitions, 180 flow [2024-01-29 22:55:25,200 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=180, PETRI_PLACES=71, PETRI_TRANSITIONS=67} [2024-01-29 22:55:25,201 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -3 predicate places. [2024-01-29 22:55:25,201 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 67 transitions, 180 flow [2024-01-29 22:55:25,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2024-01-29 22:55:25,201 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:25,201 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:25,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 22:55:25,202 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 36 more)] === [2024-01-29 22:55:25,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:25,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1566576356, now seen corresponding path program 1 times [2024-01-29 22:55:25,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:25,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019460792] [2024-01-29 22:55:25,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:25,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:25,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:25,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:25,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019460792] [2024-01-29 22:55:25,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019460792] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:25,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:25,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:55:25,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357621946] [2024-01-29 22:55:25,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:25,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:25,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:25,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:25,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:25,350 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 72 [2024-01-29 22:55:25,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 67 transitions, 180 flow. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2024-01-29 22:55:25,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:25,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 72 [2024-01-29 22:55:25,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:25,471 INFO L124 PetriNetUnfolderBase]: 302/962 cut-off events. [2024-01-29 22:55:25,471 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2024-01-29 22:55:25,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1990 conditions, 962 events. 302/962 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 5838 event pairs, 61 based on Foata normal form. 0/903 useless extension candidates. Maximal degree in co-relation 1976. Up to 327 conditions per place. [2024-01-29 22:55:25,477 INFO L140 encePairwiseOnDemand]: 60/72 looper letters, 57 selfloop transitions, 9 changer transitions 0/84 dead transitions. [2024-01-29 22:55:25,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 84 transitions, 354 flow [2024-01-29 22:55:25,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:25,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:25,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 145 transitions. [2024-01-29 22:55:25,479 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5034722222222222 [2024-01-29 22:55:25,479 INFO L175 Difference]: Start difference. First operand has 71 places, 67 transitions, 180 flow. Second operand 4 states and 145 transitions. [2024-01-29 22:55:25,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 84 transitions, 354 flow [2024-01-29 22:55:25,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 84 transitions, 351 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:55:25,483 INFO L231 Difference]: Finished difference. Result has 69 places, 64 transitions, 189 flow [2024-01-29 22:55:25,483 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=189, PETRI_PLACES=69, PETRI_TRANSITIONS=64} [2024-01-29 22:55:25,484 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -5 predicate places. [2024-01-29 22:55:25,484 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 64 transitions, 189 flow [2024-01-29 22:55:25,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2024-01-29 22:55:25,485 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:25,485 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:25,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 22:55:25,486 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 36 more)] === [2024-01-29 22:55:25,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:25,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1878010369, now seen corresponding path program 1 times [2024-01-29 22:55:25,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:25,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363493116] [2024-01-29 22:55:25,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:25,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:25,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:25,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:25,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363493116] [2024-01-29 22:55:25,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363493116] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:25,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:25,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:25,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681488906] [2024-01-29 22:55:25,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:25,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:25,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:25,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:25,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:25,612 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 72 [2024-01-29 22:55:25,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 64 transitions, 189 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) [2024-01-29 22:55:25,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:25,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 72 [2024-01-29 22:55:25,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:25,737 INFO L124 PetriNetUnfolderBase]: 292/916 cut-off events. [2024-01-29 22:55:25,738 INFO L125 PetriNetUnfolderBase]: For 180/183 co-relation queries the response was YES. [2024-01-29 22:55:25,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1988 conditions, 916 events. 292/916 cut-off events. For 180/183 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 5439 event pairs, 158 based on Foata normal form. 3/916 useless extension candidates. Maximal degree in co-relation 1974. Up to 414 conditions per place. [2024-01-29 22:55:25,741 INFO L140 encePairwiseOnDemand]: 63/72 looper letters, 58 selfloop transitions, 12 changer transitions 7/95 dead transitions. [2024-01-29 22:55:25,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 95 transitions, 425 flow [2024-01-29 22:55:25,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 22:55:25,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 22:55:25,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 204 transitions. [2024-01-29 22:55:25,743 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2024-01-29 22:55:25,743 INFO L175 Difference]: Start difference. First operand has 69 places, 64 transitions, 189 flow. Second operand 5 states and 204 transitions. [2024-01-29 22:55:25,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 95 transitions, 425 flow [2024-01-29 22:55:25,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 95 transitions, 401 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 22:55:25,746 INFO L231 Difference]: Finished difference. Result has 68 places, 65 transitions, 201 flow [2024-01-29 22:55:25,746 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=201, PETRI_PLACES=68, PETRI_TRANSITIONS=65} [2024-01-29 22:55:25,748 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -6 predicate places. [2024-01-29 22:55:25,748 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 65 transitions, 201 flow [2024-01-29 22:55:25,748 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) [2024-01-29 22:55:25,748 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:25,748 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:25,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 22:55:25,749 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 36 more)] === [2024-01-29 22:55:25,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:25,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1439296544, now seen corresponding path program 1 times [2024-01-29 22:55:25,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:25,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681960494] [2024-01-29 22:55:25,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:25,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:25,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:25,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:25,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681960494] [2024-01-29 22:55:25,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681960494] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:25,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:25,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:55:25,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319887687] [2024-01-29 22:55:25,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:25,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:55:25,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:25,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:55:25,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:55:25,820 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 72 [2024-01-29 22:55:25,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 65 transitions, 201 flow. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 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) [2024-01-29 22:55:25,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:25,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 72 [2024-01-29 22:55:25,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:25,906 INFO L124 PetriNetUnfolderBase]: 219/677 cut-off events. [2024-01-29 22:55:25,906 INFO L125 PetriNetUnfolderBase]: For 212/214 co-relation queries the response was YES. [2024-01-29 22:55:25,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1457 conditions, 677 events. 219/677 cut-off events. For 212/214 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3575 event pairs, 162 based on Foata normal form. 72/739 useless extension candidates. Maximal degree in co-relation 1443. Up to 346 conditions per place. [2024-01-29 22:55:25,909 INFO L140 encePairwiseOnDemand]: 63/72 looper letters, 40 selfloop transitions, 4 changer transitions 0/64 dead transitions. [2024-01-29 22:55:25,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 64 transitions, 271 flow [2024-01-29 22:55:25,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:55:25,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:55:25,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 148 transitions. [2024-01-29 22:55:25,910 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6851851851851852 [2024-01-29 22:55:25,910 INFO L175 Difference]: Start difference. First operand has 68 places, 65 transitions, 201 flow. Second operand 3 states and 148 transitions. [2024-01-29 22:55:25,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 64 transitions, 271 flow [2024-01-29 22:55:25,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 64 transitions, 271 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 22:55:25,913 INFO L231 Difference]: Finished difference. Result has 67 places, 58 transitions, 179 flow [2024-01-29 22:55:25,913 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=179, PETRI_PLACES=67, PETRI_TRANSITIONS=58} [2024-01-29 22:55:25,916 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -7 predicate places. [2024-01-29 22:55:25,916 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 58 transitions, 179 flow [2024-01-29 22:55:25,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 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) [2024-01-29 22:55:25,916 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:25,916 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:25,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 22:55:25,917 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 36 more)] === [2024-01-29 22:55:25,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:25,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1668519583, now seen corresponding path program 1 times [2024-01-29 22:55:25,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:25,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795401768] [2024-01-29 22:55:25,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:25,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:25,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:25,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:25,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:25,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795401768] [2024-01-29 22:55:25,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795401768] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:25,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:25,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:25,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501889618] [2024-01-29 22:55:25,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:25,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:25,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:25,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:25,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:26,033 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 72 [2024-01-29 22:55:26,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 58 transitions, 179 flow. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 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) [2024-01-29 22:55:26,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:26,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 72 [2024-01-29 22:55:26,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:26,147 INFO L124 PetriNetUnfolderBase]: 241/695 cut-off events. [2024-01-29 22:55:26,147 INFO L125 PetriNetUnfolderBase]: For 216/216 co-relation queries the response was YES. [2024-01-29 22:55:26,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1573 conditions, 695 events. 241/695 cut-off events. For 216/216 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3496 event pairs, 31 based on Foata normal form. 38/727 useless extension candidates. Maximal degree in co-relation 1558. Up to 354 conditions per place. [2024-01-29 22:55:26,151 INFO L140 encePairwiseOnDemand]: 66/72 looper letters, 52 selfloop transitions, 5 changer transitions 0/72 dead transitions. [2024-01-29 22:55:26,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 72 transitions, 333 flow [2024-01-29 22:55:26,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:26,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:26,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 162 transitions. [2024-01-29 22:55:26,152 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5625 [2024-01-29 22:55:26,152 INFO L175 Difference]: Start difference. First operand has 67 places, 58 transitions, 179 flow. Second operand 4 states and 162 transitions. [2024-01-29 22:55:26,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 72 transitions, 333 flow [2024-01-29 22:55:26,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 72 transitions, 325 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:55:26,155 INFO L231 Difference]: Finished difference. Result has 65 places, 55 transitions, 175 flow [2024-01-29 22:55:26,155 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=175, PETRI_PLACES=65, PETRI_TRANSITIONS=55} [2024-01-29 22:55:26,157 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -9 predicate places. [2024-01-29 22:55:26,157 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 55 transitions, 175 flow [2024-01-29 22:55:26,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 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) [2024-01-29 22:55:26,158 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:26,158 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:26,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 22:55:26,158 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 36 more)] === [2024-01-29 22:55:26,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:26,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1603253734, now seen corresponding path program 1 times [2024-01-29 22:55:26,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:26,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432670964] [2024-01-29 22:55:26,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:26,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:26,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:26,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:26,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432670964] [2024-01-29 22:55:26,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432670964] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:26,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:26,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-29 22:55:26,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666802808] [2024-01-29 22:55:26,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:26,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-29 22:55:26,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:26,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-29 22:55:26,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-01-29 22:55:26,338 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 72 [2024-01-29 22:55:26,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 55 transitions, 175 flow. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 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) [2024-01-29 22:55:26,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:26,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 72 [2024-01-29 22:55:26,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:26,422 INFO L124 PetriNetUnfolderBase]: 110/343 cut-off events. [2024-01-29 22:55:26,422 INFO L125 PetriNetUnfolderBase]: For 83/83 co-relation queries the response was YES. [2024-01-29 22:55:26,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 343 events. 110/343 cut-off events. For 83/83 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1311 event pairs, 24 based on Foata normal form. 20/360 useless extension candidates. Maximal degree in co-relation 722. Up to 158 conditions per place. [2024-01-29 22:55:26,424 INFO L140 encePairwiseOnDemand]: 63/72 looper letters, 32 selfloop transitions, 9 changer transitions 13/65 dead transitions. [2024-01-29 22:55:26,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 65 transitions, 283 flow [2024-01-29 22:55:26,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-29 22:55:26,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-29 22:55:26,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 218 transitions. [2024-01-29 22:55:26,425 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5046296296296297 [2024-01-29 22:55:26,426 INFO L175 Difference]: Start difference. First operand has 65 places, 55 transitions, 175 flow. Second operand 6 states and 218 transitions. [2024-01-29 22:55:26,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 65 transitions, 283 flow [2024-01-29 22:55:26,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 65 transitions, 255 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-01-29 22:55:26,427 INFO L231 Difference]: Finished difference. Result has 60 places, 41 transitions, 117 flow [2024-01-29 22:55:26,428 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=117, PETRI_PLACES=60, PETRI_TRANSITIONS=41} [2024-01-29 22:55:26,428 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -14 predicate places. [2024-01-29 22:55:26,428 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 41 transitions, 117 flow [2024-01-29 22:55:26,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 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) [2024-01-29 22:55:26,429 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:26,429 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] [2024-01-29 22:55:26,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 22:55:26,429 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 36 more)] === [2024-01-29 22:55:26,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:26,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1060108244, now seen corresponding path program 1 times [2024-01-29 22:55:26,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:26,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219227998] [2024-01-29 22:55:26,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:26,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:55:26,440 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 22:55:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:55:26,461 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 22:55:26,461 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 22:55:26,462 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 39 remaining) [2024-01-29 22:55:26,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 39 remaining) [2024-01-29 22:55:26,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 39 remaining) [2024-01-29 22:55:26,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (35 of 39 remaining) [2024-01-29 22:55:26,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 39 remaining) [2024-01-29 22:55:26,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 39 remaining) [2024-01-29 22:55:26,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 39 remaining) [2024-01-29 22:55:26,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 39 remaining) [2024-01-29 22:55:26,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 39 remaining) [2024-01-29 22:55:26,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 39 remaining) [2024-01-29 22:55:26,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 39 remaining) [2024-01-29 22:55:26,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 39 remaining) [2024-01-29 22:55:26,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 39 remaining) [2024-01-29 22:55:26,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 39 remaining) [2024-01-29 22:55:26,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 39 remaining) [2024-01-29 22:55:26,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 39 remaining) [2024-01-29 22:55:26,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 39 remaining) [2024-01-29 22:55:26,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 39 remaining) [2024-01-29 22:55:26,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 39 remaining) [2024-01-29 22:55:26,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 39 remaining) [2024-01-29 22:55:26,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 39 remaining) [2024-01-29 22:55:26,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 39 remaining) [2024-01-29 22:55:26,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 39 remaining) [2024-01-29 22:55:26,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 39 remaining) [2024-01-29 22:55:26,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 39 remaining) [2024-01-29 22:55:26,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 39 remaining) [2024-01-29 22:55:26,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 39 remaining) [2024-01-29 22:55:26,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 39 remaining) [2024-01-29 22:55:26,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 39 remaining) [2024-01-29 22:55:26,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 39 remaining) [2024-01-29 22:55:26,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 39 remaining) [2024-01-29 22:55:26,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 39 remaining) [2024-01-29 22:55:26,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 39 remaining) [2024-01-29 22:55:26,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 39 remaining) [2024-01-29 22:55:26,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 39 remaining) [2024-01-29 22:55:26,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 39 remaining) [2024-01-29 22:55:26,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 39 remaining) [2024-01-29 22:55:26,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 39 remaining) [2024-01-29 22:55:26,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 39 remaining) [2024-01-29 22:55:26,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-29 22:55:26,469 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:26,474 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 22:55:26,475 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 22:55:26,493 INFO L503 ceAbstractionStarter]: Automizer considered 21 witness invariants [2024-01-29 22:55:26,494 INFO L504 ceAbstractionStarter]: WitnessConsidered=21 [2024-01-29 22:55:26,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 10:55:26 BasicIcfg [2024-01-29 22:55:26,494 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 22:55:26,495 INFO L158 Benchmark]: Toolchain (without parser) took 3569.49ms. Allocated memory was 144.7MB in the beginning and 205.5MB in the end (delta: 60.8MB). Free memory was 84.6MB in the beginning and 93.8MB in the end (delta: -9.2MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. [2024-01-29 22:55:26,495 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 102.8MB. Free memory was 70.0MB in the beginning and 69.9MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:55:26,495 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 102.8MB. Free memory is still 66.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:55:26,495 INFO L158 Benchmark]: CACSL2BoogieTranslator took 482.72ms. Allocated memory is still 144.7MB. Free memory was 84.6MB in the beginning and 61.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-29 22:55:26,496 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.38ms. Allocated memory is still 144.7MB. Free memory was 60.9MB in the beginning and 59.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:55:26,496 INFO L158 Benchmark]: Boogie Preprocessor took 37.58ms. Allocated memory is still 144.7MB. Free memory was 59.4MB in the beginning and 57.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:55:26,496 INFO L158 Benchmark]: RCFGBuilder took 531.26ms. Allocated memory is still 144.7MB. Free memory was 56.7MB in the beginning and 100.0MB in the end (delta: -43.2MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2024-01-29 22:55:26,496 INFO L158 Benchmark]: TraceAbstraction took 2467.01ms. Allocated memory was 144.7MB in the beginning and 205.5MB in the end (delta: 60.8MB). Free memory was 99.3MB in the beginning and 93.8MB in the end (delta: 5.5MB). Peak memory consumption was 67.8MB. Max. memory is 16.1GB. [2024-01-29 22:55:26,497 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 0.15ms. Allocated memory is still 102.8MB. Free memory was 70.0MB in the beginning and 69.9MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 102.8MB. Free memory is still 66.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 482.72ms. Allocated memory is still 144.7MB. Free memory was 84.6MB in the beginning and 61.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.38ms. Allocated memory is still 144.7MB. Free memory was 60.9MB in the beginning and 59.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.58ms. Allocated memory is still 144.7MB. Free memory was 59.4MB in the beginning and 57.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 531.26ms. Allocated memory is still 144.7MB. Free memory was 56.7MB in the beginning and 100.0MB in the end (delta: -43.2MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2467.01ms. Allocated memory was 144.7MB in the beginning and 205.5MB in the end (delta: 60.8MB). Free memory was 99.3MB in the beginning and 93.8MB in the end (delta: 5.5MB). Peak memory consumption was 67.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 699]: invariant of correctness witness can be violated invariant of correctness witness can be violated 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 B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; VAL [A={3:0}, B={4:0}, g=0, id={5:0}] [L697] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[0]]]] [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, arg={0:0}, g=0, id={5:0}] [L685] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=0] [L686] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[0]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=0] [L686] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[0]],BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=0] [L687] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[0]],BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=0] [L687] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[0]]]] [L687] 1 g = 1 VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=1] [L688] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[1]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=1] [L688] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[1]],BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=1] [L699] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[0]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, arg={0:0}, g=1, id={5:0}] - 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: 700]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 702]: 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 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: 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: 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: 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: 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. - UnprovableResult [Line: 690]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 693]: 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, 119 locations, 39 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.3s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 845 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 557 mSDsluCounter, 135 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84 mSDsCounter, 169 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 797 IncrementalHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 169 mSolverCounterUnsat, 51 mSDtfsCounter, 797 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=201occurred in iteration=4, InterpolantAutomatonStates: 29, 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, 0.5s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 350 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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! [2024-01-29 22:55:26,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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