./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_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_52-refine-protected-loop2-small_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a340643f 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_52-refine-protected-loop2-small_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_52-refine-protected-loop2-small_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-a340643-m [2024-01-27 14:49:28,145 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 14:49:28,211 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 14:49:28,217 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 14:49:28,217 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 14:49:28,241 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 14:49:28,242 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 14:49:28,242 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 14:49:28,242 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 14:49:28,245 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 14:49:28,245 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 14:49:28,246 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 14:49:28,246 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 14:49:28,247 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 14:49:28,248 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 14:49:28,248 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 14:49:28,248 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 14:49:28,248 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 14:49:28,248 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 14:49:28,249 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 14:49:28,249 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 14:49:28,249 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 14:49:28,249 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 14:49:28,249 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 14:49:28,250 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 14:49:28,250 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 14:49:28,250 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 14:49:28,250 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 14:49:28,251 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 14:49:28,251 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 14:49:28,252 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 14:49:28,252 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 14:49:28,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:49:28,252 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 14:49:28,252 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 14:49:28,252 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 14:49:28,252 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 14:49:28,253 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 14:49:28,253 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 14:49:28,253 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 14:49:28,253 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 14:49:28,253 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 14:49:28,253 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 14:49:28,254 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 14:49:28,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 14:49:28,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 14:49:28,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 14:49:28,481 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 14:49:28,481 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 14:49:28,482 INFO L431 ainManager$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_52-refine-protected-loop2-small_true.yml/witness.yml [2024-01-27 14:49:28,604 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 14:49:28,620 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 14:49:28,621 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i [2024-01-27 14:49:29,591 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 14:49:29,870 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 14:49:29,873 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i [2024-01-27 14:49:29,890 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d92874634/47a4756b639f4f40a53580d8766ce367/FLAG67315dcf0 [2024-01-27 14:49:29,903 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d92874634/47a4756b639f4f40a53580d8766ce367 [2024-01-27 14:49:29,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 14:49:29,905 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 14:49:29,907 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 14:49:29,907 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 14:49:29,911 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 14:49:29,911 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:49:28" (1/2) ... [2024-01-27 14:49:29,912 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@436dd457 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:29, skipping insertion in model container [2024-01-27 14:49:29,912 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:49:28" (1/2) ... [2024-01-27 14:49:29,913 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@a46d45b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:29, skipping insertion in model container [2024-01-27 14:49:29,913 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:49:29" (2/2) ... [2024-01-27 14:49:29,914 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@436dd457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:29, skipping insertion in model container [2024-01-27 14:49:29,914 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:49:29" (2/2) ... [2024-01-27 14:49:29,914 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 14:49:29,940 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 14:49:29,941 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L692] (unsigned long )arg == 0UL [2024-01-27 14:49:29,941 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L692] g == 1000 [2024-01-27 14:49:29,942 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] (unsigned long )arg == 0UL [2024-01-27 14:49:29,942 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-27 14:49:29,942 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] g == 1000 [2024-01-27 14:49:29,942 INFO L98 nessWitnessExtractor]: Location invariant before [L695-L695] (unsigned long )arg == 0UL [2024-01-27 14:49:29,942 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g == 1000 [2024-01-27 14:49:29,942 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g == 1000 [2024-01-27 14:49:29,942 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (unsigned long )arg == 0UL [2024-01-27 14:49:29,942 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] g == 1000 [2024-01-27 14:49:29,943 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (unsigned long )arg == 0UL [2024-01-27 14:49:29,943 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] 0 <= g [2024-01-27 14:49:29,943 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g == 0 || g == 999 [2024-01-27 14:49:29,943 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g % 999 == 0 [2024-01-27 14:49:29,943 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g <= 999 [2024-01-27 14:49:29,943 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g <= 32767 [2024-01-27 14:49:29,943 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-01-27 14:49:29,943 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] g == 0 [2024-01-27 14:49:29,943 INFO L98 nessWitnessExtractor]: Loop invariant at [L686-L696] (unsigned long )arg == 0UL [2024-01-27 14:49:29,944 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-01-27 14:49:29,944 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] g == 999 [2024-01-27 14:49:29,988 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 14:49:30,124 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_52-refine-protected-loop2-small_true.i[1105,1118] [2024-01-27 14:49:30,263 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:49:30,279 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 14:49:30,290 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_52-refine-protected-loop2-small_true.i[1105,1118] [2024-01-27 14:49:30,290 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 [2024-01-27 14:49:30,359 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:49:30,388 INFO L206 MainTranslator]: Completed translation [2024-01-27 14:49:30,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:30 WrapperNode [2024-01-27 14:49:30,388 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 14:49:30,389 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 14:49:30,390 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 14:49:30,390 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 14:49:30,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:30" (1/1) ... [2024-01-27 14:49:30,417 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:30" (1/1) ... [2024-01-27 14:49:30,442 INFO L138 Inliner]: procedures = 163, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 87 [2024-01-27 14:49:30,443 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 14:49:30,443 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 14:49:30,444 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 14:49:30,444 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 14:49:30,452 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:30" (1/1) ... [2024-01-27 14:49:30,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:30" (1/1) ... [2024-01-27 14:49:30,460 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:30" (1/1) ... [2024-01-27 14:49:30,481 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]. [2024-01-27 14:49:30,482 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:30" (1/1) ... [2024-01-27 14:49:30,482 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:30" (1/1) ... [2024-01-27 14:49:30,495 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:30" (1/1) ... [2024-01-27 14:49:30,502 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:30" (1/1) ... [2024-01-27 14:49:30,503 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:30" (1/1) ... [2024-01-27 14:49:30,506 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:30" (1/1) ... [2024-01-27 14:49:30,508 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 14:49:30,508 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 14:49:30,508 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 14:49:30,509 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 14:49:30,509 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:30" (1/1) ... [2024-01-27 14:49:30,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:49:30,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:49:30,530 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-27 14:49:30,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-27 14:49:30,561 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2024-01-27 14:49:30,562 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2024-01-27 14:49:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 14:49:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 14:49:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 14:49:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 14:49:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-27 14:49:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 14:49:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 14:49:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 14:49:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 14:49:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 14:49:30,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 14:49:30,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 14:49:30,563 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-27 14:49:30,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 14:49:30,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 14:49:30,564 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 14:49:30,675 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 14:49:30,677 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 14:49:30,897 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 14:49:30,897 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 14:49:30,974 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 14:49:30,976 INFO L320 CfgBuilder]: Removed 1 assume(true) statements. [2024-01-27 14:49:30,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:49:30 BoogieIcfgContainer [2024-01-27 14:49:30,976 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 14:49:30,979 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 14:49:30,979 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 14:49:30,981 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 14:49:30,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:49:28" (1/4) ... [2024-01-27 14:49:30,982 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce4a772 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:49:30, skipping insertion in model container [2024-01-27 14:49:30,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 02:49:29" (2/4) ... [2024-01-27 14:49:30,982 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce4a772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:49:30, skipping insertion in model container [2024-01-27 14:49:30,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:30" (3/4) ... [2024-01-27 14:49:30,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce4a772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:49:30, skipping insertion in model container [2024-01-27 14:49:30,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:49:30" (4/4) ... [2024-01-27 14:49:30,984 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_52-refine-protected-loop2-small_true.i [2024-01-27 14:49:30,996 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 14:49:30,996 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2024-01-27 14:49:30,997 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 14:49:31,060 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-27 14:49:31,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 62 transitions, 128 flow [2024-01-27 14:49:31,120 INFO L124 PetriNetUnfolderBase]: 3/61 cut-off events. [2024-01-27 14:49:31,120 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:49:31,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 61 events. 3/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2024-01-27 14:49:31,123 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 62 transitions, 128 flow [2024-01-27 14:49:31,126 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 60 transitions, 123 flow [2024-01-27 14:49:31,138 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 14:49:31,143 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;@4548e441, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 14:49:31,143 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-01-27 14:49:31,147 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 14:49:31,147 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 14:49:31,147 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:49:31,147 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:31,148 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 14:49:31,148 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-27 14:49:31,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:31,152 INFO L85 PathProgramCache]: Analyzing trace with hash 8050, now seen corresponding path program 1 times [2024-01-27 14:49:31,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:31,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446436024] [2024-01-27 14:49:31,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:31,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:31,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:49:31,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:31,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446436024] [2024-01-27 14:49:31,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446436024] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:31,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:31,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:49:31,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874066275] [2024-01-27 14:49:31,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:31,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:49:31,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:31,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:49:31,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:49:31,372 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 62 [2024-01-27 14:49:31,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 60 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:31,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:31,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 62 [2024-01-27 14:49:31,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:31,430 INFO L124 PetriNetUnfolderBase]: 21/140 cut-off events. [2024-01-27 14:49:31,431 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:49:31,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 140 events. 21/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 288 event pairs, 1 based on Foata normal form. 6/121 useless extension candidates. Maximal degree in co-relation 193. Up to 53 conditions per place. [2024-01-27 14:49:31,434 INFO L140 encePairwiseOnDemand]: 53/62 looper letters, 22 selfloop transitions, 2 changer transitions 0/61 dead transitions. [2024-01-27 14:49:31,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 61 transitions, 173 flow [2024-01-27 14:49:31,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:49:31,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:49:31,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 145 transitions. [2024-01-27 14:49:31,445 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7795698924731183 [2024-01-27 14:49:31,446 INFO L175 Difference]: Start difference. First operand has 61 places, 60 transitions, 123 flow. Second operand 3 states and 145 transitions. [2024-01-27 14:49:31,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 61 transitions, 173 flow [2024-01-27 14:49:31,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 61 transitions, 172 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 14:49:31,456 INFO L231 Difference]: Finished difference. Result has 62 places, 59 transitions, 138 flow [2024-01-27 14:49:31,457 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=62, PETRI_TRANSITIONS=59} [2024-01-27 14:49:31,461 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 1 predicate places. [2024-01-27 14:49:31,461 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 59 transitions, 138 flow [2024-01-27 14:49:31,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:31,462 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:31,462 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-27 14:49:31,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 14:49:31,463 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-27 14:49:31,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:31,464 INFO L85 PathProgramCache]: Analyzing trace with hash 240154341, now seen corresponding path program 1 times [2024-01-27 14:49:31,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:31,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860063535] [2024-01-27 14:49:31,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:31,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:31,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:31,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:49:31,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:31,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860063535] [2024-01-27 14:49:31,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860063535] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:31,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:31,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:49:31,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602563583] [2024-01-27 14:49:31,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:31,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:49:31,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:31,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:49:31,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:49:31,678 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 62 [2024-01-27 14:49:31,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 59 transitions, 138 flow. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:31,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:31,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 62 [2024-01-27 14:49:31,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:31,756 INFO L124 PetriNetUnfolderBase]: 13/121 cut-off events. [2024-01-27 14:49:31,756 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-27 14:49:31,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 121 events. 13/121 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 215 event pairs, 0 based on Foata normal form. 22/133 useless extension candidates. Maximal degree in co-relation 166. Up to 31 conditions per place. [2024-01-27 14:49:31,757 INFO L140 encePairwiseOnDemand]: 50/62 looper letters, 13 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2024-01-27 14:49:31,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 50 transitions, 150 flow [2024-01-27 14:49:31,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:49:31,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:49:31,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 172 transitions. [2024-01-27 14:49:31,759 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6935483870967742 [2024-01-27 14:49:31,759 INFO L175 Difference]: Start difference. First operand has 62 places, 59 transitions, 138 flow. Second operand 4 states and 172 transitions. [2024-01-27 14:49:31,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 50 transitions, 150 flow [2024-01-27 14:49:31,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 50 transitions, 148 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 14:49:31,760 INFO L231 Difference]: Finished difference. Result has 54 places, 49 transitions, 120 flow [2024-01-27 14:49:31,760 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=120, PETRI_PLACES=54, PETRI_TRANSITIONS=49} [2024-01-27 14:49:31,761 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -7 predicate places. [2024-01-27 14:49:31,761 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 120 flow [2024-01-27 14:49:31,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:31,762 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:31,762 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:49:31,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 14:49:31,762 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr9ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-27 14:49:31,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:31,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1940718065, now seen corresponding path program 1 times [2024-01-27 14:49:31,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:31,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507153452] [2024-01-27 14:49:31,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:31,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:31,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:49:31,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:31,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507153452] [2024-01-27 14:49:31,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507153452] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:31,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:31,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:49:31,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171636992] [2024-01-27 14:49:31,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:31,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:49:31,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:31,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:49:31,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:49:31,831 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 62 [2024-01-27 14:49:31,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 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) [2024-01-27 14:49:31,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:31,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 62 [2024-01-27 14:49:31,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:31,878 INFO L124 PetriNetUnfolderBase]: 22/117 cut-off events. [2024-01-27 14:49:31,879 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-27 14:49:31,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 117 events. 22/117 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 162 event pairs, 15 based on Foata normal form. 2/113 useless extension candidates. Maximal degree in co-relation 192. Up to 50 conditions per place. [2024-01-27 14:49:31,881 INFO L140 encePairwiseOnDemand]: 56/62 looper letters, 19 selfloop transitions, 3 changer transitions 0/46 dead transitions. [2024-01-27 14:49:31,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 46 transitions, 158 flow [2024-01-27 14:49:31,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:49:31,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:49:31,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 133 transitions. [2024-01-27 14:49:31,887 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7150537634408602 [2024-01-27 14:49:31,888 INFO L175 Difference]: Start difference. First operand has 54 places, 49 transitions, 120 flow. Second operand 3 states and 133 transitions. [2024-01-27 14:49:31,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 46 transitions, 158 flow [2024-01-27 14:49:31,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 46 transitions, 155 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:49:31,890 INFO L231 Difference]: Finished difference. Result has 51 places, 45 transitions, 115 flow [2024-01-27 14:49:31,890 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=115, PETRI_PLACES=51, PETRI_TRANSITIONS=45} [2024-01-27 14:49:31,891 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -10 predicate places. [2024-01-27 14:49:31,891 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 45 transitions, 115 flow [2024-01-27 14:49:31,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 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) [2024-01-27 14:49:31,892 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:31,893 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:49:31,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 14:49:31,894 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-27 14:49:31,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:31,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1014263892, now seen corresponding path program 1 times [2024-01-27 14:49:31,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:31,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296310595] [2024-01-27 14:49:31,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:31,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:32,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:49:32,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:32,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296310595] [2024-01-27 14:49:32,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296310595] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:32,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:32,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 14:49:32,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396764827] [2024-01-27 14:49:32,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:32,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:49:32,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:32,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:49:32,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:49:32,054 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 62 [2024-01-27 14:49:32,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 45 transitions, 115 flow. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:32,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:32,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 62 [2024-01-27 14:49:32,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:32,107 INFO L124 PetriNetUnfolderBase]: 21/108 cut-off events. [2024-01-27 14:49:32,107 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-01-27 14:49:32,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 108 events. 21/108 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 136 event pairs, 2 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 186. Up to 47 conditions per place. [2024-01-27 14:49:32,109 INFO L140 encePairwiseOnDemand]: 56/62 looper letters, 21 selfloop transitions, 5 changer transitions 0/46 dead transitions. [2024-01-27 14:49:32,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 46 transitions, 169 flow [2024-01-27 14:49:32,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:49:32,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:49:32,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 171 transitions. [2024-01-27 14:49:32,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6895161290322581 [2024-01-27 14:49:32,111 INFO L175 Difference]: Start difference. First operand has 51 places, 45 transitions, 115 flow. Second operand 4 states and 171 transitions. [2024-01-27 14:49:32,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 46 transitions, 169 flow [2024-01-27 14:49:32,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 46 transitions, 163 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:49:32,114 INFO L231 Difference]: Finished difference. Result has 50 places, 43 transitions, 115 flow [2024-01-27 14:49:32,114 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=115, PETRI_PLACES=50, PETRI_TRANSITIONS=43} [2024-01-27 14:49:32,115 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -11 predicate places. [2024-01-27 14:49:32,115 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 43 transitions, 115 flow [2024-01-27 14:49:32,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:32,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:32,116 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:49:32,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 14:49:32,116 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr15ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-27 14:49:32,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:32,117 INFO L85 PathProgramCache]: Analyzing trace with hash -213755017, now seen corresponding path program 1 times [2024-01-27 14:49:32,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:32,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150313210] [2024-01-27 14:49:32,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:32,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:32,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:32,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:49:32,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:32,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150313210] [2024-01-27 14:49:32,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150313210] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:32,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:32,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:49:32,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625371891] [2024-01-27 14:49:32,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:32,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:49:32,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:32,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:49:32,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:49:32,251 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 62 [2024-01-27 14:49:32,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 43 transitions, 115 flow. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:32,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:32,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 62 [2024-01-27 14:49:32,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:32,292 INFO L124 PetriNetUnfolderBase]: 20/99 cut-off events. [2024-01-27 14:49:32,292 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-01-27 14:49:32,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 99 events. 20/99 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 91 event pairs, 4 based on Foata normal form. 10/107 useless extension candidates. Maximal degree in co-relation 168. Up to 27 conditions per place. [2024-01-27 14:49:32,294 INFO L140 encePairwiseOnDemand]: 54/62 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2024-01-27 14:49:32,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 43 transitions, 155 flow [2024-01-27 14:49:32,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:49:32,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:49:32,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 159 transitions. [2024-01-27 14:49:32,295 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6411290322580645 [2024-01-27 14:49:32,296 INFO L175 Difference]: Start difference. First operand has 50 places, 43 transitions, 115 flow. Second operand 4 states and 159 transitions. [2024-01-27 14:49:32,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 43 transitions, 155 flow [2024-01-27 14:49:32,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 43 transitions, 145 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-27 14:49:32,297 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2024-01-27 14:49:32,297 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2024-01-27 14:49:32,299 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -17 predicate places. [2024-01-27 14:49:32,300 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2024-01-27 14:49:32,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:32,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 42 remaining) [2024-01-27 14:49:32,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 42 remaining) [2024-01-27 14:49:32,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 42 remaining) [2024-01-27 14:49:32,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 42 remaining) [2024-01-27 14:49:32,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 42 remaining) [2024-01-27 14:49:32,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 42 remaining) [2024-01-27 14:49:32,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 42 remaining) [2024-01-27 14:49:32,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr5ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 42 remaining) [2024-01-27 14:49:32,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr6ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 42 remaining) [2024-01-27 14:49:32,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr7ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 42 remaining) [2024-01-27 14:49:32,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr8ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 42 remaining) [2024-01-27 14:49:32,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr9ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 42 remaining) [2024-01-27 14:49:32,306 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr10ASSERT_VIOLATIONERROR_FUNCTION (29 of 42 remaining) [2024-01-27 14:49:32,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr11ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 42 remaining) [2024-01-27 14:49:32,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr12ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 42 remaining) [2024-01-27 14:49:32,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr13ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 42 remaining) [2024-01-27 14:49:32,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr15ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 42 remaining) [2024-01-27 14:49:32,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr14ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 42 remaining) [2024-01-27 14:49:32,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr16ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 42 remaining) [2024-01-27 14:49:32,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr17ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 42 remaining) [2024-01-27 14:49:32,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr18ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 42 remaining) [2024-01-27 14:49:32,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr19ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 42 remaining) [2024-01-27 14:49:32,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 42 remaining) [2024-01-27 14:49:32,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 42 remaining) [2024-01-27 14:49:32,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 42 remaining) [2024-01-27 14:49:32,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 42 remaining) [2024-01-27 14:49:32,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 42 remaining) [2024-01-27 14:49:32,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr5ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 42 remaining) [2024-01-27 14:49:32,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr6ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 42 remaining) [2024-01-27 14:49:32,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr7ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 42 remaining) [2024-01-27 14:49:32,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr8ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 42 remaining) [2024-01-27 14:49:32,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr9ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 42 remaining) [2024-01-27 14:49:32,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr10ASSERT_VIOLATIONERROR_FUNCTION (9 of 42 remaining) [2024-01-27 14:49:32,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr11ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 42 remaining) [2024-01-27 14:49:32,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr12ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 42 remaining) [2024-01-27 14:49:32,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr13ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 42 remaining) [2024-01-27 14:49:32,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr15ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 42 remaining) [2024-01-27 14:49:32,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr14ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 42 remaining) [2024-01-27 14:49:32,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr16ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 42 remaining) [2024-01-27 14:49:32,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr17ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 42 remaining) [2024-01-27 14:49:32,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr18ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 42 remaining) [2024-01-27 14:49:32,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr19ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 42 remaining) [2024-01-27 14:49:32,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 14:49:32,311 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-01-27 14:49:32,316 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 14:49:32,316 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 14:49:32,320 INFO L503 ceAbstractionStarter]: Automizer considered 20 witness invariants [2024-01-27 14:49:32,320 INFO L504 ceAbstractionStarter]: WitnessConsidered=20 [2024-01-27 14:49:32,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 02:49:32 BasicIcfg [2024-01-27 14:49:32,321 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 14:49:32,322 INFO L158 Benchmark]: Toolchain (without parser) took 2416.94ms. Allocated memory is still 148.9MB. Free memory was 118.7MB in the beginning and 70.6MB in the end (delta: 48.1MB). Peak memory consumption was 49.7MB. Max. memory is 16.1GB. [2024-01-27 14:49:32,325 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 104.9MB. Free memory was 65.9MB in the beginning and 65.7MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:49:32,325 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 148.9MB. Free memory is still 122.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:49:32,325 INFO L158 Benchmark]: CACSL2BoogieTranslator took 481.45ms. Allocated memory is still 148.9MB. Free memory was 118.7MB in the beginning and 95.1MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-27 14:49:32,326 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.72ms. Allocated memory is still 148.9MB. Free memory was 95.1MB in the beginning and 93.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:49:32,326 INFO L158 Benchmark]: Boogie Preprocessor took 64.53ms. Allocated memory is still 148.9MB. Free memory was 93.0MB in the beginning and 90.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:49:32,326 INFO L158 Benchmark]: RCFGBuilder took 468.06ms. Allocated memory is still 148.9MB. Free memory was 90.9MB in the beginning and 63.6MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-01-27 14:49:32,326 INFO L158 Benchmark]: TraceAbstraction took 1342.84ms. Allocated memory is still 148.9MB. Free memory was 62.6MB in the beginning and 70.6MB in the end (delta: -8.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:49:32,327 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 0.13ms. Allocated memory is still 104.9MB. Free memory was 65.9MB in the beginning and 65.7MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.08ms. Allocated memory is still 148.9MB. Free memory is still 122.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 481.45ms. Allocated memory is still 148.9MB. Free memory was 118.7MB in the beginning and 95.1MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.72ms. Allocated memory is still 148.9MB. Free memory was 95.1MB in the beginning and 93.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.53ms. Allocated memory is still 148.9MB. Free memory was 93.0MB in the beginning and 90.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 468.06ms. Allocated memory is still 148.9MB. Free memory was 90.9MB in the beginning and 63.6MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1342.84ms. Allocated memory is still 148.9MB. Free memory was 62.6MB in the beginning and 70.6MB in the end (delta: -8.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 702]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 686]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 694]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 695]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 686]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 115 locations, 42 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 277 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 155 mSDsluCounter, 75 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 329 IncrementalHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 55 mSDtfsCounter, 329 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=1, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 110 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 21 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-27 14:49:32,354 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 Result: TRUE