./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_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_40-traces-ex-6_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_40-traces-ex-6_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_40-traces-ex-6_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 14:49:20,594 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 14:49:20,664 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 14:49:20,668 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 14:49:20,669 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 14:49:20,685 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 14:49:20,686 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 14:49:20,686 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 14:49:20,687 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 14:49:20,687 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 14:49:20,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 14:49:20,688 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 14:49:20,688 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 14:49:20,689 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 14:49:20,689 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 14:49:20,689 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 14:49:20,690 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 14:49:20,693 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 14:49:20,694 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 14:49:20,694 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 14:49:20,694 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 14:49:20,695 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 14:49:20,695 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 14:49:20,695 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 14:49:20,696 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 14:49:20,696 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 14:49:20,696 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 14:49:20,696 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 14:49:20,697 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 14:49:20,697 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 14:49:20,697 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 14:49:20,697 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 14:49:20,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:49:20,698 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 14:49:20,698 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 14:49:20,699 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 14:49:20,699 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 14:49:20,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 14:49:20,699 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 14:49:20,700 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 14:49:20,700 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 14:49:20,700 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 14:49:20,700 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 14:49:20,701 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 14:49:20,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 14:49:21,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 14:49:21,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 14:49:21,012 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 14:49:21,013 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 14:49:21,014 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2024-01-27 14:49:22,218 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 14:49:22,628 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 14:49:22,629 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2024-01-27 14:49:22,643 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce95df933/aae78bc9ac884e6282fdb0757462885a/FLAG95b55c773 [2024-01-27 14:49:22,655 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce95df933/aae78bc9ac884e6282fdb0757462885a [2024-01-27 14:49:22,657 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 14:49:22,658 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 14:49:22,658 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_40-traces-ex-6_true.yml/witness.yml [2024-01-27 14:49:22,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 14:49:22,749 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 14:49:22,751 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 14:49:22,751 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 14:49:22,755 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 14:49:22,756 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:49:22" (1/2) ... [2024-01-27 14:49:22,757 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f038ff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:22, skipping insertion in model container [2024-01-27 14:49:22,757 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:49:22" (1/2) ... [2024-01-27 14:49:22,759 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@700b4de7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:22, skipping insertion in model container [2024-01-27 14:49:22,759 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:49:22" (2/2) ... [2024-01-27 14:49:22,760 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f038ff3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:22, skipping insertion in model container [2024-01-27 14:49:22,760 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:49:22" (2/2) ... [2024-01-27 14:49:22,760 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 14:49:22,793 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 14:49:22,795 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (unsigned long )arg == 0UL [2024-01-27 14:49:22,795 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] g == 2 [2024-01-27 14:49:22,795 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-27 14:49:22,796 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] g == 2 [2024-01-27 14:49:22,796 INFO L98 nessWitnessExtractor]: Location invariant before [L697-L697] g == 2 [2024-01-27 14:49:22,797 INFO L98 nessWitnessExtractor]: Location invariant before [L695-L695] g == 2 [2024-01-27 14:49:22,797 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] g == 1 [2024-01-27 14:49:22,797 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (unsigned long )arg == 0UL [2024-01-27 14:49:22,797 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g == 1 [2024-01-27 14:49:22,797 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-01-27 14:49:22,798 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (unsigned long )arg == 0UL [2024-01-27 14:49:22,798 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] g == 2 [2024-01-27 14:49:22,798 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-27 14:49:22,798 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] g == 2 [2024-01-27 14:49:22,798 INFO L98 nessWitnessExtractor]: Location invariant before [L685-L685] (unsigned long )arg == 0UL [2024-01-27 14:49:22,834 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 14:49:23,035 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_40-traces-ex-6_true.i[1088,1101] [2024-01-27 14:49:23,218 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:49:23,236 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 14:49:23,248 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_40-traces-ex-6_true.i[1088,1101] 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 14:49:23,308 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:49:23,338 INFO L206 MainTranslator]: Completed translation [2024-01-27 14:49:23,339 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:23 WrapperNode [2024-01-27 14:49:23,339 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 14:49:23,340 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 14:49:23,340 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 14:49:23,340 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 14:49:23,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:23" (1/1) ... [2024-01-27 14:49:23,365 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:23" (1/1) ... [2024-01-27 14:49:23,403 INFO L138 Inliner]: procedures = 163, calls = 31, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2024-01-27 14:49:23,403 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 14:49:23,404 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 14:49:23,405 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 14:49:23,405 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 14:49:23,414 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:23" (1/1) ... [2024-01-27 14:49:23,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:23" (1/1) ... [2024-01-27 14:49:23,419 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:23" (1/1) ... [2024-01-27 14:49:23,438 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 14:49:23,439 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:23" (1/1) ... [2024-01-27 14:49:23,439 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:23" (1/1) ... [2024-01-27 14:49:23,444 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:23" (1/1) ... [2024-01-27 14:49:23,445 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:23" (1/1) ... [2024-01-27 14:49:23,447 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:23" (1/1) ... [2024-01-27 14:49:23,448 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:23" (1/1) ... [2024-01-27 14:49:23,451 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 14:49:23,452 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 14:49:23,452 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 14:49:23,452 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 14:49:23,453 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:23" (1/1) ... [2024-01-27 14:49:23,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:49:23,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:49:23,490 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 14:49:23,507 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 14:49:23,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 14:49:23,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 14:49:23,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 14:49:23,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 14:49:23,542 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-27 14:49:23,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 14:49:23,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 14:49:23,542 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-27 14:49:23,543 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-27 14:49:23,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 14:49:23,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 14:49:23,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 14:49:23,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 14:49:23,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 14:49:23,544 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-27 14:49:23,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 14:49:23,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 14:49:23,545 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 14:49:23,673 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 14:49:23,678 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 14:49:23,874 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 14:49:23,874 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 14:49:23,991 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 14:49:23,991 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 14:49:23,992 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:49:23 BoogieIcfgContainer [2024-01-27 14:49:23,992 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 14:49:24,007 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 14:49:24,008 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 14:49:24,011 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 14:49:24,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 02:49:22" (1/4) ... [2024-01-27 14:49:24,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a3a8d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:49:24, skipping insertion in model container [2024-01-27 14:49:24,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:49:22" (2/4) ... [2024-01-27 14:49:24,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a3a8d1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:49:24, skipping insertion in model container [2024-01-27 14:49:24,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:23" (3/4) ... [2024-01-27 14:49:24,013 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a3a8d1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:49:24, skipping insertion in model container [2024-01-27 14:49:24,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:49:23" (4/4) ... [2024-01-27 14:49:24,014 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_40-traces-ex-6_true.i [2024-01-27 14:49:24,031 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 14:49:24,031 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-01-27 14:49:24,031 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 14:49:24,097 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-27 14:49:24,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 54 transitions, 112 flow [2024-01-27 14:49:24,169 INFO L124 PetriNetUnfolderBase]: 1/53 cut-off events. [2024-01-27 14:49:24,170 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:49:24,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 53 events. 1/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 67 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2024-01-27 14:49:24,175 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 54 transitions, 112 flow [2024-01-27 14:49:24,181 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 53 transitions, 109 flow [2024-01-27 14:49:24,201 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 14:49:24,211 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;@7d6dd93a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 14:49:24,211 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-01-27 14:49:24,218 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 14:49:24,219 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 14:49:24,219 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:49:24,219 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:24,220 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 14:49:24,221 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-27 14:49:24,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:24,226 INFO L85 PathProgramCache]: Analyzing trace with hash 7399, now seen corresponding path program 1 times [2024-01-27 14:49:24,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:24,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21116475] [2024-01-27 14:49:24,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:24,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:24,479 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 14:49:24,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:24,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21116475] [2024-01-27 14:49:24,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21116475] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:24,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:24,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:49:24,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020147444] [2024-01-27 14:49:24,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:24,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:49:24,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:24,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:49:24,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:49:24,567 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 54 [2024-01-27 14:49:24,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 53 transitions, 109 flow. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 14:49:24,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:24,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 54 [2024-01-27 14:49:24,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:24,694 INFO L124 PetriNetUnfolderBase]: 95/393 cut-off events. [2024-01-27 14:49:24,694 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:49:24,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 635 conditions, 393 events. 95/393 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2192 event pairs, 68 based on Foata normal form. 27/368 useless extension candidates. Maximal degree in co-relation 624. Up to 182 conditions per place. [2024-01-27 14:49:24,700 INFO L140 encePairwiseOnDemand]: 41/54 looper letters, 28 selfloop transitions, 5 changer transitions 0/57 dead transitions. [2024-01-27 14:49:24,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 57 transitions, 183 flow [2024-01-27 14:49:24,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:49:24,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:49:24,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 118 transitions. [2024-01-27 14:49:24,713 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7283950617283951 [2024-01-27 14:49:24,715 INFO L175 Difference]: Start difference. First operand has 56 places, 53 transitions, 109 flow. Second operand 3 states and 118 transitions. [2024-01-27 14:49:24,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 57 transitions, 183 flow [2024-01-27 14:49:24,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 57 transitions, 182 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 14:49:24,721 INFO L231 Difference]: Finished difference. Result has 55 places, 50 transitions, 132 flow [2024-01-27 14:49:24,723 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=55, PETRI_TRANSITIONS=50} [2024-01-27 14:49:24,726 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -1 predicate places. [2024-01-27 14:49:24,726 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 50 transitions, 132 flow [2024-01-27 14:49:24,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 14:49:24,727 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:24,727 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-27 14:49:24,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 14:49:24,727 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-27 14:49:24,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:24,728 INFO L85 PathProgramCache]: Analyzing trace with hash 220709500, now seen corresponding path program 1 times [2024-01-27 14:49:24,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:24,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250070308] [2024-01-27 14:49:24,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:24,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:24,915 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 14:49:24,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:24,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250070308] [2024-01-27 14:49:24,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250070308] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:24,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:24,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:49:24,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110076983] [2024-01-27 14:49:24,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:24,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:49:24,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:24,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:49:24,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:49:24,966 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 54 [2024-01-27 14:49:24,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 50 transitions, 132 flow. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 14:49:24,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:24,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 54 [2024-01-27 14:49:24,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:25,082 INFO L124 PetriNetUnfolderBase]: 58/284 cut-off events. [2024-01-27 14:49:25,083 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-01-27 14:49:25,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 284 events. 58/284 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1449 event pairs, 29 based on Foata normal form. 55/318 useless extension candidates. Maximal degree in co-relation 485. Up to 132 conditions per place. [2024-01-27 14:49:25,085 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 21 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2024-01-27 14:49:25,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 49 transitions, 176 flow [2024-01-27 14:49:25,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:49:25,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:49:25,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2024-01-27 14:49:25,088 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6759259259259259 [2024-01-27 14:49:25,088 INFO L175 Difference]: Start difference. First operand has 55 places, 50 transitions, 132 flow. Second operand 4 states and 146 transitions. [2024-01-27 14:49:25,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 49 transitions, 176 flow [2024-01-27 14:49:25,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 49 transitions, 166 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:49:25,090 INFO L231 Difference]: Finished difference. Result has 49 places, 43 transitions, 112 flow [2024-01-27 14:49:25,090 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=49, PETRI_TRANSITIONS=43} [2024-01-27 14:49:25,091 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -7 predicate places. [2024-01-27 14:49:25,091 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 43 transitions, 112 flow [2024-01-27 14:49:25,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 14:49:25,092 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:25,092 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:49:25,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 14:49:25,092 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-27 14:49:25,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:25,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1051219167, now seen corresponding path program 1 times [2024-01-27 14:49:25,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:25,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217579115] [2024-01-27 14:49:25,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:25,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:25,198 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 14:49:25,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:25,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217579115] [2024-01-27 14:49:25,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217579115] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:25,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:25,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:49:25,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799051280] [2024-01-27 14:49:25,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:25,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:49:25,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:25,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:49:25,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:49:25,221 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 54 [2024-01-27 14:49:25,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 43 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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 14:49:25,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:25,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 54 [2024-01-27 14:49:25,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:25,336 INFO L124 PetriNetUnfolderBase]: 119/388 cut-off events. [2024-01-27 14:49:25,336 INFO L125 PetriNetUnfolderBase]: For 54/59 co-relation queries the response was YES. [2024-01-27 14:49:25,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 758 conditions, 388 events. 119/388 cut-off events. For 54/59 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2001 event pairs, 64 based on Foata normal form. 2/370 useless extension candidates. Maximal degree in co-relation 744. Up to 173 conditions per place. [2024-01-27 14:49:25,342 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 36 selfloop transitions, 10 changer transitions 5/66 dead transitions. [2024-01-27 14:49:25,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 66 transitions, 266 flow [2024-01-27 14:49:25,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 14:49:25,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 14:49:25,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 168 transitions. [2024-01-27 14:49:25,349 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6222222222222222 [2024-01-27 14:49:25,349 INFO L175 Difference]: Start difference. First operand has 49 places, 43 transitions, 112 flow. Second operand 5 states and 168 transitions. [2024-01-27 14:49:25,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 66 transitions, 266 flow [2024-01-27 14:49:25,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 66 transitions, 263 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:49:25,353 INFO L231 Difference]: Finished difference. Result has 55 places, 47 transitions, 169 flow [2024-01-27 14:49:25,353 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=169, PETRI_PLACES=55, PETRI_TRANSITIONS=47} [2024-01-27 14:49:25,355 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -1 predicate places. [2024-01-27 14:49:25,355 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 47 transitions, 169 flow [2024-01-27 14:49:25,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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 14:49:25,355 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:25,356 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:49:25,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 14:49:25,356 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-27 14:49:25,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:25,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1131351772, now seen corresponding path program 1 times [2024-01-27 14:49:25,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:25,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848928329] [2024-01-27 14:49:25,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:25,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:25,413 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 14:49:25,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:25,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848928329] [2024-01-27 14:49:25,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848928329] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:25,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:25,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:49:25,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662725249] [2024-01-27 14:49:25,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:25,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:49:25,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:25,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:49:25,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:49:25,432 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 54 [2024-01-27 14:49:25,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 47 transitions, 169 flow. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 14:49:25,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:25,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 54 [2024-01-27 14:49:25,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:25,502 INFO L124 PetriNetUnfolderBase]: 85/295 cut-off events. [2024-01-27 14:49:25,503 INFO L125 PetriNetUnfolderBase]: For 190/198 co-relation queries the response was YES. [2024-01-27 14:49:25,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 687 conditions, 295 events. 85/295 cut-off events. For 190/198 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1365 event pairs, 67 based on Foata normal form. 25/312 useless extension candidates. Maximal degree in co-relation 669. Up to 159 conditions per place. [2024-01-27 14:49:25,505 INFO L140 encePairwiseOnDemand]: 48/54 looper letters, 23 selfloop transitions, 2 changer transitions 5/47 dead transitions. [2024-01-27 14:49:25,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 47 transitions, 215 flow [2024-01-27 14:49:25,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:49:25,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:49:25,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 119 transitions. [2024-01-27 14:49:25,507 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7345679012345679 [2024-01-27 14:49:25,507 INFO L175 Difference]: Start difference. First operand has 55 places, 47 transitions, 169 flow. Second operand 3 states and 119 transitions. [2024-01-27 14:49:25,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 47 transitions, 215 flow [2024-01-27 14:49:25,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 47 transitions, 215 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-27 14:49:25,512 INFO L231 Difference]: Finished difference. Result has 55 places, 38 transitions, 121 flow [2024-01-27 14:49:25,512 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=121, PETRI_PLACES=55, PETRI_TRANSITIONS=38} [2024-01-27 14:49:25,514 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -1 predicate places. [2024-01-27 14:49:25,515 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 38 transitions, 121 flow [2024-01-27 14:49:25,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 14:49:25,515 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:25,515 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 14:49:25,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 14:49:25,515 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-27 14:49:25,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:25,516 INFO L85 PathProgramCache]: Analyzing trace with hash -639204029, now seen corresponding path program 1 times [2024-01-27 14:49:25,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:25,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107635422] [2024-01-27 14:49:25,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:25,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:25,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:25,668 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 14:49:25,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:25,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107635422] [2024-01-27 14:49:25,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107635422] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:25,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:25,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 14:49:25,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112597930] [2024-01-27 14:49:25,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:25,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 14:49:25,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:25,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 14:49:25,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-27 14:49:25,671 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 54 [2024-01-27 14:49:25,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 38 transitions, 121 flow. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 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 14:49:25,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:25,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 54 [2024-01-27 14:49:25,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:25,707 INFO L124 PetriNetUnfolderBase]: 12/106 cut-off events. [2024-01-27 14:49:25,707 INFO L125 PetriNetUnfolderBase]: For 75/77 co-relation queries the response was YES. [2024-01-27 14:49:25,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 106 events. 12/106 cut-off events. For 75/77 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 257 event pairs, 5 based on Foata normal form. 7/109 useless extension candidates. Maximal degree in co-relation 200. Up to 32 conditions per place. [2024-01-27 14:49:25,708 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 10 selfloop transitions, 5 changer transitions 2/38 dead transitions. [2024-01-27 14:49:25,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 38 transitions, 151 flow [2024-01-27 14:49:25,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:49:25,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:49:25,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 167 transitions. [2024-01-27 14:49:25,710 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7731481481481481 [2024-01-27 14:49:25,710 INFO L175 Difference]: Start difference. First operand has 55 places, 38 transitions, 121 flow. Second operand 4 states and 167 transitions. [2024-01-27 14:49:25,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 38 transitions, 151 flow [2024-01-27 14:49:25,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 38 transitions, 123 flow, removed 5 selfloop flow, removed 8 redundant places. [2024-01-27 14:49:25,711 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 95 flow [2024-01-27 14:49:25,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=95, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2024-01-27 14:49:25,712 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -10 predicate places. [2024-01-27 14:49:25,713 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 95 flow [2024-01-27 14:49:25,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 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 14:49:25,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:25,713 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] [2024-01-27 14:49:25,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 14:49:25,713 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-01-27 14:49:25,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:25,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1009552455, now seen corresponding path program 1 times [2024-01-27 14:49:25,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:25,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034107201] [2024-01-27 14:49:25,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:25,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:25,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:25,837 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 14:49:25,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:25,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034107201] [2024-01-27 14:49:25,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034107201] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:25,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:25,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 14:49:25,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763909698] [2024-01-27 14:49:25,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:25,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 14:49:25,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:25,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 14:49:25,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-27 14:49:25,839 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 54 [2024-01-27 14:49:25,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 95 flow. Second operand has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 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 14:49:25,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:25,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 54 [2024-01-27 14:49:25,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:25,868 INFO L124 PetriNetUnfolderBase]: 10/71 cut-off events. [2024-01-27 14:49:25,868 INFO L125 PetriNetUnfolderBase]: For 13/14 co-relation queries the response was YES. [2024-01-27 14:49:25,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 71 events. 10/71 cut-off events. For 13/14 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 101 event pairs, 6 based on Foata normal form. 1/67 useless extension candidates. Maximal degree in co-relation 119. Up to 23 conditions per place. [2024-01-27 14:49:25,869 INFO L140 encePairwiseOnDemand]: 50/54 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2024-01-27 14:49:25,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 35 transitions, 125 flow [2024-01-27 14:49:25,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:49:25,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:49:25,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 166 transitions. [2024-01-27 14:49:25,870 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7685185185185185 [2024-01-27 14:49:25,870 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 95 flow. Second operand 4 states and 166 transitions. [2024-01-27 14:49:25,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 35 transitions, 125 flow [2024-01-27 14:49:25,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 35 transitions, 113 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-27 14:49:25,871 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2024-01-27 14:49:25,871 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2024-01-27 14:49:25,872 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -16 predicate places. [2024-01-27 14:49:25,872 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2024-01-27 14:49:25,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 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 14:49:25,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 29 remaining) [2024-01-27 14:49:25,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 29 remaining) [2024-01-27 14:49:25,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 29 remaining) [2024-01-27 14:49:25,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (25 of 29 remaining) [2024-01-27 14:49:25,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 29 remaining) [2024-01-27 14:49:25,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 29 remaining) [2024-01-27 14:49:25,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 29 remaining) [2024-01-27 14:49:25,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 29 remaining) [2024-01-27 14:49:25,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 29 remaining) [2024-01-27 14:49:25,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 29 remaining) [2024-01-27 14:49:25,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 29 remaining) [2024-01-27 14:49:25,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 29 remaining) [2024-01-27 14:49:25,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 29 remaining) [2024-01-27 14:49:25,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 29 remaining) [2024-01-27 14:49:25,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 29 remaining) [2024-01-27 14:49:25,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 29 remaining) [2024-01-27 14:49:25,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 29 remaining) [2024-01-27 14:49:25,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 29 remaining) [2024-01-27 14:49:25,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 29 remaining) [2024-01-27 14:49:25,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 29 remaining) [2024-01-27 14:49:25,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 29 remaining) [2024-01-27 14:49:25,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 29 remaining) [2024-01-27 14:49:25,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 29 remaining) [2024-01-27 14:49:25,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 29 remaining) [2024-01-27 14:49:25,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 29 remaining) [2024-01-27 14:49:25,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 29 remaining) [2024-01-27 14:49:25,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 29 remaining) [2024-01-27 14:49:25,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 29 remaining) [2024-01-27 14:49:25,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 29 remaining) [2024-01-27 14:49:25,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 14:49:25,880 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-01-27 14:49:25,885 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 14:49:25,885 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 14:49:25,889 INFO L503 ceAbstractionStarter]: Automizer considered 15 witness invariants [2024-01-27 14:49:25,889 INFO L504 ceAbstractionStarter]: WitnessConsidered=15 [2024-01-27 14:49:25,890 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 02:49:25 BasicIcfg [2024-01-27 14:49:25,890 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 14:49:25,890 INFO L158 Benchmark]: Toolchain (without parser) took 3141.00ms. Allocated memory was 146.8MB in the beginning and 188.7MB in the end (delta: 41.9MB). Free memory was 114.9MB in the beginning and 127.5MB in the end (delta: -12.6MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2024-01-27 14:49:25,890 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 146.8MB. Free memory is still 119.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:49:25,891 INFO L158 Benchmark]: Witness Parser took 0.07ms. Allocated memory is still 146.8MB. Free memory is still 117.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:49:25,891 INFO L158 Benchmark]: CACSL2BoogieTranslator took 588.90ms. Allocated memory is still 146.8MB. Free memory was 114.9MB in the beginning and 92.1MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-27 14:49:25,891 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.66ms. Allocated memory is still 146.8MB. Free memory was 92.1MB in the beginning and 90.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:49:25,891 INFO L158 Benchmark]: Boogie Preprocessor took 46.66ms. Allocated memory is still 146.8MB. Free memory was 90.2MB in the beginning and 88.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:49:25,892 INFO L158 Benchmark]: RCFGBuilder took 540.20ms. Allocated memory is still 146.8MB. Free memory was 88.1MB in the beginning and 114.7MB in the end (delta: -26.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-01-27 14:49:25,892 INFO L158 Benchmark]: TraceAbstraction took 1882.37ms. Allocated memory is still 188.7MB. Free memory was 157.7MB in the beginning and 127.5MB in the end (delta: 30.1MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2024-01-27 14:49:25,893 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 146.8MB. Free memory is still 119.3MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.07ms. Allocated memory is still 146.8MB. Free memory is still 117.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 588.90ms. Allocated memory is still 146.8MB. Free memory was 114.9MB in the beginning and 92.1MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.66ms. Allocated memory is still 146.8MB. Free memory was 92.1MB in the beginning and 90.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.66ms. Allocated memory is still 146.8MB. Free memory was 90.2MB in the beginning and 88.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 540.20ms. Allocated memory is still 146.8MB. Free memory was 88.1MB in the beginning and 114.7MB in the end (delta: -26.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1882.37ms. Allocated memory is still 188.7MB. Free memory was 157.7MB in the beginning and 127.5MB in the end (delta: 30.1MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 695]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 697]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 698]: 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: 685]: 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: 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: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 89 locations, 29 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 245 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 168 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 293 IncrementalHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 48 mSDtfsCounter, 293 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=169occurred in iteration=3, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 308 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-27 14:49:25,928 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