./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-bwb/parity1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 803cd42f 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/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-bwb/parity1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d8e1d49d2ffb51335819faf1bb7f66fcb90558744e80d2094b40dcf0713f4c13 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-23 02:04:27,306 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 02:04:27,386 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-23 02:04:27,399 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 02:04:27,400 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 02:04:27,430 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 02:04:27,432 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 02:04:27,432 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 02:04:27,433 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 02:04:27,434 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 02:04:27,435 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 02:04:27,436 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 02:04:27,436 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 02:04:27,436 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-23 02:04:27,438 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-23 02:04:27,438 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-23 02:04:27,439 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-23 02:04:27,442 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-23 02:04:27,442 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-23 02:04:27,442 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 02:04:27,443 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-23 02:04:27,443 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 02:04:27,443 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 02:04:27,444 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-23 02:04:27,444 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-23 02:04:27,445 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-23 02:04:27,445 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-23 02:04:27,445 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 02:04:27,445 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 02:04:27,446 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-23 02:04:27,446 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 02:04:27,446 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 02:04:27,446 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 02:04:27,447 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 02:04:27,447 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 02:04:27,448 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-23 02:04:27,448 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8e1d49d2ffb51335819faf1bb7f66fcb90558744e80d2094b40dcf0713f4c13 [2024-11-23 02:04:27,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 02:04:27,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 02:04:27,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 02:04:27,682 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 02:04:27,682 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 02:04:27,684 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-bwb/parity1.i [2024-11-23 02:04:29,111 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-23 02:04:29,281 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 02:04:29,282 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/parity1.i [2024-11-23 02:04:29,288 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d08a21692/7c18858d4e774125ade73dc35c98e208/FLAG88e36b56a [2024-11-23 02:04:29,299 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d08a21692/7c18858d4e774125ade73dc35c98e208 [2024-11-23 02:04:29,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 02:04:29,303 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 02:04:29,305 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 02:04:29,305 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 02:04:29,310 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 02:04:29,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:29" (1/1) ... [2024-11-23 02:04:29,311 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4de94c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:29, skipping insertion in model container [2024-11-23 02:04:29,311 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:29" (1/1) ... [2024-11-23 02:04:29,328 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 02:04:29,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 02:04:29,497 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 02:04:29,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 02:04:29,521 INFO L204 MainTranslator]: Completed translation [2024-11-23 02:04:29,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:29 WrapperNode [2024-11-23 02:04:29,521 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 02:04:29,522 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 02:04:29,522 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 02:04:29,523 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 02:04:29,528 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:29" (1/1) ... [2024-11-23 02:04:29,533 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:29" (1/1) ... [2024-11-23 02:04:29,552 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2024-11-23 02:04:29,552 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 02:04:29,553 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 02:04:29,553 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 02:04:29,553 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 02:04:29,562 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:29" (1/1) ... [2024-11-23 02:04:29,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:29" (1/1) ... [2024-11-23 02:04:29,563 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:29" (1/1) ... [2024-11-23 02:04:29,569 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-23 02:04:29,569 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:29" (1/1) ... [2024-11-23 02:04:29,569 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:29" (1/1) ... [2024-11-23 02:04:29,571 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:29" (1/1) ... [2024-11-23 02:04:29,574 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:29" (1/1) ... [2024-11-23 02:04:29,574 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:29" (1/1) ... [2024-11-23 02:04:29,575 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:29" (1/1) ... [2024-11-23 02:04:29,576 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 02:04:29,577 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 02:04:29,577 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 02:04:29,578 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 02:04:29,578 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:29" (1/1) ... [2024-11-23 02:04:29,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:29,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:29,612 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:29,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-23 02:04:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 02:04:29,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 02:04:29,719 INFO L238 CfgBuilder]: Building ICFG [2024-11-23 02:04:29,721 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 02:04:29,822 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-23 02:04:29,822 INFO L287 CfgBuilder]: Performing block encoding [2024-11-23 02:04:29,832 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 02:04:29,834 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-23 02:04:29,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:29 BoogieIcfgContainer [2024-11-23 02:04:29,834 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 02:04:29,836 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-23 02:04:29,836 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-23 02:04:29,844 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-23 02:04:29,845 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 02:04:29,847 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 02:04:29" (1/3) ... [2024-11-23 02:04:29,848 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f1dbd74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:04:29, skipping insertion in model container [2024-11-23 02:04:29,848 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 02:04:29,849 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:29" (2/3) ... [2024-11-23 02:04:29,849 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f1dbd74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:04:29, skipping insertion in model container [2024-11-23 02:04:29,849 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 02:04:29,849 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:29" (3/3) ... [2024-11-23 02:04:29,851 INFO L332 chiAutomizerObserver]: Analyzing ICFG parity1.i [2024-11-23 02:04:29,907 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-23 02:04:29,907 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-23 02:04:29,907 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-23 02:04:29,907 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-23 02:04:29,908 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-23 02:04:29,908 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-23 02:04:29,908 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-23 02:04:29,908 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-23 02:04:29,912 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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) [2024-11-23 02:04:29,930 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-23 02:04:29,930 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:04:29,931 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:04:29,935 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-23 02:04:29,935 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-23 02:04:29,935 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-23 02:04:29,936 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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) [2024-11-23 02:04:29,936 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-23 02:04:29,937 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:04:29,937 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:04:29,937 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-23 02:04:29,937 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-23 02:04:29,945 INFO L745 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~y~0 := 0;~parity~0 := 0; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_~z~0#1.base, main_~z~0#1.offset;havoc main_~z~0#1.base, main_~z~0#1.offset;main_~z~0#1.base, main_~z~0#1.offset := 0, 0;~parity~0 := 0;havoc main_#t~nondet0#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 5#L13true assume !(~v~0 < 0); 9#L14-1true [2024-11-23 02:04:29,945 INFO L747 eck$LassoCheckResult]: Loop: 9#L14-1true assume !!(~v~0 > 0);main_#t~post2#1 := ~parity~0;~parity~0 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 3#L17true assume 0 == ~v~0 || 0 == ~v~0 - 1;main_#t~bitwise3#1 := 0; 11#L17-5true ~v~0 := main_#t~bitwise3#1;havoc main_#t~bitwise3#1; 9#L14-1true [2024-11-23 02:04:29,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:29,955 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2024-11-23 02:04:29,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:29,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667485411] [2024-11-23 02:04:29,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:04:29,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:30,034 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:04:30,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:30,059 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:04:30,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:30,063 INFO L85 PathProgramCache]: Analyzing trace with hash 45785, now seen corresponding path program 1 times [2024-11-23 02:04:30,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:30,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000172570] [2024-11-23 02:04:30,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:04:30,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:30,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:30,083 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:04:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:30,092 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:04:30,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:30,094 INFO L85 PathProgramCache]: Analyzing trace with hash 889575254, now seen corresponding path program 1 times [2024-11-23 02:04:30,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:30,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290227041] [2024-11-23 02:04:30,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:04:30,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:30,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:30,109 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:04:30,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:30,117 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:04:30,207 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:04:30,208 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:04:30,208 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:04:30,208 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:04:30,208 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 02:04:30,208 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:30,208 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:04:30,208 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:04:30,208 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration1_Loop [2024-11-23 02:04:30,209 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:04:30,209 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:04:30,223 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:30,236 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:30,246 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:30,251 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:30,321 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:04:30,321 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 02:04:30,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:30,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:30,326 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:30,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-23 02:04:30,330 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:04:30,330 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:30,358 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:30,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:30,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:30,361 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:30,379 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 02:04:30,379 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:30,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-23 02:04:30,408 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 02:04:30,408 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~parity~0=0} Honda state: {~parity~0=0} Generalized eigenvectors: [{~parity~0=-4}, {~parity~0=-1}, {~parity~0=6}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-11-23 02:04:30,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:30,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:30,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:30,417 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:30,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-23 02:04:30,419 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:04:30,419 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:30,437 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-23 02:04:30,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:30,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:30,439 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:30,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-23 02:04:30,441 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 02:04:30,442 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:30,456 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 02:04:30,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:30,466 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:04:30,466 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:04:30,466 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:04:30,466 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:04:30,466 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 02:04:30,466 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:30,466 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:04:30,466 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:04:30,466 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration1_Loop [2024-11-23 02:04:30,467 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:04:30,467 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:04:30,468 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:30,474 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:30,482 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:30,486 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:30,533 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:04:30,538 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 02:04:30,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:30,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:30,542 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:30,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-23 02:04:30,546 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:04:30,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:04:30,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:04:30,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:04:30,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:04:30,559 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:04:30,560 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:04:30,560 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:04:30,566 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 02:04:30,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-23 02:04:30,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:30,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:30,580 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:30,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-23 02:04:30,584 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:04:30,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:04:30,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:04:30,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:04:30,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:04:30,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:04:30,599 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:04:30,600 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:04:30,605 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 02:04:30,608 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-23 02:04:30,608 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-23 02:04:30,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:30,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:30,642 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:30,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-23 02:04:30,644 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 02:04:30,645 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 02:04:30,645 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 02:04:30,645 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2024-11-23 02:04:30,652 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-23 02:04:30,655 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 02:04:30,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:30,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 02:04:30,694 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:04:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:30,708 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 02:04:30,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:04:30,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:04:30,774 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-23 02:04:30,777 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-11-23 02:04:30,877 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) Result 55 states and 76 transitions. Complement of second has 11 states. [2024-11-23 02:04:30,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2024-11-23 02:04:30,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-11-23 02:04:30,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 51 transitions. [2024-11-23 02:04:30,886 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 51 transitions. Stem has 3 letters. Loop has 3 letters. [2024-11-23 02:04:30,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:30,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 51 transitions. Stem has 6 letters. Loop has 3 letters. [2024-11-23 02:04:30,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:30,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 51 transitions. Stem has 3 letters. Loop has 6 letters. [2024-11-23 02:04:30,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:30,888 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 76 transitions. [2024-11-23 02:04:30,891 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2024-11-23 02:04:30,893 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 29 states and 35 transitions. [2024-11-23 02:04:30,894 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2024-11-23 02:04:30,894 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-11-23 02:04:30,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 35 transitions. [2024-11-23 02:04:30,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:04:30,895 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 35 transitions. [2024-11-23 02:04:30,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 35 transitions. [2024-11-23 02:04:30,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 21. [2024-11-23 02:04:30,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 20 states have internal predecessors, (26), 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) [2024-11-23 02:04:30,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2024-11-23 02:04:30,915 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 26 transitions. [2024-11-23 02:04:30,915 INFO L425 stractBuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2024-11-23 02:04:30,915 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-23 02:04:30,915 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 26 transitions. [2024-11-23 02:04:30,916 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2024-11-23 02:04:30,916 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:04:30,916 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:04:30,916 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-23 02:04:30,917 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-23 02:04:30,917 INFO L745 eck$LassoCheckResult]: Stem: 130#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~y~0 := 0;~parity~0 := 0; 131#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_~z~0#1.base, main_~z~0#1.offset;havoc main_~z~0#1.base, main_~z~0#1.offset;main_~z~0#1.base, main_~z~0#1.offset := 0, 0;~parity~0 := 0;havoc main_#t~nondet0#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 127#L13 assume ~v~0 < 0;~v~0 := -1 * ~v~0; 128#L14-1 [2024-11-23 02:04:30,917 INFO L747 eck$LassoCheckResult]: Loop: 128#L14-1 assume !!(~v~0 > 0);main_#t~post2#1 := ~parity~0;~parity~0 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 138#L17 assume 0 == ~v~0 || 0 == ~v~0 - 1;main_#t~bitwise3#1 := 0; 134#L17-5 ~v~0 := main_#t~bitwise3#1;havoc main_#t~bitwise3#1; 128#L14-1 [2024-11-23 02:04:30,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:30,918 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-11-23 02:04:30,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:30,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443392237] [2024-11-23 02:04:30,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:04:30,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:30,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:30,924 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:04:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:30,928 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:04:30,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:30,929 INFO L85 PathProgramCache]: Analyzing trace with hash 45785, now seen corresponding path program 2 times [2024-11-23 02:04:30,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:30,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142888630] [2024-11-23 02:04:30,929 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:04:30,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:30,938 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 02:04:30,938 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-23 02:04:30,938 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:04:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:30,943 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:04:30,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:30,944 INFO L85 PathProgramCache]: Analyzing trace with hash 889515672, now seen corresponding path program 1 times [2024-11-23 02:04:30,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:30,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613964315] [2024-11-23 02:04:30,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:04:30,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:30,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:30,959 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:04:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:30,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:04:31,010 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:04:31,010 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:04:31,010 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:04:31,011 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:04:31,011 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 02:04:31,011 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:31,011 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:04:31,011 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:04:31,011 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration2_Loop [2024-11-23 02:04:31,011 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:04:31,011 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:04:31,012 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:31,017 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:31,021 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:31,028 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:31,065 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:04:31,066 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 02:04:31,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:31,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:31,069 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:31,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-23 02:04:31,072 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:04:31,072 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:31,087 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 02:04:31,088 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise3#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 02:04:31,094 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-23 02:04:31,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:31,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:31,095 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:31,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-23 02:04:31,100 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:04:31,100 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:31,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:31,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:31,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:31,119 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:31,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-23 02:04:31,121 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 02:04:31,121 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:31,150 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 02:04:31,150 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~parity~0=0} Honda state: {~parity~0=0} Generalized eigenvectors: [{~parity~0=-4}, {~parity~0=-1}, {~parity~0=6}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-11-23 02:04:31,157 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:31,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:31,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:31,175 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:31,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-23 02:04:31,177 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:04:31,177 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:31,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:31,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:31,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:31,196 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:31,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-23 02:04:31,198 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 02:04:31,198 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:31,211 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 02:04:31,220 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-23 02:04:31,220 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:04:31,221 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:04:31,221 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:04:31,221 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:04:31,221 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 02:04:31,221 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:31,221 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:04:31,221 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:04:31,221 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration2_Loop [2024-11-23 02:04:31,221 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:04:31,221 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:04:31,224 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:31,231 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:31,241 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:31,245 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:31,277 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:04:31,278 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 02:04:31,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:31,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:31,280 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:31,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-23 02:04:31,282 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:04:31,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:04:31,292 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:04:31,293 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:04:31,293 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:04:31,293 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:04:31,293 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:04:31,293 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:04:31,296 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 02:04:31,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:31,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:31,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:31,307 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:31,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-23 02:04:31,309 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:04:31,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:04:31,321 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:04:31,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:04:31,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:04:31,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:04:31,323 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:04:31,323 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:04:31,325 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 02:04:31,328 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-23 02:04:31,328 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-23 02:04:31,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:31,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:31,333 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:31,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-23 02:04:31,335 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 02:04:31,336 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 02:04:31,336 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 02:04:31,336 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2024-11-23 02:04:31,344 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-23 02:04:31,345 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 02:04:31,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:31,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:31,371 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 02:04:31,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:04:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:31,381 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 02:04:31,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:04:31,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:04:31,408 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-23 02:04:31,408 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-11-23 02:04:31,476 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) Result 38 states and 47 transitions. Complement of second has 8 states. [2024-11-23 02:04:31,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-23 02:04:31,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-11-23 02:04:31,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2024-11-23 02:04:31,479 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 3 letters. Loop has 3 letters. [2024-11-23 02:04:31,479 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:31,479 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 6 letters. Loop has 3 letters. [2024-11-23 02:04:31,479 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:31,479 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 3 letters. Loop has 6 letters. [2024-11-23 02:04:31,479 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:31,479 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 47 transitions. [2024-11-23 02:04:31,480 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2024-11-23 02:04:31,481 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 37 states and 45 transitions. [2024-11-23 02:04:31,484 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2024-11-23 02:04:31,484 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-11-23 02:04:31,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 45 transitions. [2024-11-23 02:04:31,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:04:31,484 INFO L218 hiAutomatonCegarLoop]: Abstraction has 37 states and 45 transitions. [2024-11-23 02:04:31,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 45 transitions. [2024-11-23 02:04:31,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 16. [2024-11-23 02:04:31,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.25) internal successors, (20), 15 states have internal predecessors, (20), 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) [2024-11-23 02:04:31,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2024-11-23 02:04:31,486 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 20 transitions. [2024-11-23 02:04:31,486 INFO L425 stractBuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2024-11-23 02:04:31,486 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-23 02:04:31,486 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2024-11-23 02:04:31,487 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-23 02:04:31,487 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:04:31,487 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:04:31,487 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-23 02:04:31,489 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-23 02:04:31,489 INFO L745 eck$LassoCheckResult]: Stem: 234#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~y~0 := 0;~parity~0 := 0; 235#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_~z~0#1.base, main_~z~0#1.offset;havoc main_~z~0#1.base, main_~z~0#1.offset;main_~z~0#1.base, main_~z~0#1.offset := 0, 0;~parity~0 := 0;havoc main_#t~nondet0#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 232#L13 assume !(~v~0 < 0); 233#L14-1 assume !!(~v~0 > 0);main_#t~post2#1 := ~parity~0;~parity~0 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 229#L17 [2024-11-23 02:04:31,489 INFO L747 eck$LassoCheckResult]: Loop: 229#L17 assume !(0 == ~v~0 || 0 == ~v~0 - 1); 225#L17-2 assume !(~v~0 == ~v~0 - 1); 226#L17-4 havoc main_#t~bitwise3#1;assume (((((~v~0 < 0 && ~v~0 - 1 >= 0) || main_#t~bitwise3#1 <= ~v~0) && ((~v~0 >= 0 && ~v~0 - 1 < 0) || main_#t~bitwise3#1 <= ~v~0 - 1)) && ((~v~0 < 0 && ~v~0 - 1 < 0) || main_#t~bitwise3#1 >= 0)) && ((~v~0 >= 0 && ~v~0 - 1 >= 0) || main_#t~bitwise3#1 > ~v~0 + (~v~0 - 1))) && main_#t~bitwise3#1 >= -2147483648; 238#L17-5 ~v~0 := main_#t~bitwise3#1;havoc main_#t~bitwise3#1; 236#L14-1 assume !!(~v~0 > 0);main_#t~post2#1 := ~parity~0;~parity~0 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 229#L17 [2024-11-23 02:04:31,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:31,490 INFO L85 PathProgramCache]: Analyzing trace with hash 925676, now seen corresponding path program 1 times [2024-11-23 02:04:31,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:31,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475090877] [2024-11-23 02:04:31,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:04:31,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:31,501 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:04:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:31,509 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:04:31,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:31,510 INFO L85 PathProgramCache]: Analyzing trace with hash 48824520, now seen corresponding path program 1 times [2024-11-23 02:04:31,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:31,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776028797] [2024-11-23 02:04:31,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:04:31,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:31,523 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:04:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:31,534 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:04:31,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:31,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1389960125, now seen corresponding path program 1 times [2024-11-23 02:04:31,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:04:31,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016140537] [2024-11-23 02:04:31,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:04:31,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:04:31,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:31,555 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:04:31,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:04:31,570 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:04:31,628 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:04:31,629 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:04:31,629 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:04:31,629 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:04:31,629 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 02:04:31,629 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:31,629 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:04:31,629 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:04:31,629 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration3_Loop [2024-11-23 02:04:31,629 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:04:31,629 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:04:31,630 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:31,633 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:31,636 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:31,641 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:31,667 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:04:31,667 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 02:04:31,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:31,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:31,669 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:31,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-23 02:04:31,672 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:04:31,672 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:31,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-23 02:04:31,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:31,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:31,699 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:31,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-23 02:04:31,702 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 02:04:31,703 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:31,735 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 02:04:31,735 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~parity~0=0} Honda state: {~parity~0=0} Generalized eigenvectors: [{~parity~0=-4}, {~parity~0=-1}, {~parity~0=6}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-11-23 02:04:31,744 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-23 02:04:31,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:31,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:31,746 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:31,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-23 02:04:31,750 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:04:31,750 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:31,765 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 02:04:31,766 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2#1=0} Honda state: {ULTIMATE.start_main_#t~post2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 02:04:31,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-23 02:04:31,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:31,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:31,776 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:31,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-23 02:04:31,779 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:04:31,779 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:31,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:31,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:31,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:31,804 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:31,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-23 02:04:31,806 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 02:04:31,806 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:04:31,852 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 02:04:31,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-23 02:04:31,859 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:04:31,859 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:04:31,859 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:04:31,859 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:04:31,859 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 02:04:31,859 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:31,859 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:04:31,859 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:04:31,859 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity1.i_Iteration3_Loop [2024-11-23 02:04:31,859 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:04:31,859 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:04:31,860 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:31,864 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:31,866 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:31,871 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:04:31,897 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:04:31,897 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 02:04:31,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:31,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:31,899 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:31,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-23 02:04:31,902 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:04:31,913 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:04:31,913 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:04:31,913 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:04:31,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:04:31,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:04:31,915 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:04:31,915 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:04:31,917 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 02:04:31,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:31,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:31,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:31,927 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:31,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-23 02:04:31,929 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:04:31,942 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:04:31,942 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:04:31,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:04:31,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:04:31,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:04:31,943 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:04:31,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:04:31,945 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 02:04:31,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-23 02:04:31,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:31,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:31,954 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:31,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-23 02:04:31,956 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:04:31,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:04:31,966 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:04:31,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:04:31,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:04:31,966 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:04:31,967 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:04:31,967 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:04:31,969 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 02:04:31,970 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-23 02:04:31,970 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-23 02:04:31,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:04:31,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:04:31,972 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:04:31,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-23 02:04:31,973 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 02:04:31,973 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 02:04:31,974 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 02:04:31,974 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2024-11-23 02:04:31,979 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-23 02:04:31,980 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 02:04:31,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:04:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:32,004 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 02:04:32,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:04:32,038 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-23 02:04:32,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:04:32,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 02:04:32,043 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:04:32,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-23 02:04:32,065 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-23 02:04:32,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:04:32,220 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-23 02:04:32,221 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 6 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2024-11-23 02:04:32,268 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 6. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) Result 27 states and 32 transitions. Complement of second has 8 states. [2024-11-23 02:04:32,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-23 02:04:32,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2024-11-23 02:04:32,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2024-11-23 02:04:32,270 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 4 letters. Loop has 5 letters. [2024-11-23 02:04:32,271 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:32,271 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 9 letters. Loop has 5 letters. [2024-11-23 02:04:32,271 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:32,271 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 4 letters. Loop has 10 letters. [2024-11-23 02:04:32,271 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:04:32,271 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 32 transitions. [2024-11-23 02:04:32,272 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-23 02:04:32,273 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 0 states and 0 transitions. [2024-11-23 02:04:32,273 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-23 02:04:32,273 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-23 02:04:32,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-23 02:04:32,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-23 02:04:32,273 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 02:04:32,273 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 02:04:32,273 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 02:04:32,274 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-23 02:04:32,274 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-23 02:04:32,274 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-23 02:04:32,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-23 02:04:32,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 02:04:32 BoogieIcfgContainer [2024-11-23 02:04:32,282 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-23 02:04:32,283 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 02:04:32,283 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 02:04:32,283 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 02:04:32,284 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:29" (3/4) ... [2024-11-23 02:04:32,286 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-23 02:04:32,287 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 02:04:32,288 INFO L158 Benchmark]: Toolchain (without parser) took 2985.01ms. Allocated memory was 148.9MB in the beginning and 195.0MB in the end (delta: 46.1MB). Free memory was 93.7MB in the beginning and 148.9MB in the end (delta: -55.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 02:04:32,288 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 148.9MB. Free memory is still 112.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 02:04:32,289 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.59ms. Allocated memory is still 148.9MB. Free memory was 93.2MB in the beginning and 82.1MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-23 02:04:32,289 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.03ms. Allocated memory is still 148.9MB. Free memory was 82.1MB in the beginning and 80.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 02:04:32,289 INFO L158 Benchmark]: Boogie Preprocessor took 23.55ms. Allocated memory is still 148.9MB. Free memory was 80.6MB in the beginning and 79.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 02:04:32,290 INFO L158 Benchmark]: RCFGBuilder took 257.44ms. Allocated memory is still 148.9MB. Free memory was 79.0MB in the beginning and 69.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 02:04:32,290 INFO L158 Benchmark]: BuchiAutomizer took 2446.25ms. Allocated memory was 148.9MB in the beginning and 195.0MB in the end (delta: 46.1MB). Free memory was 69.1MB in the beginning and 149.9MB in the end (delta: -80.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 02:04:32,291 INFO L158 Benchmark]: Witness Printer took 4.23ms. Allocated memory is still 195.0MB. Free memory was 149.9MB in the beginning and 148.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 02:04:32,293 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 148.9MB. Free memory is still 112.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.59ms. Allocated memory is still 148.9MB. Free memory was 93.2MB in the beginning and 82.1MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.03ms. Allocated memory is still 148.9MB. Free memory was 82.1MB in the beginning and 80.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.55ms. Allocated memory is still 148.9MB. Free memory was 80.6MB in the beginning and 79.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 257.44ms. Allocated memory is still 148.9MB. Free memory was 79.0MB in the beginning and 69.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2446.25ms. Allocated memory was 148.9MB in the beginning and 195.0MB in the end (delta: 46.1MB). Free memory was 69.1MB in the beginning and 149.9MB in the end (delta: -80.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.23ms. Allocated memory is still 195.0MB. Free memory was 149.9MB in the beginning and 148.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function v and consists of 7 locations. One deterministic module has affine ranking function v and consists of 5 locations. One deterministic module has affine ranking function v and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 29 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 55 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 38 mSDtfsCounter, 55 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp63 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq173 hnf91 smp100 dnf100 smp100 tf115 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-23 02:04:32,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (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