./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-bwb/and-06.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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/and-06.c -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 d5d25da990643b4b5025c4e511382360ecc906ce1073cabf600162c7aef9f4cd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 08:00:25,315 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 08:00:25,373 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-17 08:00:25,390 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 08:00:25,390 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 08:00:25,391 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-17 08:00:25,424 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 08:00:25,425 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 08:00:25,425 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 08:00:25,426 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 08:00:25,427 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 08:00:25,427 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 08:00:25,428 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 08:00:25,430 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 08:00:25,430 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-17 08:00:25,431 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-17 08:00:25,431 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-17 08:00:25,431 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-17 08:00:25,431 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-17 08:00:25,431 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-17 08:00:25,431 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 08:00:25,432 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-17 08:00:25,432 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 08:00:25,432 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 08:00:25,432 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-17 08:00:25,432 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-17 08:00:25,433 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-17 08:00:25,433 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 08:00:25,433 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 08:00:25,433 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 08:00:25,433 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-17 08:00:25,433 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 08:00:25,433 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 08:00:25,434 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 08:00:25,434 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 08:00:25,434 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 08:00:25,434 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-17 08:00:25,434 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5d25da990643b4b5025c4e511382360ecc906ce1073cabf600162c7aef9f4cd [2024-11-17 08:00:25,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 08:00:25,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 08:00:25,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 08:00:25,680 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 08:00:25,680 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 08:00:25,681 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-bwb/and-06.c [2024-11-17 08:00:27,008 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 08:00:27,142 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 08:00:27,142 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-06.c [2024-11-17 08:00:27,147 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9558428bb/8824531df35f40e1b8e70514d0d5ebd2/FLAG7230f3e9c [2024-11-17 08:00:27,156 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9558428bb/8824531df35f40e1b8e70514d0d5ebd2 [2024-11-17 08:00:27,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 08:00:27,159 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 08:00:27,162 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 08:00:27,162 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 08:00:27,166 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 08:00:27,166 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:00:27" (1/1) ... [2024-11-17 08:00:27,167 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75f32e25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:27, skipping insertion in model container [2024-11-17 08:00:27,168 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:00:27" (1/1) ... [2024-11-17 08:00:27,180 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 08:00:27,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:00:27,304 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 08:00:27,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:00:27,323 INFO L204 MainTranslator]: Completed translation [2024-11-17 08:00:27,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:27 WrapperNode [2024-11-17 08:00:27,324 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 08:00:27,324 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 08:00:27,324 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 08:00:27,325 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 08:00:27,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:27" (1/1) ... [2024-11-17 08:00:27,332 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:27" (1/1) ... [2024-11-17 08:00:27,350 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2024-11-17 08:00:27,351 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 08:00:27,351 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 08:00:27,351 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 08:00:27,352 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 08:00:27,358 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:27" (1/1) ... [2024-11-17 08:00:27,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:27" (1/1) ... [2024-11-17 08:00:27,359 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:27" (1/1) ... [2024-11-17 08:00:27,363 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-17 08:00:27,363 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:27" (1/1) ... [2024-11-17 08:00:27,367 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:27" (1/1) ... [2024-11-17 08:00:27,369 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:27" (1/1) ... [2024-11-17 08:00:27,370 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:27" (1/1) ... [2024-11-17 08:00:27,371 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:27" (1/1) ... [2024-11-17 08:00:27,371 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:27" (1/1) ... [2024-11-17 08:00:27,372 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 08:00:27,373 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 08:00:27,373 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 08:00:27,373 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 08:00:27,374 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:27" (1/1) ... [2024-11-17 08:00:27,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:27,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:27,422 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) [2024-11-17 08:00:27,429 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 [2024-11-17 08:00:27,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 08:00:27,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 08:00:27,516 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 08:00:27,517 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 08:00:27,623 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-17 08:00:27,626 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 08:00:27,652 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 08:00:27,652 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 08:00:27,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:00:27 BoogieIcfgContainer [2024-11-17 08:00:27,653 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 08:00:27,653 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-17 08:00:27,654 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-17 08:00:27,657 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-17 08:00:27,657 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:00:27,658 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.11 08:00:27" (1/3) ... [2024-11-17 08:00:27,659 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18775b2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:00:27, skipping insertion in model container [2024-11-17 08:00:27,659 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:00:27,659 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:00:27" (2/3) ... [2024-11-17 08:00:27,659 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18775b2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:00:27, skipping insertion in model container [2024-11-17 08:00:27,660 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:00:27,660 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:00:27" (3/3) ... [2024-11-17 08:00:27,661 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-06.c [2024-11-17 08:00:27,708 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-17 08:00:27,708 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-17 08:00:27,708 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-17 08:00:27,710 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-17 08:00:27,710 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-17 08:00:27,710 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-17 08:00:27,710 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-17 08:00:27,710 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-17 08:00:27,713 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 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) [2024-11-17 08:00:27,726 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-17 08:00:27,727 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:00:27,727 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:00:27,731 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-17 08:00:27,731 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-17 08:00:27,732 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-17 08:00:27,732 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 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) [2024-11-17 08:00:27,733 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-17 08:00:27,733 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:00:27,733 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:00:27,734 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-17 08:00:27,734 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-17 08:00:27,739 INFO L745 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 11#ULTIMATE.init_returnLabel#1true assume true;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_#t~bitwise4#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 2#L16true [2024-11-17 08:00:27,740 INFO L747 eck$LassoCheckResult]: Loop: 2#L16true assume true; 5#L16-1true assume !!(main_~x~0#1 > 0);main_#t~post2#1 := main_~a~0#1;main_~a~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 10#L18true assume main_~a~0#1 > 0; 9#L19-4true assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise3#1 := 0; 15#L19true main_~x~0#1 := main_#t~bitwise3#1;havoc main_#t~bitwise3#1; 2#L16true [2024-11-17 08:00:27,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:27,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1792, now seen corresponding path program 1 times [2024-11-17 08:00:27,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:27,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587553051] [2024-11-17 08:00:27,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:27,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:27,809 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:27,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:27,825 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:27,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:27,827 INFO L85 PathProgramCache]: Analyzing trace with hash 50542000, now seen corresponding path program 1 times [2024-11-17 08:00:27,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:27,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735050699] [2024-11-17 08:00:27,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:27,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:27,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:27,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:00:27,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735050699] [2024-11-17 08:00:27,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735050699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:00:27,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:00:27,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 08:00:27,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880426740] [2024-11-17 08:00:27,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:00:27,950 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-17 08:00:27,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:00:27,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 08:00:27,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 08:00:27,982 INFO L87 Difference]: Start difference. First operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 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 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-11-17 08:00:28,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:00:28,026 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2024-11-17 08:00:28,027 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 20 transitions. [2024-11-17 08:00:28,032 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-17 08:00:28,034 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 13 states and 16 transitions. [2024-11-17 08:00:28,035 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-11-17 08:00:28,035 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-17 08:00:28,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2024-11-17 08:00:28,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:00:28,037 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2024-11-17 08:00:28,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2024-11-17 08:00:28,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-17 08:00:28,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 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) [2024-11-17 08:00:28,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2024-11-17 08:00:28,059 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2024-11-17 08:00:28,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 08:00:28,064 INFO L425 stractBuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2024-11-17 08:00:28,064 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-17 08:00:28,064 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2024-11-17 08:00:28,065 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-17 08:00:28,066 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:00:28,066 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:00:28,066 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-17 08:00:28,066 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-17 08:00:28,066 INFO L745 eck$LassoCheckResult]: Stem: 51#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 52#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_#t~bitwise4#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 46#L16 [2024-11-17 08:00:28,067 INFO L747 eck$LassoCheckResult]: Loop: 46#L16 assume true; 47#L16-1 assume !!(main_~x~0#1 > 0);main_#t~post2#1 := main_~a~0#1;main_~a~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 50#L18 assume !(main_~a~0#1 > 0); 55#L21-4 assume 0 == main_~x~0#1 || 0 == main_~x~0#1 - 1;main_#t~bitwise4#1 := 0; 56#L21 main_~x~0#1 := main_#t~bitwise4#1;havoc main_#t~bitwise4#1; 46#L16 [2024-11-17 08:00:28,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:28,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1792, now seen corresponding path program 2 times [2024-11-17 08:00:28,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:28,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193053332] [2024-11-17 08:00:28,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:28,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:28,074 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:28,076 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:28,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:28,077 INFO L85 PathProgramCache]: Analyzing trace with hash 50543185, now seen corresponding path program 1 times [2024-11-17 08:00:28,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:28,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827842666] [2024-11-17 08:00:28,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:28,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:28,085 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:28,091 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:28,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:28,093 INFO L85 PathProgramCache]: Analyzing trace with hash -214254926, now seen corresponding path program 1 times [2024-11-17 08:00:28,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:28,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390433590] [2024-11-17 08:00:28,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:28,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:28,102 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:28,108 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:28,194 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:28,198 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:28,199 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:28,199 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:28,199 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:00:28,199 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:28,199 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:28,199 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:28,200 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-06.c_Iteration2_Loop [2024-11-17 08:00:28,200 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:28,200 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:28,213 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:28,219 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:28,229 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:28,235 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:28,273 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:28,274 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:00:28,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:28,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:28,277 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) [2024-11-17 08:00:28,282 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 [2024-11-17 08:00:28,285 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:28,285 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:28,300 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:00:28,300 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise4#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:00:28,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-17 08:00:28,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:28,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:28,315 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) [2024-11-17 08:00:28,317 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 [2024-11-17 08:00:28,320 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:28,320 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:28,347 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 [2024-11-17 08:00:28,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:28,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:28,355 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) [2024-11-17 08:00:28,357 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 [2024-11-17 08:00:28,357 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:00:28,358 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:28,375 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:00:28,386 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 [2024-11-17 08:00:28,387 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:28,387 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:28,387 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:28,387 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:28,387 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:00:28,388 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:28,388 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:28,388 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:28,388 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-06.c_Iteration2_Loop [2024-11-17 08:00:28,388 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:28,388 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:28,389 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:28,395 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:28,397 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:28,403 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:28,434 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:28,437 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:00:28,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:28,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:28,440 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) [2024-11-17 08:00:28,441 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 [2024-11-17 08:00:28,442 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 [2024-11-17 08:00:28,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:28,453 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:28,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:28,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:28,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:28,456 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:28,456 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:28,458 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:00:28,461 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:00:28,461 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-17 08:00:28,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:28,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:28,482 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) [2024-11-17 08:00:28,487 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 [2024-11-17 08:00:28,491 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:00:28,491 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:00:28,491 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:00:28,492 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-17 08:00:28,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-17 08:00:28,506 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:00:28,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:28,561 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:00:28,562 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:28,587 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 08:00:28,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:28,594 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 [2024-11-17 08:00:28,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:28,662 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 [2024-11-17 08:00:28,664 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 4 Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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) [2024-11-17 08:00:28,733 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 4. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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 44 states and 57 transitions. Complement of second has 10 states. [2024-11-17 08:00:28,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2024-11-17 08:00:28,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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) [2024-11-17 08:00:28,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 29 transitions. [2024-11-17 08:00:28,736 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 2 letters. Loop has 5 letters. [2024-11-17 08:00:28,736 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:28,737 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 7 letters. Loop has 5 letters. [2024-11-17 08:00:28,737 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:28,737 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 2 letters. Loop has 10 letters. [2024-11-17 08:00:28,737 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:28,737 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 57 transitions. [2024-11-17 08:00:28,738 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-17 08:00:28,740 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 43 states and 55 transitions. [2024-11-17 08:00:28,740 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2024-11-17 08:00:28,740 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2024-11-17 08:00:28,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 55 transitions. [2024-11-17 08:00:28,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:00:28,740 INFO L218 hiAutomatonCegarLoop]: Abstraction has 43 states and 55 transitions. [2024-11-17 08:00:28,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 55 transitions. [2024-11-17 08:00:28,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 27. [2024-11-17 08:00:28,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 26 states have internal predecessors, (34), 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) [2024-11-17 08:00:28,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2024-11-17 08:00:28,743 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 34 transitions. [2024-11-17 08:00:28,743 INFO L425 stractBuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2024-11-17 08:00:28,743 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-17 08:00:28,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 34 transitions. [2024-11-17 08:00:28,744 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-17 08:00:28,744 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:00:28,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:00:28,744 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-17 08:00:28,744 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-17 08:00:28,744 INFO L745 eck$LassoCheckResult]: Stem: 166#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 167#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_#t~bitwise4#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 174#L16 assume true; 157#L16-1 [2024-11-17 08:00:28,745 INFO L747 eck$LassoCheckResult]: Loop: 157#L16-1 assume !!(main_~x~0#1 > 0);main_#t~post2#1 := main_~a~0#1;main_~a~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 160#L18 assume main_~a~0#1 > 0; 168#L19-4 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 169#L19-3 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise3#1 := main_~x~0#1; 153#L19 main_~x~0#1 := main_#t~bitwise3#1;havoc main_#t~bitwise3#1; 156#L16 assume true; 157#L16-1 [2024-11-17 08:00:28,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:28,745 INFO L85 PathProgramCache]: Analyzing trace with hash 55575, now seen corresponding path program 1 times [2024-11-17 08:00:28,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:28,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856206646] [2024-11-17 08:00:28,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:28,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:28,747 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:28,749 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:28,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:28,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1533317900, now seen corresponding path program 1 times [2024-11-17 08:00:28,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:28,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969249364] [2024-11-17 08:00:28,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:28,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:28,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:28,757 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:28,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:28,760 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:28,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:28,761 INFO L85 PathProgramCache]: Analyzing trace with hash 258458530, now seen corresponding path program 1 times [2024-11-17 08:00:28,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:28,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393773143] [2024-11-17 08:00:28,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:28,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:28,765 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:28,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:28,769 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:28,801 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:28,801 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:28,801 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:28,801 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:28,802 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:00:28,802 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:28,802 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:28,802 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:28,802 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-06.c_Iteration3_Loop [2024-11-17 08:00:28,802 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:28,802 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:28,802 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:28,805 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:28,812 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:28,848 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:28,848 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:00:28,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:28,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:28,852 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) [2024-11-17 08:00:28,853 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 [2024-11-17 08:00:28,854 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:28,855 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:28,867 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:00:28,868 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: [] [2024-11-17 08:00:28,878 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 [2024-11-17 08:00:28,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:28,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:28,880 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) [2024-11-17 08:00:28,881 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 [2024-11-17 08:00:28,882 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:28,882 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:28,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:28,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:28,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:28,921 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) [2024-11-17 08:00:28,922 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 [2024-11-17 08:00:28,923 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:00:28,923 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:28,973 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:00:28,985 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 [2024-11-17 08:00:28,985 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:28,985 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:28,985 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:28,985 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:28,985 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:00:28,985 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:28,985 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:28,985 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:28,986 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-06.c_Iteration3_Loop [2024-11-17 08:00:28,986 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:28,987 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:28,989 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:28,997 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:29,002 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:29,031 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:29,031 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:00:29,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,035 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) [2024-11-17 08:00:29,042 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 [2024-11-17 08:00:29,043 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 [2024-11-17 08:00:29,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:29,053 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:29,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:29,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:29,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:29,056 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:29,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:29,058 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:00:29,061 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-17 08:00:29,061 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:00:29,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,063 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) [2024-11-17 08:00:29,064 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 [2024-11-17 08:00:29,066 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:00:29,066 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:00:29,066 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:00:29,066 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [] [2024-11-17 08:00:29,077 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-17 08:00:29,079 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:00:29,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:29,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:00:29,093 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:29,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:29,100 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:00:29,101 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:29,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:29,132 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 [2024-11-17 08:00:29,132 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 34 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2024-11-17 08:00:29,158 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 34 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 61 states and 76 transitions. Complement of second has 6 states. [2024-11-17 08:00:29,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-17 08:00:29,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2024-11-17 08:00:29,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2024-11-17 08:00:29,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 3 letters. Loop has 6 letters. [2024-11-17 08:00:29,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:29,160 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 6 letters. [2024-11-17 08:00:29,160 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:29,160 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 3 letters. Loop has 12 letters. [2024-11-17 08:00:29,160 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:29,160 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 76 transitions. [2024-11-17 08:00:29,161 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-17 08:00:29,162 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 61 states and 76 transitions. [2024-11-17 08:00:29,162 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-11-17 08:00:29,162 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-11-17 08:00:29,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 76 transitions. [2024-11-17 08:00:29,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:00:29,163 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 76 transitions. [2024-11-17 08:00:29,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 76 transitions. [2024-11-17 08:00:29,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 52. [2024-11-17 08:00:29,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 51 states have internal predecessors, (67), 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) [2024-11-17 08:00:29,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2024-11-17 08:00:29,166 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 67 transitions. [2024-11-17 08:00:29,166 INFO L425 stractBuchiCegarLoop]: Abstraction has 52 states and 67 transitions. [2024-11-17 08:00:29,166 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-17 08:00:29,166 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 67 transitions. [2024-11-17 08:00:29,167 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-17 08:00:29,167 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:00:29,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:00:29,168 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-17 08:00:29,168 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:00:29,168 INFO L745 eck$LassoCheckResult]: Stem: 305#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 306#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_#t~bitwise4#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 312#L16 assume true; 327#L16-1 assume !!(main_~x~0#1 > 0);main_#t~post2#1 := main_~a~0#1;main_~a~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 298#L18 [2024-11-17 08:00:29,168 INFO L747 eck$LassoCheckResult]: Loop: 298#L18 assume !(main_~a~0#1 > 0); 310#L21-4 assume !(0 == main_~x~0#1 || 0 == main_~x~0#1 - 1); 301#L21-3 assume !(main_~x~0#1 == main_~x~0#1 - 1); 302#L21-2 havoc main_#t~bitwise4#1;assume (((((main_~x~0#1 < 0 && main_~x~0#1 - 1 >= 0) || main_#t~bitwise4#1 <= main_~x~0#1) && ((main_~x~0#1 >= 0 && main_~x~0#1 - 1 < 0) || main_#t~bitwise4#1 <= main_~x~0#1 - 1)) && ((main_~x~0#1 < 0 && main_~x~0#1 - 1 < 0) || main_#t~bitwise4#1 >= 0)) && ((main_~x~0#1 >= 0 && main_~x~0#1 - 1 >= 0) || main_#t~bitwise4#1 > main_~x~0#1 + (main_~x~0#1 - 1))) && main_#t~bitwise4#1 >= -2147483648; 313#L21 main_~x~0#1 := main_#t~bitwise4#1;havoc main_#t~bitwise4#1; 294#L16 assume true; 295#L16-1 assume !!(main_~x~0#1 > 0);main_#t~post2#1 := main_~a~0#1;main_~a~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 298#L18 [2024-11-17 08:00:29,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:29,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1722847, now seen corresponding path program 1 times [2024-11-17 08:00:29,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:29,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59264087] [2024-11-17 08:00:29,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:29,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:29,172 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:29,174 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:29,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:29,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1010771133, now seen corresponding path program 1 times [2024-11-17 08:00:29,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:29,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776117306] [2024-11-17 08:00:29,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:29,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:29,181 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:29,190 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:29,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:29,190 INFO L85 PathProgramCache]: Analyzing trace with hash 368420127, now seen corresponding path program 1 times [2024-11-17 08:00:29,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:29,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152466301] [2024-11-17 08:00:29,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:29,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:29,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:29,196 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:29,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:29,201 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:29,242 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:29,243 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:29,243 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:29,243 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:29,243 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:00:29,243 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,243 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:29,243 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:29,243 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-06.c_Iteration4_Loop [2024-11-17 08:00:29,243 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:29,243 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:29,244 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:29,249 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:29,253 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:29,255 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:29,279 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:29,279 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:00:29,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,281 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) [2024-11-17 08:00:29,285 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 [2024-11-17 08:00:29,290 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:29,291 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:29,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-17 08:00:29,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,337 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) [2024-11-17 08:00:29,339 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 [2024-11-17 08:00:29,340 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:00:29,340 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:29,371 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:00:29,371 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0#1=0} Honda state: {ULTIMATE.start_main_~a~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~a~0#1=0}, {ULTIMATE.start_main_~a~0#1=0}, {ULTIMATE.start_main_~a~0#1=-1}] Lambdas: [12, 4, 1] Nus: [0, 0] [2024-11-17 08:00:29,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:29,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,384 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) [2024-11-17 08:00:29,385 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 [2024-11-17 08:00:29,386 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:29,386 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:29,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-17 08:00:29,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,410 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) [2024-11-17 08:00:29,410 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 [2024-11-17 08:00:29,412 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:00:29,412 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:29,491 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:00:29,499 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 [2024-11-17 08:00:29,502 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:29,502 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:29,502 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:29,502 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:29,502 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:00:29,502 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,502 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:29,502 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:29,502 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-06.c_Iteration4_Loop [2024-11-17 08:00:29,502 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:29,502 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:29,503 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:29,508 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:29,510 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:29,515 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:29,536 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:29,537 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:00:29,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,541 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) [2024-11-17 08:00:29,542 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 [2024-11-17 08:00:29,543 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 [2024-11-17 08:00:29,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:29,553 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:29,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:29,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:29,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:29,554 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:29,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:29,556 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:00:29,571 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 [2024-11-17 08:00:29,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,572 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) [2024-11-17 08:00:29,575 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 [2024-11-17 08:00:29,575 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 [2024-11-17 08:00:29,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:29,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:29,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:29,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:29,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:29,586 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:29,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:29,588 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:00:29,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:29,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,600 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) [2024-11-17 08:00:29,601 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 [2024-11-17 08:00:29,602 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 [2024-11-17 08:00:29,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:29,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:29,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:29,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:29,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:29,613 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:29,613 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:29,617 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:00:29,621 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:00:29,621 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-17 08:00:29,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:29,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:29,626 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) [2024-11-17 08:00:29,631 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 [2024-11-17 08:00:29,636 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:00:29,636 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:00:29,636 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:00:29,636 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-17 08:00:29,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:29,647 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:00:29,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:29,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:29,660 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:00:29,660 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:29,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:29,669 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 08:00:29,669 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:29,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:29,757 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2024-11-17 08:00:29,757 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 67 transitions. cyclomatic complexity: 19 Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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) [2024-11-17 08:00:29,796 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 67 transitions. cyclomatic complexity: 19. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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 125 states and 151 transitions. Complement of second has 11 states. [2024-11-17 08:00:29,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2024-11-17 08:00:29,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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) [2024-11-17 08:00:29,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 14 transitions. [2024-11-17 08:00:29,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 14 transitions. Stem has 4 letters. Loop has 7 letters. [2024-11-17 08:00:29,798 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:29,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 14 transitions. Stem has 11 letters. Loop has 7 letters. [2024-11-17 08:00:29,798 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:29,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 14 transitions. Stem has 4 letters. Loop has 14 letters. [2024-11-17 08:00:29,798 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:29,798 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 151 transitions. [2024-11-17 08:00:29,801 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-17 08:00:29,801 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 85 states and 109 transitions. [2024-11-17 08:00:29,802 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2024-11-17 08:00:29,802 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2024-11-17 08:00:29,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 85 states and 109 transitions. [2024-11-17 08:00:29,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:00:29,802 INFO L218 hiAutomatonCegarLoop]: Abstraction has 85 states and 109 transitions. [2024-11-17 08:00:29,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states and 109 transitions. [2024-11-17 08:00:29,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 67. [2024-11-17 08:00:29,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 67 states have (on average 1.2537313432835822) internal successors, (84), 66 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:00:29,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 84 transitions. [2024-11-17 08:00:29,806 INFO L240 hiAutomatonCegarLoop]: Abstraction has 67 states and 84 transitions. [2024-11-17 08:00:29,806 INFO L425 stractBuchiCegarLoop]: Abstraction has 67 states and 84 transitions. [2024-11-17 08:00:29,806 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-17 08:00:29,806 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 67 states and 84 transitions. [2024-11-17 08:00:29,807 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-17 08:00:29,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:00:29,807 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:00:29,807 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:00:29,807 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:00:29,807 INFO L745 eck$LassoCheckResult]: Stem: 547#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 548#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_#t~bitwise4#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 535#L16 assume true; 536#L16-1 assume !!(main_~x~0#1 > 0);main_#t~post2#1 := main_~a~0#1;main_~a~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 544#L18 assume main_~a~0#1 > 0; 571#L19-4 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 563#L19-3 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise3#1 := main_~x~0#1; 532#L19 main_~x~0#1 := main_#t~bitwise3#1;havoc main_#t~bitwise3#1; 556#L16 [2024-11-17 08:00:29,808 INFO L747 eck$LassoCheckResult]: Loop: 556#L16 assume true; 564#L16-1 assume !!(main_~x~0#1 > 0);main_#t~post2#1 := main_~a~0#1;main_~a~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 552#L18 assume !(main_~a~0#1 > 0); 553#L21-4 assume !(0 == main_~x~0#1 || 0 == main_~x~0#1 - 1); 540#L21-3 assume !(main_~x~0#1 == main_~x~0#1 - 1); 541#L21-2 havoc main_#t~bitwise4#1;assume (((((main_~x~0#1 < 0 && main_~x~0#1 - 1 >= 0) || main_#t~bitwise4#1 <= main_~x~0#1) && ((main_~x~0#1 >= 0 && main_~x~0#1 - 1 < 0) || main_#t~bitwise4#1 <= main_~x~0#1 - 1)) && ((main_~x~0#1 < 0 && main_~x~0#1 - 1 < 0) || main_#t~bitwise4#1 >= 0)) && ((main_~x~0#1 >= 0 && main_~x~0#1 - 1 >= 0) || main_#t~bitwise4#1 > main_~x~0#1 + (main_~x~0#1 - 1))) && main_#t~bitwise4#1 >= -2147483648; 555#L21 main_~x~0#1 := main_#t~bitwise4#1;havoc main_#t~bitwise4#1; 556#L16 [2024-11-17 08:00:29,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:29,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1948000021, now seen corresponding path program 2 times [2024-11-17 08:00:29,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:29,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058393445] [2024-11-17 08:00:29,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:29,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:29,812 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:29,815 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:29,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:29,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1327515167, now seen corresponding path program 2 times [2024-11-17 08:00:29,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:29,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930807353] [2024-11-17 08:00:29,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:29,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:29,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:29,820 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:29,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:29,824 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:29,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:29,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1517631349, now seen corresponding path program 1 times [2024-11-17 08:00:29,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:29,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65086929] [2024-11-17 08:00:29,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:29,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:29,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:29,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:29,896 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 [2024-11-17 08:00:29,990 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:29,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:00:29,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65086929] [2024-11-17 08:00:29,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65086929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:00:29,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:00:29,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 08:00:29,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470707883] [2024-11-17 08:00:29,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:00:30,076 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:30,076 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:30,076 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:30,076 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:30,076 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:00:30,076 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,076 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:30,076 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:30,077 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-06.c_Iteration5_Loop [2024-11-17 08:00:30,077 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:30,077 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:30,077 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,086 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,093 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,094 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,128 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:30,129 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:00:30,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,130 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) [2024-11-17 08:00:30,136 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 [2024-11-17 08:00:30,137 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:30,137 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:30,148 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:00:30,149 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: [] [2024-11-17 08:00:30,159 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-17 08:00:30,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,161 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) [2024-11-17 08:00:30,163 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 [2024-11-17 08:00:30,164 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:30,164 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:30,185 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 [2024-11-17 08:00:30,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,187 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) [2024-11-17 08:00:30,188 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 [2024-11-17 08:00:30,189 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:00:30,189 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:30,241 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:00:30,241 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0#1=-2} Honda state: {ULTIMATE.start_main_~a~0#1=-2} Generalized eigenvectors: [{ULTIMATE.start_main_~a~0#1=0}, {ULTIMATE.start_main_~a~0#1=-1}, {ULTIMATE.start_main_~a~0#1=0}] Lambdas: [4, 1, 10] Nus: [0, 1] [2024-11-17 08:00:30,252 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 [2024-11-17 08:00:30,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,253 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) [2024-11-17 08:00:30,254 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 [2024-11-17 08:00:30,256 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:30,256 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:30,268 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:00:30,268 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise4#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:00:30,279 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 [2024-11-17 08:00:30,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,280 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) [2024-11-17 08:00:30,281 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 [2024-11-17 08:00:30,283 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:30,283 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:30,304 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 [2024-11-17 08:00:30,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,306 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) [2024-11-17 08:00:30,307 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 [2024-11-17 08:00:30,308 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:00:30,308 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:30,337 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:00:30,341 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 [2024-11-17 08:00:30,341 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:30,341 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:30,341 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:30,341 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:30,341 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:00:30,341 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,341 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:30,341 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:30,341 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-06.c_Iteration5_Loop [2024-11-17 08:00:30,341 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:30,341 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:30,342 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,344 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,352 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,353 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,388 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:30,388 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:00:30,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,389 INFO L229 MonitoredProcess]: Starting monitored process 26 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) [2024-11-17 08:00:30,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-17 08:00:30,391 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 [2024-11-17 08:00:30,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:30,401 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:30,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:30,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:30,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:30,402 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:30,402 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:30,403 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:00:30,413 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-17 08:00:30,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,415 INFO L229 MonitoredProcess]: Starting monitored process 27 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) [2024-11-17 08:00:30,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-17 08:00:30,417 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 [2024-11-17 08:00:30,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:30,427 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:30,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:30,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:30,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:30,427 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:30,427 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:30,431 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:00:30,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-11-17 08:00:30,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,443 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2024-11-17 08:00:30,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-17 08:00:30,446 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 [2024-11-17 08:00:30,456 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:30,457 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:30,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:30,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:30,457 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:30,457 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:30,457 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:30,458 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:00:30,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:30,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,471 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2024-11-17 08:00:30,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-17 08:00:30,474 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 [2024-11-17 08:00:30,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:30,484 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:30,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:30,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:30,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:30,485 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:30,486 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:30,488 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:00:30,491 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:00:30,491 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-17 08:00:30,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,493 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2024-11-17 08:00:30,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-17 08:00:30,504 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:00:30,505 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:00:30,505 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:00:30,505 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-17 08:00:30,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:30,516 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:00:30,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:30,533 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:00:30,533 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:30,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:30,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 08:00:30,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:30,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:30,576 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 [2024-11-17 08:00:30,576 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 67 states and 84 transitions. cyclomatic complexity: 23 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2024-11-17 08:00:30,619 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 67 states and 84 transitions. cyclomatic complexity: 23. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 209 states and 257 transitions. Complement of second has 9 states. [2024-11-17 08:00:30,620 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 [2024-11-17 08:00:30,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2024-11-17 08:00:30,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2024-11-17 08:00:30,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 8 letters. Loop has 7 letters. [2024-11-17 08:00:30,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:30,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 15 letters. Loop has 7 letters. [2024-11-17 08:00:30,621 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:30,621 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 8 letters. Loop has 14 letters. [2024-11-17 08:00:30,621 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:30,621 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 209 states and 257 transitions. [2024-11-17 08:00:30,623 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2024-11-17 08:00:30,623 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 209 states to 148 states and 186 transitions. [2024-11-17 08:00:30,624 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2024-11-17 08:00:30,624 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2024-11-17 08:00:30,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 186 transitions. [2024-11-17 08:00:30,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:00:30,624 INFO L218 hiAutomatonCegarLoop]: Abstraction has 148 states and 186 transitions. [2024-11-17 08:00:30,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 186 transitions. [2024-11-17 08:00:30,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 114. [2024-11-17 08:00:30,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 114 states have (on average 1.2543859649122806) internal successors, (143), 113 states have internal predecessors, (143), 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) [2024-11-17 08:00:30,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 143 transitions. [2024-11-17 08:00:30,629 INFO L240 hiAutomatonCegarLoop]: Abstraction has 114 states and 143 transitions. [2024-11-17 08:00:30,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:00:30,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 08:00:30,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-17 08:00:30,630 INFO L87 Difference]: Start difference. First operand 114 states and 143 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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) [2024-11-17 08:00:30,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:00:30,679 INFO L93 Difference]: Finished difference Result 158 states and 194 transitions. [2024-11-17 08:00:30,679 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 158 states and 194 transitions. [2024-11-17 08:00:30,680 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-17 08:00:30,681 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 158 states to 149 states and 184 transitions. [2024-11-17 08:00:30,681 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2024-11-17 08:00:30,681 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-11-17 08:00:30,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 149 states and 184 transitions. [2024-11-17 08:00:30,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:00:30,681 INFO L218 hiAutomatonCegarLoop]: Abstraction has 149 states and 184 transitions. [2024-11-17 08:00:30,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states and 184 transitions. [2024-11-17 08:00:30,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 130. [2024-11-17 08:00:30,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 130 states have (on average 1.2307692307692308) internal successors, (160), 129 states have internal predecessors, (160), 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) [2024-11-17 08:00:30,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 160 transitions. [2024-11-17 08:00:30,687 INFO L240 hiAutomatonCegarLoop]: Abstraction has 130 states and 160 transitions. [2024-11-17 08:00:30,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 08:00:30,691 INFO L425 stractBuchiCegarLoop]: Abstraction has 130 states and 160 transitions. [2024-11-17 08:00:30,691 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-17 08:00:30,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 130 states and 160 transitions. [2024-11-17 08:00:30,691 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-17 08:00:30,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:00:30,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:00:30,692 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-17 08:00:30,692 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:00:30,692 INFO L745 eck$LassoCheckResult]: Stem: 1170#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1171#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_#t~bitwise4#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 1159#L16 assume true; 1161#L16-1 assume !!(main_~x~0#1 > 0);main_#t~post2#1 := main_~a~0#1;main_~a~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 1216#L18 assume !(main_~a~0#1 > 0); 1192#L21-4 assume 0 == main_~x~0#1 || 0 == main_~x~0#1 - 1;main_#t~bitwise4#1 := 0; 1191#L21 main_~x~0#1 := main_#t~bitwise4#1;havoc main_#t~bitwise4#1; 1189#L16 assume true; 1188#L16-1 [2024-11-17 08:00:30,692 INFO L747 eck$LassoCheckResult]: Loop: 1188#L16-1 assume !!(main_~x~0#1 > 0);main_#t~post2#1 := main_~a~0#1;main_~a~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 1174#L18 assume !(main_~a~0#1 > 0); 1175#L21-4 assume !(0 == main_~x~0#1 || 0 == main_~x~0#1 - 1); 1166#L21-3 assume !(main_~x~0#1 == main_~x~0#1 - 1); 1167#L21-2 havoc main_#t~bitwise4#1;assume (((((main_~x~0#1 < 0 && main_~x~0#1 - 1 >= 0) || main_#t~bitwise4#1 <= main_~x~0#1) && ((main_~x~0#1 >= 0 && main_~x~0#1 - 1 < 0) || main_#t~bitwise4#1 <= main_~x~0#1 - 1)) && ((main_~x~0#1 < 0 && main_~x~0#1 - 1 < 0) || main_#t~bitwise4#1 >= 0)) && ((main_~x~0#1 >= 0 && main_~x~0#1 - 1 >= 0) || main_#t~bitwise4#1 > main_~x~0#1 + (main_~x~0#1 - 1))) && main_#t~bitwise4#1 >= -2147483648; 1178#L21 main_~x~0#1 := main_#t~bitwise4#1;havoc main_#t~bitwise4#1; 1179#L16 assume true; 1188#L16-1 [2024-11-17 08:00:30,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:30,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1948031909, now seen corresponding path program 2 times [2024-11-17 08:00:30,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:30,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024307519] [2024-11-17 08:00:30,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:30,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,696 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,699 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:30,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:30,699 INFO L85 PathProgramCache]: Analyzing trace with hash 323629997, now seen corresponding path program 3 times [2024-11-17 08:00:30,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:30,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911617321] [2024-11-17 08:00:30,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:30,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,703 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:30,707 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:30,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:30,707 INFO L85 PathProgramCache]: Analyzing trace with hash -367396983, now seen corresponding path program 1 times [2024-11-17 08:00:30,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:30,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937444902] [2024-11-17 08:00:30,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:30,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:30,740 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:30,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:00:30,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937444902] [2024-11-17 08:00:30,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937444902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:00:30,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:00:30,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 08:00:30,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51486076] [2024-11-17 08:00:30,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:00:30,790 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:30,791 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:30,791 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:30,791 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:30,791 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:00:30,791 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,791 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:30,791 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:30,791 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-06.c_Iteration6_Loop [2024-11-17 08:00:30,791 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:30,791 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:30,792 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,802 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,803 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,805 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,833 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:30,833 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:00:30,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,836 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2024-11-17 08:00:30,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-17 08:00:30,838 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:30,838 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:30,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:30,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,866 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2024-11-17 08:00:30,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-17 08:00:30,867 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:00:30,868 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:30,894 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:00:30,898 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-11-17 08:00:30,898 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:30,899 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:30,899 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:30,899 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:30,899 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:00:30,899 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,899 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:30,899 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:30,899 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-06.c_Iteration6_Loop [2024-11-17 08:00:30,899 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:30,899 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:30,899 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,909 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,913 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,921 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:30,961 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:30,961 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:00:30,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,963 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2024-11-17 08:00:30,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-17 08:00:30,965 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 [2024-11-17 08:00:30,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:30,976 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:30,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:30,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:30,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:30,977 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:30,977 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:30,979 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:00:30,980 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-17 08:00:30,980 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:00:30,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:30,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:30,984 INFO L229 MonitoredProcess]: Starting monitored process 34 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) [2024-11-17 08:00:30,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-17 08:00:30,988 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:00:30,988 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:00:30,988 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:00:30,988 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-17 08:00:30,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-11-17 08:00:30,999 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:00:31,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:31,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:00:31,016 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:31,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 08:00:31,027 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:31,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:31,075 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2024-11-17 08:00:31,075 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 130 states and 160 transitions. cyclomatic complexity: 40 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2024-11-17 08:00:31,109 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 130 states and 160 transitions. cyclomatic complexity: 40. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 198 states and 241 transitions. Complement of second has 9 states. [2024-11-17 08:00:31,111 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 [2024-11-17 08:00:31,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2024-11-17 08:00:31,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2024-11-17 08:00:31,112 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 8 letters. Loop has 7 letters. [2024-11-17 08:00:31,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:31,112 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 15 letters. Loop has 7 letters. [2024-11-17 08:00:31,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:31,112 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 8 letters. Loop has 14 letters. [2024-11-17 08:00:31,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:31,112 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 198 states and 241 transitions. [2024-11-17 08:00:31,113 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-17 08:00:31,114 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 198 states to 132 states and 164 transitions. [2024-11-17 08:00:31,115 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2024-11-17 08:00:31,115 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-11-17 08:00:31,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 132 states and 164 transitions. [2024-11-17 08:00:31,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:00:31,115 INFO L218 hiAutomatonCegarLoop]: Abstraction has 132 states and 164 transitions. [2024-11-17 08:00:31,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states and 164 transitions. [2024-11-17 08:00:31,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 129. [2024-11-17 08:00:31,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 129 states have (on average 1.248062015503876) internal successors, (161), 128 states have internal predecessors, (161), 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) [2024-11-17 08:00:31,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 161 transitions. [2024-11-17 08:00:31,120 INFO L240 hiAutomatonCegarLoop]: Abstraction has 129 states and 161 transitions. [2024-11-17 08:00:31,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:00:31,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 08:00:31,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 08:00:31,121 INFO L87 Difference]: Start difference. First operand 129 states and 161 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-11-17 08:00:31,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:00:31,142 INFO L93 Difference]: Finished difference Result 129 states and 147 transitions. [2024-11-17 08:00:31,142 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 129 states and 147 transitions. [2024-11-17 08:00:31,143 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-17 08:00:31,143 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 129 states to 49 states and 56 transitions. [2024-11-17 08:00:31,143 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-11-17 08:00:31,144 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-11-17 08:00:31,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 56 transitions. [2024-11-17 08:00:31,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:00:31,144 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 56 transitions. [2024-11-17 08:00:31,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 56 transitions. [2024-11-17 08:00:31,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-17 08:00:31,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.1428571428571428) internal successors, (56), 48 states have internal predecessors, (56), 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) [2024-11-17 08:00:31,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 56 transitions. [2024-11-17 08:00:31,146 INFO L240 hiAutomatonCegarLoop]: Abstraction has 49 states and 56 transitions. [2024-11-17 08:00:31,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 08:00:31,150 INFO L425 stractBuchiCegarLoop]: Abstraction has 49 states and 56 transitions. [2024-11-17 08:00:31,150 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-17 08:00:31,150 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 56 transitions. [2024-11-17 08:00:31,150 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-17 08:00:31,150 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:00:31,150 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:00:31,151 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-17 08:00:31,151 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:00:31,151 INFO L745 eck$LassoCheckResult]: Stem: 1831#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1832#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~post2#1, main_#t~bitwise3#1, main_#t~bitwise4#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 1816#L16 assume true; 1817#L16-1 assume !!(main_~x~0#1 > 0);main_#t~post2#1 := main_~a~0#1;main_~a~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 1829#L18 assume main_~a~0#1 > 0; 1833#L19-4 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 1834#L19-3 assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise3#1 := main_~x~0#1; 1844#L19 main_~x~0#1 := main_#t~bitwise3#1;havoc main_#t~bitwise3#1; 1818#L16 assume true; 1819#L16-1 assume !!(main_~x~0#1 > 0);main_#t~post2#1 := main_~a~0#1;main_~a~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 1830#L18 assume main_~a~0#1 > 0; 1848#L19-4 assume !(0 == main_~x~0#1 || 0 == main_~a~0#1); 1845#L19-3 assume !(main_~x~0#1 == main_~a~0#1); 1820#L19-2 havoc main_#t~bitwise3#1;assume (((((main_~x~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise3#1 <= main_~x~0#1) && ((main_~x~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise3#1 <= main_~a~0#1)) && ((main_~x~0#1 < 0 && main_~a~0#1 < 0) || main_#t~bitwise3#1 >= 0)) && ((main_~x~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise3#1 > main_~x~0#1 + main_~a~0#1)) && main_#t~bitwise3#1 >= -2147483648; 1821#L19 main_~x~0#1 := main_#t~bitwise3#1;havoc main_#t~bitwise3#1; 1840#L16 [2024-11-17 08:00:31,151 INFO L747 eck$LassoCheckResult]: Loop: 1840#L16 assume true; 1847#L16-1 assume !!(main_~x~0#1 > 0);main_#t~post2#1 := main_~a~0#1;main_~a~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 1835#L18 assume !(main_~a~0#1 > 0); 1836#L21-4 assume !(0 == main_~x~0#1 || 0 == main_~x~0#1 - 1); 1824#L21-3 assume !(main_~x~0#1 == main_~x~0#1 - 1); 1825#L21-2 havoc main_#t~bitwise4#1;assume (((((main_~x~0#1 < 0 && main_~x~0#1 - 1 >= 0) || main_#t~bitwise4#1 <= main_~x~0#1) && ((main_~x~0#1 >= 0 && main_~x~0#1 - 1 < 0) || main_#t~bitwise4#1 <= main_~x~0#1 - 1)) && ((main_~x~0#1 < 0 && main_~x~0#1 - 1 < 0) || main_#t~bitwise4#1 >= 0)) && ((main_~x~0#1 >= 0 && main_~x~0#1 - 1 >= 0) || main_#t~bitwise4#1 > main_~x~0#1 + (main_~x~0#1 - 1))) && main_#t~bitwise4#1 >= -2147483648; 1839#L21 main_~x~0#1 := main_#t~bitwise4#1;havoc main_#t~bitwise4#1; 1840#L16 [2024-11-17 08:00:31,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:31,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1518770110, now seen corresponding path program 1 times [2024-11-17 08:00:31,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:31,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100206881] [2024-11-17 08:00:31,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:31,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:31,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:31,157 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:31,162 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:31,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:31,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1327515167, now seen corresponding path program 4 times [2024-11-17 08:00:31,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:31,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584349892] [2024-11-17 08:00:31,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:31,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:31,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:31,166 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:00:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:00:31,169 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:00:31,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:31,169 INFO L85 PathProgramCache]: Analyzing trace with hash 435045054, now seen corresponding path program 1 times [2024-11-17 08:00:31,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:00:31,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891140871] [2024-11-17 08:00:31,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:00:31,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:00:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:31,256 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 08:00:31,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:00:31,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891140871] [2024-11-17 08:00:31,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891140871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:00:31,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:00:31,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 08:00:31,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868345823] [2024-11-17 08:00:31,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:00:31,334 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:31,334 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:31,334 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:31,335 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:31,335 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:00:31,335 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:31,335 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:31,335 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:31,335 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-06.c_Iteration7_Loop [2024-11-17 08:00:31,335 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:31,335 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:31,336 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:31,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:31,352 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:31,354 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:31,356 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:31,357 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-17 08:00:31,384 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:31,384 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:00:31,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:31,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:31,385 INFO L229 MonitoredProcess]: Starting monitored process 35 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) [2024-11-17 08:00:31,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-17 08:00:31,389 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:00:31,389 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:31,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-11-17 08:00:31,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:31,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:31,420 INFO L229 MonitoredProcess]: Starting monitored process 36 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) [2024-11-17 08:00:31,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-17 08:00:31,422 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:00:31,422 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:00:31,478 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:00:31,485 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-11-17 08:00:31,485 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:00:31,485 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:00:31,485 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:00:31,485 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:00:31,485 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:00:31,486 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:31,486 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:00:31,486 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:00:31,486 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-06.c_Iteration7_Loop [2024-11-17 08:00:31,486 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:00:31,486 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:00:31,487 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:31,507 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:31,509 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:31,511 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:00:31,599 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:00:31,599 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:00:31,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:31,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:31,601 INFO L229 MonitoredProcess]: Starting monitored process 37 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) [2024-11-17 08:00:31,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-17 08:00:31,603 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 [2024-11-17 08:00:31,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:00:31,613 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:00:31,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:00:31,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:00:31,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:00:31,614 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:00:31,614 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:00:31,616 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:00:31,623 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:00:31,623 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-17 08:00:31,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:00:31,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:00:31,624 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2024-11-17 08:00:31,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-17 08:00:31,629 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:00:31,629 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:00:31,629 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:00:31,629 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-17 08:00:31,648 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-11-17 08:00:31,649 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:00:31,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:31,709 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:00:31,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:31,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 08:00:31,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:31,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:31,843 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 [2024-11-17 08:00:31,843 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 56 transitions. cyclomatic complexity: 11 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-11-17 08:00:31,922 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 56 transitions. cyclomatic complexity: 11. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 71 states and 81 transitions. Complement of second has 9 states. [2024-11-17 08:00:31,924 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 [2024-11-17 08:00:31,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-11-17 08:00:31,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2024-11-17 08:00:31,924 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 15 letters. Loop has 7 letters. [2024-11-17 08:00:31,924 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:31,925 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:00:31,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:31,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:31,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:00:31,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:31,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 08:00:31,996 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:32,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:32,069 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-17 08:00:32,069 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 56 transitions. cyclomatic complexity: 11 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-11-17 08:00:32,113 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 56 transitions. cyclomatic complexity: 11. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 71 states and 81 transitions. Complement of second has 9 states. [2024-11-17 08:00:32,113 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 [2024-11-17 08:00:32,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-11-17 08:00:32,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2024-11-17 08:00:32,114 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 15 letters. Loop has 7 letters. [2024-11-17 08:00:32,114 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:32,114 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:00:32,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:00:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:32,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:00:32,155 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:00:32,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 08:00:32,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:00:32,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:00:32,279 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-17 08:00:32,279 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 56 transitions. cyclomatic complexity: 11 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-11-17 08:00:32,337 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 56 transitions. cyclomatic complexity: 11. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 75 states and 85 transitions. Complement of second has 8 states. [2024-11-17 08:00:32,337 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 [2024-11-17 08:00:32,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-11-17 08:00:32,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2024-11-17 08:00:32,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 15 letters. Loop has 7 letters. [2024-11-17 08:00:32,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:32,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 22 letters. Loop has 7 letters. [2024-11-17 08:00:32,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:32,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 15 letters. Loop has 14 letters. [2024-11-17 08:00:32,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:00:32,339 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 85 transitions. [2024-11-17 08:00:32,340 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-17 08:00:32,340 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 0 states and 0 transitions. [2024-11-17 08:00:32,340 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-17 08:00:32,340 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-17 08:00:32,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-17 08:00:32,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:00:32,340 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:00:32,340 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:00:32,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:00:32,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 08:00:32,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-17 08:00:32,340 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 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) [2024-11-17 08:00:32,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:00:32,340 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-11-17 08:00:32,340 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-11-17 08:00:32,340 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-17 08:00:32,341 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-11-17 08:00:32,341 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-17 08:00:32,341 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-17 08:00:32,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-17 08:00:32,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:00:32,341 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:00:32,341 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:00:32,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-17 08:00:32,348 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:00:32,348 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-17 08:00:32,348 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-17 08:00:32,348 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-17 08:00:32,348 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-17 08:00:32,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.11 08:00:32 BoogieIcfgContainer [2024-11-17 08:00:32,358 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-17 08:00:32,362 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 08:00:32,362 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 08:00:32,362 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 08:00:32,363 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:00:27" (3/4) ... [2024-11-17 08:00:32,364 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-17 08:00:32,365 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 08:00:32,366 INFO L158 Benchmark]: Toolchain (without parser) took 5206.94ms. Allocated memory was 144.7MB in the beginning and 245.4MB in the end (delta: 100.7MB). Free memory was 77.0MB in the beginning and 165.5MB in the end (delta: -88.6MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2024-11-17 08:00:32,366 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 144.7MB. Free memory is still 109.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:00:32,366 INFO L158 Benchmark]: CACSL2BoogieTranslator took 161.90ms. Allocated memory is still 144.7MB. Free memory was 76.8MB in the beginning and 65.5MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-17 08:00:32,370 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.58ms. Allocated memory is still 144.7MB. Free memory was 65.5MB in the beginning and 63.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:00:32,370 INFO L158 Benchmark]: Boogie Preprocessor took 21.02ms. Allocated memory is still 144.7MB. Free memory was 63.9MB in the beginning and 62.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:00:32,371 INFO L158 Benchmark]: IcfgBuilder took 280.00ms. Allocated memory was 144.7MB in the beginning and 203.4MB in the end (delta: 58.7MB). Free memory was 62.6MB in the beginning and 166.7MB in the end (delta: -104.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-17 08:00:32,371 INFO L158 Benchmark]: BuchiAutomizer took 4704.19ms. Allocated memory was 203.4MB in the beginning and 245.4MB in the end (delta: 41.9MB). Free memory was 166.7MB in the beginning and 165.5MB in the end (delta: 1.1MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2024-11-17 08:00:32,371 INFO L158 Benchmark]: Witness Printer took 3.21ms. Allocated memory is still 245.4MB. Free memory is still 165.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:00:32,372 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 144.7MB. Free memory is still 109.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 161.90ms. Allocated memory is still 144.7MB. Free memory was 76.8MB in the beginning and 65.5MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.58ms. Allocated memory is still 144.7MB. Free memory was 65.5MB in the beginning and 63.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.02ms. Allocated memory is still 144.7MB. Free memory was 63.9MB in the beginning and 62.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 280.00ms. Allocated memory was 144.7MB in the beginning and 203.4MB in the end (delta: 58.7MB). Free memory was 62.6MB in the beginning and 166.7MB in the end (delta: -104.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 4704.19ms. Allocated memory was 203.4MB in the beginning and 245.4MB in the end (delta: 41.9MB). Free memory was 166.7MB in the beginning and 165.5MB in the end (delta: 1.1MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. * Witness Printer took 3.21ms. Allocated memory is still 245.4MB. Free memory is still 165.5MB. 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 10 terminating modules (4 trivial, 5 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 6 locations. One deterministic module has affine ranking function a and consists of 4 locations. One deterministic module has affine ranking function x and consists of 6 locations. One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function x and consists of 5 locations. One nondeterministic module has affine ranking function x and consists of 5 locations. 4 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.6s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 2.9s. Construction of modules took 0.2s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 99 StatesRemovedByMinimization, 6 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 [5, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 197 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 189 mSDsluCounter, 264 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 121 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 347 IncrementalHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 143 mSDtfsCounter, 347 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT3 conc0 concLT3 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax100 hnf100 lsp68 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq148 hnf96 smp91 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 53ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-17 08:00:32,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2024-11-17 08:00:32,605 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