./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-bwb/counting-bits-BK.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 023d838f 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/counting-bits-BK.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fd975cc2a01973f9ff4e653eb22c285998b2ad4afa4fc6d69590e228bd13187c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:31:03,793 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:31:03,879 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-10 22:31:03,885 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:31:03,887 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:31:03,888 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-10 22:31:03,918 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:31:03,919 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:31:03,919 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:31:03,919 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:31:03,920 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:31:03,920 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:31:03,922 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:31:03,923 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:31:03,925 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-10 22:31:03,926 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-10 22:31:03,927 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-10 22:31:03,927 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-10 22:31:03,927 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-10 22:31:03,928 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-10 22:31:03,928 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:31:03,928 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-10 22:31:03,929 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:31:03,929 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:31:03,929 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-10 22:31:03,929 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-10 22:31:03,930 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-10 22:31:03,930 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:31:03,930 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:31:03,930 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:31:03,931 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-10 22:31:03,931 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:31:03,932 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:31:03,932 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:31:03,933 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:31:03,933 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:31:03,933 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-10 22:31:03,933 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd975cc2a01973f9ff4e653eb22c285998b2ad4afa4fc6d69590e228bd13187c [2024-11-10 22:31:04,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:31:04,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:31:04,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:31:04,196 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:31:04,196 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:31:04,198 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-bwb/counting-bits-BK.i [2024-11-10 22:31:05,616 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:31:05,792 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:31:05,793 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/counting-bits-BK.i [2024-11-10 22:31:05,803 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ed361847/57c7ac9e2c3b44b5a28fd06e40c7fb2a/FLAG9d3e5e205 [2024-11-10 22:31:06,183 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ed361847/57c7ac9e2c3b44b5a28fd06e40c7fb2a [2024-11-10 22:31:06,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:31:06,187 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:31:06,192 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:31:06,192 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:31:06,197 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:31:06,198 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,199 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e6305bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06, skipping insertion in model container [2024-11-10 22:31:06,199 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,217 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:31:06,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:31:06,396 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:31:06,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:31:06,424 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:31:06,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06 WrapperNode [2024-11-10 22:31:06,425 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:31:06,427 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:31:06,427 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:31:06,427 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:31:06,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,439 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,455 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2024-11-10 22:31:06,456 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:31:06,456 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:31:06,456 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:31:06,457 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:31:06,467 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,468 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,474 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-10 22:31:06,475 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,475 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,477 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,477 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,478 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,480 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:31:06,481 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:31:06,481 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:31:06,481 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:31:06,485 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (1/1) ... [2024-11-10 22:31:06,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:06,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:06,526 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) [2024-11-10 22:31:06,534 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 [2024-11-10 22:31:06,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:31:06,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:31:06,623 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:31:06,625 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:31:06,720 INFO L? ?]: Removed 2 outVars from TransFormulas that were not future-live. [2024-11-10 22:31:06,721 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:31:06,745 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:31:06,745 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:31:06,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:31:06 BoogieIcfgContainer [2024-11-10 22:31:06,746 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:31:06,747 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-10 22:31:06,747 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-10 22:31:06,750 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-10 22:31:06,751 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 22:31:06,751 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 10:31:06" (1/3) ... [2024-11-10 22:31:06,753 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@788d1bca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 10:31:06, skipping insertion in model container [2024-11-10 22:31:06,753 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 22:31:06,753 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:31:06" (2/3) ... [2024-11-10 22:31:06,754 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@788d1bca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 10:31:06, skipping insertion in model container [2024-11-10 22:31:06,754 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 22:31:06,754 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:31:06" (3/3) ... [2024-11-10 22:31:06,756 INFO L332 chiAutomizerObserver]: Analyzing ICFG counting-bits-BK.i [2024-11-10 22:31:06,806 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-10 22:31:06,807 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-10 22:31:06,807 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-10 22:31:06,807 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-10 22:31:06,807 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-10 22:31:06,807 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-10 22:31:06,807 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-10 22:31:06,808 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-10 22:31:06,812 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 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) [2024-11-10 22:31:06,827 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-10 22:31:06,828 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:31:06,828 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:31:06,833 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-10 22:31:06,833 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-10 22:31:06,834 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-10 22:31:06,835 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 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) [2024-11-10 22:31:06,836 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-10 22:31:06,836 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:31:06,837 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:31:06,837 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-10 22:31:06,837 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-10 22:31:06,844 INFO L745 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~c~0 := 0;~z~0 := 0;~y~0 := 0; 10#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~bitwise2#1, main_#t~post3#1;havoc main_#t~nondet0#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 14#L12true assume ~v~0 >= 0;~c~0 := 0; 9#L13true [2024-11-10 22:31:06,845 INFO L747 eck$LassoCheckResult]: Loop: 9#L13true assume true; 8#L13-1true assume !!(0 != ~v~0); 5#L14-4true assume 0 == ~v~0 || 0 == ~v~0 - 1;main_#t~bitwise2#1 := 0; 6#L14true ~v~0 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_#t~post3#1 := ~c~0;~c~0 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 9#L13true [2024-11-10 22:31:06,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:06,854 INFO L85 PathProgramCache]: Analyzing trace with hash 47631, now seen corresponding path program 1 times [2024-11-10 22:31:06,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:06,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28207379] [2024-11-10 22:31:06,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:06,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:06,962 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:31:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:06,987 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:31:06,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:06,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1322495, now seen corresponding path program 1 times [2024-11-10 22:31:06,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:06,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266295614] [2024-11-10 22:31:06,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:06,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:07,008 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:31:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:07,020 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:31:07,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:07,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1038954765, now seen corresponding path program 1 times [2024-11-10 22:31:07,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:07,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805310198] [2024-11-10 22:31:07,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:07,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:07,032 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:31:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:07,044 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:31:07,154 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:31:07,154 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:31:07,154 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:31:07,154 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:31:07,154 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-10 22:31:07,155 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:07,155 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:31:07,155 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:31:07,155 INFO L132 ssoRankerPreferences]: Filename of dumped script: counting-bits-BK.i_Iteration1_Loop [2024-11-10 22:31:07,155 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:31:07,156 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:31:07,166 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:07,176 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:07,188 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:07,196 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:07,249 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:31:07,249 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-10 22:31:07,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:07,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:07,253 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) [2024-11-10 22:31:07,268 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 [2024-11-10 22:31:07,271 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:31:07,271 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:07,287 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 22:31:07,288 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 22:31:07,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-11-10 22:31:07,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:07,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:07,302 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) [2024-11-10 22:31:07,303 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 [2024-11-10 22:31:07,305 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:31:07,305 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:07,331 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 [2024-11-10 22:31:07,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:07,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:07,337 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) [2024-11-10 22:31:07,338 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 [2024-11-10 22:31:07,340 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 22:31:07,340 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:07,357 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-10 22:31:07,383 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 [2024-11-10 22:31:07,384 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:31:07,384 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:31:07,384 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:31:07,384 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:31:07,384 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-10 22:31:07,384 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:07,398 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:31:07,399 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:31:07,399 INFO L132 ssoRankerPreferences]: Filename of dumped script: counting-bits-BK.i_Iteration1_Loop [2024-11-10 22:31:07,399 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:31:07,399 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:31:07,401 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:07,404 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:07,410 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:07,416 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:07,462 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:31:07,467 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-10 22:31:07,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:07,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:07,470 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) [2024-11-10 22:31:07,471 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 [2024-11-10 22:31:07,475 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 [2024-11-10 22:31:07,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:31:07,489 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:31:07,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:31:07,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:31:07,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:31:07,492 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:31:07,492 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:31:07,494 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 22:31:07,508 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 [2024-11-10 22:31:07,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:07,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:07,532 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) [2024-11-10 22:31:07,533 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 [2024-11-10 22:31:07,534 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 [2024-11-10 22:31:07,544 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:31:07,545 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:31:07,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:31:07,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:31:07,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:31:07,547 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:31:07,547 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:31:07,554 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-10 22:31:07,557 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-10 22:31:07,557 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-10 22:31:07,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:07,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:07,560 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) [2024-11-10 22:31:07,562 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 [2024-11-10 22:31:07,564 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-10 22:31:07,564 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-10 22:31:07,564 INFO L474 LassoAnalysis]: Proved termination. [2024-11-10 22:31:07,565 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2024-11-10 22:31:07,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-10 22:31:07,578 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-10 22:31:07,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:07,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 22:31:07,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:31:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:07,634 WARN L253 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 22:31:07,635 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:31:07,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:31:07,742 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 [2024-11-10 22:31:07,745 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 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) 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) [2024-11-10 22:31:07,843 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 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). 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 53 states and 64 transitions. Complement of second has 10 states. [2024-11-10 22:31:07,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-10 22:31:07,852 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) [2024-11-10 22:31:07,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 35 transitions. [2024-11-10 22:31:07,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 35 transitions. Stem has 3 letters. Loop has 4 letters. [2024-11-10 22:31:07,855 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:07,855 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 35 transitions. Stem has 7 letters. Loop has 4 letters. [2024-11-10 22:31:07,855 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:07,855 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 35 transitions. Stem has 3 letters. Loop has 8 letters. [2024-11-10 22:31:07,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:07,856 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 64 transitions. [2024-11-10 22:31:07,859 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-10 22:31:07,861 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 19 states and 23 transitions. [2024-11-10 22:31:07,862 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-11-10 22:31:07,862 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2024-11-10 22:31:07,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 23 transitions. [2024-11-10 22:31:07,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-10 22:31:07,863 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 23 transitions. [2024-11-10 22:31:07,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 23 transitions. [2024-11-10 22:31:07,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2024-11-10 22:31:07,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 16 states have internal predecessors, (21), 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) [2024-11-10 22:31:07,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2024-11-10 22:31:07,889 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 21 transitions. [2024-11-10 22:31:07,890 INFO L425 stractBuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2024-11-10 22:31:07,890 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-10 22:31:07,890 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2024-11-10 22:31:07,891 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-10 22:31:07,891 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:31:07,891 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:31:07,891 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:31:07,892 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-10 22:31:07,892 INFO L745 eck$LassoCheckResult]: Stem: 127#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~c~0 := 0;~z~0 := 0;~y~0 := 0; 128#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~bitwise2#1, main_#t~post3#1;havoc main_#t~nondet0#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 129#L12 assume ~v~0 >= 0;~c~0 := 0; 135#L13 assume true; 126#L13-1 assume !!(0 != ~v~0); 130#L14-4 assume !(0 == ~v~0 || 0 == ~v~0 - 1); 131#L14-3 assume !(~v~0 == ~v~0 - 1); 134#L14-2 [2024-11-10 22:31:07,892 INFO L747 eck$LassoCheckResult]: Loop: 134#L14-2 havoc main_#t~bitwise2#1;assume (((((~v~0 < 0 && ~v~0 - 1 >= 0) || main_#t~bitwise2#1 <= ~v~0) && ((~v~0 >= 0 && ~v~0 - 1 < 0) || main_#t~bitwise2#1 <= ~v~0 - 1)) && ((~v~0 < 0 && ~v~0 - 1 < 0) || main_#t~bitwise2#1 >= 0)) && ((~v~0 >= 0 && ~v~0 - 1 >= 0) || main_#t~bitwise2#1 > ~v~0 + (~v~0 - 1))) && main_#t~bitwise2#1 >= -2147483648; 133#L14 ~v~0 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1;main_#t~post3#1 := ~c~0;~c~0 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 124#L13 assume true; 120#L13-1 assume !!(0 != ~v~0); 121#L14-4 assume !(0 == ~v~0 || 0 == ~v~0 - 1); 136#L14-3 assume !(~v~0 == ~v~0 - 1); 134#L14-2 [2024-11-10 22:31:07,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:07,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1038954925, now seen corresponding path program 1 times [2024-11-10 22:31:07,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:07,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002004663] [2024-11-10 22:31:07,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:07,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:07,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:07,900 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:31:07,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:07,905 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:31:07,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:07,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1464179919, now seen corresponding path program 1 times [2024-11-10 22:31:07,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:07,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827337919] [2024-11-10 22:31:07,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:07,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:07,921 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:31:07,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:07,931 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:31:07,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:07,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1266277755, now seen corresponding path program 1 times [2024-11-10 22:31:07,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:31:07,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920099275] [2024-11-10 22:31:07,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:31:07,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:31:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:07,954 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:31:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:31:07,972 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:31:08,142 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:31:08,142 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:31:08,142 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:31:08,142 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:31:08,142 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-10 22:31:08,142 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:08,142 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:31:08,142 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:31:08,142 INFO L132 ssoRankerPreferences]: Filename of dumped script: counting-bits-BK.i_Iteration2_Loop [2024-11-10 22:31:08,142 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:31:08,143 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:31:08,144 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:08,146 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:08,163 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:08,165 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:08,309 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:31:08,309 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-10 22:31:08,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:08,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:08,312 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) [2024-11-10 22:31:08,315 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 [2024-11-10 22:31:08,316 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:31:08,316 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:08,331 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 22:31:08,331 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise2#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 22:31:08,342 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 [2024-11-10 22:31:08,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:08,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:08,344 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) [2024-11-10 22:31:08,345 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 [2024-11-10 22:31:08,346 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:31:08,346 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:08,368 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 [2024-11-10 22:31:08,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:08,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:08,375 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) [2024-11-10 22:31:08,376 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 [2024-11-10 22:31:08,377 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 22:31:08,378 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:31:08,405 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-10 22:31:08,412 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 [2024-11-10 22:31:08,412 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:31:08,412 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:31:08,413 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:31:08,413 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:31:08,413 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-10 22:31:08,413 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:08,413 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:31:08,413 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:31:08,417 INFO L132 ssoRankerPreferences]: Filename of dumped script: counting-bits-BK.i_Iteration2_Loop [2024-11-10 22:31:08,418 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:31:08,418 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:31:08,419 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:08,423 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:08,426 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:08,445 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:31:08,576 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:31:08,577 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-10 22:31:08,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:08,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:08,579 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) [2024-11-10 22:31:08,581 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 [2024-11-10 22:31:08,582 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 [2024-11-10 22:31:08,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:31:08,596 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:31:08,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:31:08,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:31:08,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:31:08,597 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:31:08,597 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:31:08,602 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 22:31:08,615 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 [2024-11-10 22:31:08,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:08,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:08,618 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) [2024-11-10 22:31:08,619 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 [2024-11-10 22:31:08,621 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 [2024-11-10 22:31:08,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:31:08,631 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:31:08,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:31:08,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:31:08,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:31:08,632 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:31:08,632 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:31:08,634 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 22:31:08,645 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 [2024-11-10 22:31:08,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:08,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:08,647 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) [2024-11-10 22:31:08,648 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 [2024-11-10 22:31:08,649 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 [2024-11-10 22:31:08,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:31:08,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:31:08,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:31:08,659 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-10 22:31:08,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:31:08,661 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-10 22:31:08,661 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:31:08,667 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-10 22:31:08,670 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-10 22:31:08,670 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-10 22:31:08,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:31:08,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:31:08,673 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) [2024-11-10 22:31:08,674 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 [2024-11-10 22:31:08,675 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-10 22:31:08,675 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-10 22:31:08,675 INFO L474 LassoAnalysis]: Proved termination. [2024-11-10 22:31:08,675 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 2*~v~0 + 4294967295 Supporting invariants [] [2024-11-10 22:31:08,691 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-10 22:31:08,693 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-10 22:31:08,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:31:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:08,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 22:31:08,726 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:31:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:31:08,747 WARN L253 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-10 22:31:08,748 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:31:09,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:31:09,085 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2024-11-10 22:31:09,085 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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) [2024-11-10 22:31:09,151 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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 30 states and 38 transitions. Complement of second has 9 states. [2024-11-10 22:31:09,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-10 22:31:09,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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) [2024-11-10 22:31:09,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 26 transitions. [2024-11-10 22:31:09,155 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 26 transitions. Stem has 7 letters. Loop has 6 letters. [2024-11-10 22:31:09,155 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:09,155 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 26 transitions. Stem has 13 letters. Loop has 6 letters. [2024-11-10 22:31:09,155 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:09,155 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 26 transitions. Stem has 7 letters. Loop has 12 letters. [2024-11-10 22:31:09,156 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:31:09,156 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2024-11-10 22:31:09,159 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-10 22:31:09,159 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2024-11-10 22:31:09,159 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-10 22:31:09,159 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-10 22:31:09,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-10 22:31:09,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 22:31:09,160 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 22:31:09,160 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 22:31:09,160 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 22:31:09,160 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-10 22:31:09,160 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-10 22:31:09,161 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-10 22:31:09,161 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-10 22:31:09,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 10:31:09 BoogieIcfgContainer [2024-11-10 22:31:09,169 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-10 22:31:09,170 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 22:31:09,170 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 22:31:09,170 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 22:31:09,171 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:31:06" (3/4) ... [2024-11-10 22:31:09,173 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-10 22:31:09,174 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 22:31:09,175 INFO L158 Benchmark]: Toolchain (without parser) took 2987.71ms. Allocated memory was 176.2MB in the beginning and 245.4MB in the end (delta: 69.2MB). Free memory was 120.4MB in the beginning and 99.8MB in the end (delta: 20.7MB). Peak memory consumption was 93.0MB. Max. memory is 16.1GB. [2024-11-10 22:31:09,175 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 176.2MB. Free memory is still 137.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:31:09,176 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.39ms. Allocated memory is still 176.2MB. Free memory was 120.4MB in the beginning and 108.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-10 22:31:09,176 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.31ms. Allocated memory is still 176.2MB. Free memory was 108.3MB in the beginning and 106.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 22:31:09,176 INFO L158 Benchmark]: Boogie Preprocessor took 23.73ms. Allocated memory is still 176.2MB. Free memory was 106.8MB in the beginning and 105.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:31:09,177 INFO L158 Benchmark]: IcfgBuilder took 265.29ms. Allocated memory is still 176.2MB. Free memory was 105.7MB in the beginning and 95.3MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-10 22:31:09,177 INFO L158 Benchmark]: BuchiAutomizer took 2422.59ms. Allocated memory was 176.2MB in the beginning and 245.4MB in the end (delta: 69.2MB). Free memory was 95.2MB in the beginning and 99.8MB in the end (delta: -4.5MB). Peak memory consumption was 67.8MB. Max. memory is 16.1GB. [2024-11-10 22:31:09,177 INFO L158 Benchmark]: Witness Printer took 4.49ms. Allocated memory is still 245.4MB. Free memory is still 99.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:31:09,180 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 176.2MB. Free memory is still 137.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 233.39ms. Allocated memory is still 176.2MB. Free memory was 120.4MB in the beginning and 108.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.31ms. Allocated memory is still 176.2MB. Free memory was 108.3MB in the beginning and 106.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.73ms. Allocated memory is still 176.2MB. Free memory was 106.8MB in the beginning and 105.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 265.29ms. Allocated memory is still 176.2MB. Free memory was 105.7MB in the beginning and 95.3MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2422.59ms. Allocated memory was 176.2MB in the beginning and 245.4MB in the end (delta: 69.2MB). Free memory was 95.2MB in the beginning and 99.8MB in the end (delta: -4.5MB). Peak memory consumption was 67.8MB. Max. memory is 16.1GB. * Witness Printer took 4.49ms. Allocated memory is still 245.4MB. Free memory is still 99.8MB. 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 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function v and consists of 6 locations. One deterministic module has affine ranking function (((long) 2 * v) + 4294967295) and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 24 mSDtfsCounter, 34 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital30 mio100 ax100 hnf100 lsp75 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq159 hnf93 smp100 dnf484 smp53 tf110 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 29ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-10 22:31:09,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-10 22:31:09,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-10 22:31:09,607 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