./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/counting-bits-BK.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/counting-bits-BK.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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-dev-84cfde4 [2024-10-12 00:11:05,264 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 00:11:05,388 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-12 00:11:05,392 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 00:11:05,393 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 00:11:05,410 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 00:11:05,411 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 00:11:05,411 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 00:11:05,412 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 00:11:05,412 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 00:11:05,413 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 00:11:05,413 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 00:11:05,414 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 00:11:05,414 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-12 00:11:05,414 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-12 00:11:05,415 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-12 00:11:05,415 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-12 00:11:05,415 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-12 00:11:05,416 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-12 00:11:05,420 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 00:11:05,421 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-12 00:11:05,421 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 00:11:05,422 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 00:11:05,422 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-12 00:11:05,422 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-12 00:11:05,423 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-12 00:11:05,423 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 00:11:05,423 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-12 00:11:05,424 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 00:11:05,424 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-12 00:11:05,424 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 00:11:05,424 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 00:11:05,425 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 00:11:05,425 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 00:11:05,425 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 00:11:05,426 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-12 00:11:05,426 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd975cc2a01973f9ff4e653eb22c285998b2ad4afa4fc6d69590e228bd13187c [2024-10-12 00:11:05,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 00:11:05,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 00:11:05,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 00:11:05,757 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 00:11:05,758 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 00:11:05,760 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/counting-bits-BK.i [2024-10-12 00:11:07,431 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 00:11:07,642 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 00:11:07,643 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/counting-bits-BK.i [2024-10-12 00:11:07,650 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/7c4217052/ae57468deb7b46a58fb17ce90b1a16e3/FLAG9308c1900 [2024-10-12 00:11:07,669 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/7c4217052/ae57468deb7b46a58fb17ce90b1a16e3 [2024-10-12 00:11:07,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 00:11:07,673 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 00:11:07,675 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 00:11:07,675 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 00:11:07,680 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 00:11:07,681 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:11:07" (1/1) ... [2024-10-12 00:11:07,682 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75aa502b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:07, skipping insertion in model container [2024-10-12 00:11:07,682 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:11:07" (1/1) ... [2024-10-12 00:11:07,700 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 00:11:07,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:11:07,868 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 00:11:07,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:11:07,901 INFO L204 MainTranslator]: Completed translation [2024-10-12 00:11:07,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:07 WrapperNode [2024-10-12 00:11:07,902 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 00:11:07,904 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 00:11:07,904 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 00:11:07,904 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 00:11:07,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:07" (1/1) ... [2024-10-12 00:11:07,916 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:07" (1/1) ... [2024-10-12 00:11:07,934 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2024-10-12 00:11:07,935 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 00:11:07,936 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 00:11:07,936 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 00:11:07,936 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 00:11:07,947 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:07" (1/1) ... [2024-10-12 00:11:07,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:07" (1/1) ... [2024-10-12 00:11:07,949 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:07" (1/1) ... [2024-10-12 00:11:07,956 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-12 00:11:07,958 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:07" (1/1) ... [2024-10-12 00:11:07,959 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:07" (1/1) ... [2024-10-12 00:11:07,963 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:07" (1/1) ... [2024-10-12 00:11:07,968 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:07" (1/1) ... [2024-10-12 00:11:07,969 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:07" (1/1) ... [2024-10-12 00:11:07,970 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:07" (1/1) ... [2024-10-12 00:11:07,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 00:11:07,976 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 00:11:07,976 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 00:11:07,976 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 00:11:07,977 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:07" (1/1) ... [2024-10-12 00:11:07,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:08,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:08,021 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:08,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-12 00:11:08,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 00:11:08,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 00:11:08,217 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 00:11:08,255 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 00:11:08,366 INFO L? ?]: Removed 2 outVars from TransFormulas that were not future-live. [2024-10-12 00:11:08,366 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 00:11:08,378 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 00:11:08,378 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 00:11:08,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:11:08 BoogieIcfgContainer [2024-10-12 00:11:08,379 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 00:11:08,380 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-12 00:11:08,380 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-12 00:11:08,384 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-12 00:11:08,385 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:11:08,385 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.10 12:11:07" (1/3) ... [2024-10-12 00:11:08,386 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ec2d202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 12:11:08, skipping insertion in model container [2024-10-12 00:11:08,386 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:11:08,386 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:07" (2/3) ... [2024-10-12 00:11:08,387 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ec2d202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 12:11:08, skipping insertion in model container [2024-10-12 00:11:08,387 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:11:08,387 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:11:08" (3/3) ... [2024-10-12 00:11:08,389 INFO L332 chiAutomizerObserver]: Analyzing ICFG counting-bits-BK.i [2024-10-12 00:11:08,455 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-12 00:11:08,455 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-12 00:11:08,455 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-12 00:11:08,456 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-12 00:11:08,456 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-12 00:11:08,456 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-12 00:11:08,456 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-12 00:11:08,456 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-12 00:11:08,461 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) [2024-10-12 00:11:08,477 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-12 00:11:08,478 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:11:08,478 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:11:08,483 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-12 00:11:08,483 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-12 00:11:08,484 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-12 00:11:08,484 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) [2024-10-12 00:11:08,485 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-12 00:11:08,485 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:11:08,486 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:11:08,486 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-12 00:11:08,486 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-12 00:11:08,494 INFO L745 eck$LassoCheckResult]: Stem: 11#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~c~0 := 0;~z~0 := 0;~y~0 := 0; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~bitwise2#1, main_#t~post3#1;havoc main_#t~nondet0#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 14#L12true assume ~v~0 >= 0;~c~0 := 0; 5#L13-3true [2024-10-12 00:11:08,494 INFO L747 eck$LassoCheckResult]: Loop: 5#L13-3true assume !!(0 != ~v~0); 7#L14true assume 0 == ~v~0 || 0 == ~v~0 - 1;main_#t~bitwise2#1 := 0; 9#L14-5true ~v~0 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 10#L13-2true main_#t~post3#1 := ~c~0;~c~0 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 5#L13-3true [2024-10-12 00:11:08,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:08,501 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-10-12 00:11:08,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:08,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899716699] [2024-10-12 00:11:08,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:08,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:08,594 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:08,618 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:08,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:08,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1327014, now seen corresponding path program 1 times [2024-10-12 00:11:08,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:08,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670249345] [2024-10-12 00:11:08,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:08,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:08,634 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:08,640 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:08,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:08,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1805089735, now seen corresponding path program 1 times [2024-10-12 00:11:08,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:08,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972171562] [2024-10-12 00:11:08,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:08,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:08,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:08,653 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:08,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:08,662 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:08,763 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:11:08,764 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:11:08,765 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:11:08,765 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:11:08,765 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:11:08,765 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:08,765 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:11:08,765 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:11:08,765 INFO L132 ssoRankerPreferences]: Filename of dumped script: counting-bits-BK.i_Iteration1_Loop [2024-10-12 00:11:08,766 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:11:08,766 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:11:08,780 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:08,801 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:08,805 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:08,809 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:08,865 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:11:08,866 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:11:08,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:08,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:08,870 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:08,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-12 00:11:08,876 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:11:08,876 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:11:08,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-12 00:11:08,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:08,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:08,915 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:08,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-12 00:11:08,921 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:11:08,922 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:11:08,960 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:11:08,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-10-12 00:11:08,978 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:11:08,978 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:11:08,978 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:11:08,979 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:11:08,979 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:11:08,979 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:08,979 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:11:08,979 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:11:08,979 INFO L132 ssoRankerPreferences]: Filename of dumped script: counting-bits-BK.i_Iteration1_Loop [2024-10-12 00:11:08,979 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:11:08,979 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:11:08,981 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:08,990 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:08,994 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:08,999 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:09,073 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:11:09,084 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:11:09,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:09,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:09,091 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:09,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-12 00:11:09,098 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 [2024-10-12 00:11:09,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:11:09,122 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:11:09,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:11:09,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:11:09,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:11:09,129 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:11:09,129 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:11:09,135 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:11:09,147 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:11:09,147 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-12 00:11:09,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:09,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:09,169 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:09,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-12 00:11:09,177 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:11:09,177 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:11:09,178 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:11:09,178 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2024-10-12 00:11:09,192 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-12 00:11:09,195 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:11:09,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:09,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:09,264 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:11:09,264 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:11:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:09,305 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-12 00:11:09,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:11:09,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:11:09,513 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 [2024-10-12 00:11:09,521 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) [2024-10-12 00:11:09,679 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 55 states and 69 transitions. Complement of second has 10 states. [2024-10-12 00:11:09,691 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 [2024-10-12 00:11:09,695 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) [2024-10-12 00:11:09,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 38 transitions. [2024-10-12 00:11:09,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 38 transitions. Stem has 3 letters. Loop has 4 letters. [2024-10-12 00:11:09,702 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:09,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 38 transitions. Stem has 7 letters. Loop has 4 letters. [2024-10-12 00:11:09,703 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:09,703 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 38 transitions. Stem has 3 letters. Loop has 8 letters. [2024-10-12 00:11:09,703 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:09,705 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 69 transitions. [2024-10-12 00:11:09,711 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-12 00:11:09,716 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 20 states and 24 transitions. [2024-10-12 00:11:09,718 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-10-12 00:11:09,718 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2024-10-12 00:11:09,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 24 transitions. [2024-10-12 00:11:09,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:11:09,719 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 24 transitions. [2024-10-12 00:11:09,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 24 transitions. [2024-10-12 00:11:09,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2024-10-12 00:11:09,743 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) [2024-10-12 00:11:09,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2024-10-12 00:11:09,745 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 21 transitions. [2024-10-12 00:11:09,745 INFO L425 stractBuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2024-10-12 00:11:09,745 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-12 00:11:09,745 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2024-10-12 00:11:09,746 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-12 00:11:09,747 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:11:09,747 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:11:09,747 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-10-12 00:11:09,748 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-10-12 00:11:09,748 INFO L745 eck$LassoCheckResult]: Stem: 133#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~c~0 := 0;~z~0 := 0;~y~0 := 0; 134#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~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; 135#L12 assume ~v~0 >= 0;~c~0 := 0; 137#L13-3 assume !!(0 != ~v~0); 131#L14 assume !(0 == ~v~0 || 0 == ~v~0 - 1); 136#L14-2 assume !(~v~0 == ~v~0 - 1); 123#L14-4 [2024-10-12 00:11:09,748 INFO L747 eck$LassoCheckResult]: Loop: 123#L14-4 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; 124#L14-5 ~v~0 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 125#L13-2 main_#t~post3#1 := ~c~0;~c~0 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 128#L13-3 assume !!(0 != ~v~0); 138#L14 assume !(0 == ~v~0 || 0 == ~v~0 - 1); 139#L14-2 assume !(~v~0 == ~v~0 - 1); 123#L14-4 [2024-10-12 00:11:09,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:09,749 INFO L85 PathProgramCache]: Analyzing trace with hash 889512752, now seen corresponding path program 1 times [2024-10-12 00:11:09,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:09,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021100429] [2024-10-12 00:11:09,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:09,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:09,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:09,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:09,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:09,766 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:09,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:09,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1599462073, now seen corresponding path program 1 times [2024-10-12 00:11:09,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:09,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298569998] [2024-10-12 00:11:09,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:09,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:09,787 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:09,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:09,801 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:09,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:09,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1641455960, now seen corresponding path program 1 times [2024-10-12 00:11:09,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:09,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966813004] [2024-10-12 00:11:09,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:09,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:09,821 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:09,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:09,837 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:09,969 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:11:09,970 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:11:09,970 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:11:09,970 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:11:09,970 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:11:09,970 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:09,971 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:11:09,971 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:11:09,971 INFO L132 ssoRankerPreferences]: Filename of dumped script: counting-bits-BK.i_Iteration2_Loop [2024-10-12 00:11:09,971 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:11:09,971 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:11:09,972 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:09,991 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:09,994 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:09,997 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:10,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-10-12 00:11:10,202 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:11:10,203 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:11:10,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:10,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:10,205 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:10,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-12 00:11:10,209 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:11:10,209 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:11:10,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-12 00:11:10,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:10,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:10,245 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:10,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-12 00:11:10,259 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:11:10,259 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:11:10,290 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:11:10,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-12 00:11:10,297 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:11:10,297 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:11:10,298 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:11:10,298 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:11:10,298 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:11:10,298 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:10,298 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:11:10,298 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:11:10,298 INFO L132 ssoRankerPreferences]: Filename of dumped script: counting-bits-BK.i_Iteration2_Loop [2024-10-12 00:11:10,298 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:11:10,298 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:11:10,299 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:10,305 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:10,324 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:10,327 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:11:10,440 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:11:10,441 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:11:10,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:10,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:10,443 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:10,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-12 00:11:10,449 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 [2024-10-12 00:11:10,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:11:10,461 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:11:10,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:11:10,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:11:10,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:11:10,462 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:11:10,463 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:11:10,466 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:11:10,482 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-12 00:11:10,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:10,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:10,485 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:10,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-12 00:11:10,490 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 [2024-10-12 00:11:10,502 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:11:10,502 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:11:10,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:11:10,503 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-12 00:11:10,503 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:11:10,510 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-10-12 00:11:10,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:11:10,514 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:11:10,516 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:11:10,517 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-12 00:11:10,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:10,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:10,519 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:10,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-12 00:11:10,521 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:11:10,521 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:11:10,521 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:11:10,521 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 2*~v~0 + 4294967295 Supporting invariants [] [2024-10-12 00:11:10,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-12 00:11:10,538 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:11:10,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:10,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:10,565 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:11:10,566 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:11:10,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:11:10,580 WARN L253 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-12 00:11:10,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:11:10,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:11:10,848 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 [2024-10-12 00:11:10,848 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 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2024-10-12 00:11:10,911 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 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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. [2024-10-12 00:11:10,912 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 [2024-10-12 00:11:10,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2024-10-12 00:11:10,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 26 transitions. [2024-10-12 00:11:10,913 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 26 transitions. Stem has 6 letters. Loop has 6 letters. [2024-10-12 00:11:10,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:10,914 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 26 transitions. Stem has 12 letters. Loop has 6 letters. [2024-10-12 00:11:10,914 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:10,914 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 26 transitions. Stem has 6 letters. Loop has 12 letters. [2024-10-12 00:11:10,914 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:11:10,915 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2024-10-12 00:11:10,916 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-12 00:11:10,916 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2024-10-12 00:11:10,916 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-12 00:11:10,916 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-12 00:11:10,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-12 00:11:10,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:11:10,916 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:11:10,916 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:11:10,916 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:11:10,917 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-12 00:11:10,917 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-12 00:11:10,917 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-12 00:11:10,917 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-12 00:11:10,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 12:11:10 BoogieIcfgContainer [2024-10-12 00:11:10,925 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-12 00:11:10,925 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 00:11:10,925 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 00:11:10,926 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 00:11:10,926 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:11:08" (3/4) ... [2024-10-12 00:11:10,928 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-12 00:11:10,929 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 00:11:10,930 INFO L158 Benchmark]: Toolchain (without parser) took 3256.25ms. Allocated memory is still 174.1MB. Free memory was 106.5MB in the beginning and 80.0MB in the end (delta: 26.5MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2024-10-12 00:11:10,930 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 104.9MB. Free memory is still 69.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:11:10,930 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.13ms. Allocated memory is still 174.1MB. Free memory was 106.3MB in the beginning and 95.2MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-12 00:11:10,931 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.11ms. Allocated memory is still 174.1MB. Free memory was 95.2MB in the beginning and 93.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 00:11:10,931 INFO L158 Benchmark]: Boogie Preprocessor took 39.65ms. Allocated memory is still 174.1MB. Free memory was 93.7MB in the beginning and 92.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:11:10,931 INFO L158 Benchmark]: RCFGBuilder took 402.67ms. Allocated memory is still 174.1MB. Free memory was 92.1MB in the beginning and 140.7MB in the end (delta: -48.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-12 00:11:10,932 INFO L158 Benchmark]: BuchiAutomizer took 2545.16ms. Allocated memory is still 174.1MB. Free memory was 140.7MB in the beginning and 80.3MB in the end (delta: 60.4MB). Peak memory consumption was 62.8MB. Max. memory is 16.1GB. [2024-10-12 00:11:10,932 INFO L158 Benchmark]: Witness Printer took 3.55ms. Allocated memory is still 174.1MB. Free memory was 80.3MB in the beginning and 80.0MB in the end (delta: 333.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:11:10,934 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 104.9MB. Free memory is still 69.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.13ms. Allocated memory is still 174.1MB. Free memory was 106.3MB in the beginning and 95.2MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.11ms. Allocated memory is still 174.1MB. Free memory was 95.2MB in the beginning and 93.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.65ms. Allocated memory is still 174.1MB. Free memory was 93.7MB in the beginning and 92.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 402.67ms. Allocated memory is still 174.1MB. Free memory was 92.1MB in the beginning and 140.7MB in the end (delta: -48.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2545.16ms. Allocated memory is still 174.1MB. Free memory was 140.7MB in the beginning and 80.3MB in the end (delta: 60.4MB). Peak memory consumption was 62.8MB. Max. memory is 16.1GB. * Witness Printer took 3.55ms. Allocated memory is still 174.1MB. Free memory was 80.3MB in the beginning and 80.0MB in the end (delta: 333.3kB). 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 2.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 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, 31 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 24 mSDtfsCounter, 35 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital29 mio100 ax100 hnf100 lsp75 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq159 hnf93 smp100 dnf485 smp53 tf110 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 38ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 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! [2024-10-12 00:11:10,961 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-12 00:11:11,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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