./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/c.08.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/c.08.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e4b41eab3134232576005c452e063ce9699dbf2a52c4538827c4a32ddc3b6274 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 22:12:08,135 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 22:12:08,185 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-20 22:12:08,189 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 22:12:08,190 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 22:12:08,207 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 22:12:08,208 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 22:12:08,208 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 22:12:08,208 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 22:12:08,209 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 22:12:08,209 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 22:12:08,209 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 22:12:08,210 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 22:12:08,210 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-20 22:12:08,210 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-20 22:12:08,210 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-20 22:12:08,211 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-20 22:12:08,211 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-20 22:12:08,211 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-20 22:12:08,211 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 22:12:08,212 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-20 22:12:08,212 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 22:12:08,212 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 22:12:08,212 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-20 22:12:08,213 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-20 22:12:08,213 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-20 22:12:08,213 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 22:12:08,213 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 22:12:08,214 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 22:12:08,214 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-20 22:12:08,214 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 22:12:08,214 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 22:12:08,214 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 22:12:08,215 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 22:12:08,215 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 22:12:08,218 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-20 22:12:08,219 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4b41eab3134232576005c452e063ce9699dbf2a52c4538827c4a32ddc3b6274 [2024-11-20 22:12:08,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 22:12:08,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 22:12:08,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 22:12:08,425 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 22:12:08,425 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 22:12:08,426 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/c.08.c [2024-11-20 22:12:09,547 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 22:12:09,687 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 22:12:09,687 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/c.08.c [2024-11-20 22:12:09,692 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fb90de45/6c14bca06c09406998a3cf873dd363ed/FLAG35b5e5ba4 [2024-11-20 22:12:10,127 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fb90de45/6c14bca06c09406998a3cf873dd363ed [2024-11-20 22:12:10,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 22:12:10,130 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 22:12:10,131 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 22:12:10,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 22:12:10,139 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 22:12:10,140 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:12:10" (1/1) ... [2024-11-20 22:12:10,144 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cf2e66b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:10, skipping insertion in model container [2024-11-20 22:12:10,144 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:12:10" (1/1) ... [2024-11-20 22:12:10,159 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 22:12:10,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:12:10,310 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 22:12:10,320 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:12:10,334 INFO L204 MainTranslator]: Completed translation [2024-11-20 22:12:10,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:10 WrapperNode [2024-11-20 22:12:10,335 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 22:12:10,336 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 22:12:10,336 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 22:12:10,336 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 22:12:10,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:10" (1/1) ... [2024-11-20 22:12:10,345 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:10" (1/1) ... [2024-11-20 22:12:10,356 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2024-11-20 22:12:10,356 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 22:12:10,357 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 22:12:10,357 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 22:12:10,357 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 22:12:10,366 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:10" (1/1) ... [2024-11-20 22:12:10,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:10" (1/1) ... [2024-11-20 22:12:10,367 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:10" (1/1) ... [2024-11-20 22:12:10,371 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-20 22:12:10,371 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:10" (1/1) ... [2024-11-20 22:12:10,372 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:10" (1/1) ... [2024-11-20 22:12:10,373 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:10" (1/1) ... [2024-11-20 22:12:10,377 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:10" (1/1) ... [2024-11-20 22:12:10,377 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:10" (1/1) ... [2024-11-20 22:12:10,378 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:10" (1/1) ... [2024-11-20 22:12:10,379 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 22:12:10,380 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 22:12:10,381 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 22:12:10,381 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 22:12:10,381 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:10" (1/1) ... [2024-11-20 22:12:10,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:10,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:12:10,416 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) [2024-11-20 22:12:10,419 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 [2024-11-20 22:12:10,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 22:12:10,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 22:12:10,526 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 22:12:10,529 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 22:12:10,570 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-20 22:12:10,570 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 22:12:10,587 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 22:12:10,587 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-20 22:12:10,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:12:10 BoogieIcfgContainer [2024-11-20 22:12:10,588 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 22:12:10,588 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-20 22:12:10,588 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-20 22:12:10,595 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-20 22:12:10,599 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:12:10,599 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 10:12:10" (1/3) ... [2024-11-20 22:12:10,600 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5b23b0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:12:10, skipping insertion in model container [2024-11-20 22:12:10,600 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:12:10,600 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:12:10" (2/3) ... [2024-11-20 22:12:10,603 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5b23b0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:12:10, skipping insertion in model container [2024-11-20 22:12:10,603 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:12:10,603 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:12:10" (3/3) ... [2024-11-20 22:12:10,604 INFO L332 chiAutomizerObserver]: Analyzing ICFG c.08.c [2024-11-20 22:12:10,658 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-20 22:12:10,658 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-20 22:12:10,658 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-20 22:12:10,658 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-20 22:12:10,658 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-20 22:12:10,658 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-20 22:12:10,658 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-20 22:12:10,659 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-20 22:12:10,661 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2024-11-20 22:12:10,671 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-20 22:12:10,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:12:10,672 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:12:10,675 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-20 22:12:10,675 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-20 22:12:10,675 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-20 22:12:10,675 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2024-11-20 22:12:10,676 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-20 22:12:10,676 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:12:10,676 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:12:10,676 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-20 22:12:10,676 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-20 22:12:10,681 INFO L745 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~i~0#1, main_~j~0#1;havoc main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 4#L10-2true [2024-11-20 22:12:10,681 INFO L747 eck$LassoCheckResult]: Loop: 4#L10-2true assume !!(main_~i~0#1 >= 0);main_~j~0#1 := 0; 2#L12-2true assume !(main_~j~0#1 <= main_~i~0#1 - 1); 5#L12-3true main_~i~0#1 := main_~i~0#1 - 1; 4#L10-2true [2024-11-20 22:12:10,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:12:10,685 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-20 22:12:10,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:12:10,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143184993] [2024-11-20 22:12:10,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:12:10,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:12:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:12:10,744 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:12:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:12:10,757 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:12:10,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:12:10,759 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2024-11-20 22:12:10,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:12:10,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756872473] [2024-11-20 22:12:10,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:12:10,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:12:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:12:10,768 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:12:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:12:10,772 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:12:10,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:12:10,773 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times [2024-11-20 22:12:10,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:12:10,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314189584] [2024-11-20 22:12:10,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:12:10,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:12:10,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:12:10,780 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:12:10,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:12:10,784 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:12:10,850 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:12:10,851 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:12:10,852 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:12:10,852 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:12:10,852 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-20 22:12:10,852 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:10,852 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:12:10,852 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:12:10,852 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.08.c_Iteration1_Loop [2024-11-20 22:12:10,852 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:12:10,853 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:12:10,867 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:12:10,880 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:12:10,884 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:12:10,888 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:12:10,943 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:12:10,944 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-20 22:12:10,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:10,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:12:10,949 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) [2024-11-20 22:12:10,951 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 [2024-11-20 22:12:10,952 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:12:10,952 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:12:10,973 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:12:10,973 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:12:10,979 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-20 22:12:10,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:10,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:12:10,980 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) [2024-11-20 22:12:10,981 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 [2024-11-20 22:12:10,982 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:12:10,982 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:12:11,000 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:12:11,000 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:12:11,006 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 [2024-11-20 22:12:11,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:11,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:12:11,007 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) [2024-11-20 22:12:11,008 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 [2024-11-20 22:12:11,012 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:12:11,012 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:12:11,023 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:12:11,023 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=0} Honda state: {ULTIMATE.start_main_~j~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:12:11,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-20 22:12:11,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:11,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:12:11,031 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) [2024-11-20 22:12:11,032 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 [2024-11-20 22:12:11,033 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:12:11,033 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:12:11,049 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 [2024-11-20 22:12:11,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:11,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:12:11,052 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) [2024-11-20 22:12:11,053 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 [2024-11-20 22:12:11,054 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-20 22:12:11,054 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:12:11,068 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-20 22:12:11,075 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-20 22:12:11,075 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:12:11,075 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:12:11,075 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:12:11,076 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:12:11,076 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-20 22:12:11,076 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:11,076 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:12:11,076 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:12:11,076 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.08.c_Iteration1_Loop [2024-11-20 22:12:11,076 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:12:11,076 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:12:11,077 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:12:11,084 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:12:11,087 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:12:11,093 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:12:11,135 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:12:11,139 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-20 22:12:11,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:11,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:12:11,141 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) [2024-11-20 22:12:11,142 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 [2024-11-20 22:12:11,147 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 [2024-11-20 22:12:11,157 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:12:11,158 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:12:11,158 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:12:11,158 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:12:11,164 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-20 22:12:11,164 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-20 22:12:11,169 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-20 22:12:11,175 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-20 22:12:11,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:11,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:12:11,178 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) [2024-11-20 22:12:11,179 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 [2024-11-20 22:12:11,180 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 [2024-11-20 22:12:11,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:12:11,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:12:11,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:12:11,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:12:11,196 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-20 22:12:11,196 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-20 22:12:11,201 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-20 22:12:11,206 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 [2024-11-20 22:12:11,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:11,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:12:11,208 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) [2024-11-20 22:12:11,210 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 [2024-11-20 22:12:11,211 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 [2024-11-20 22:12:11,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:12:11,222 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:12:11,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:12:11,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:12:11,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:12:11,225 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-20 22:12:11,225 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:12:11,232 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-20 22:12:11,235 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-20 22:12:11,235 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-20 22:12:11,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:11,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:12:11,237 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) [2024-11-20 22:12:11,238 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 [2024-11-20 22:12:11,239 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-20 22:12:11,239 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-20 22:12:11,239 INFO L474 LassoAnalysis]: Proved termination. [2024-11-20 22:12:11,239 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2024-11-20 22:12:11,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-20 22:12:11,248 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-20 22:12:11,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:12:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:12:11,279 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 22:12:11,280 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:12:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:12:11,289 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:12:11,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:12:11,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:12:11,344 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-20 22:12:11,347 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:12:11,393 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 31 transitions. Complement of second has 6 states. [2024-11-20 22:12:11,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-20 22:12:11,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:12:11,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2024-11-20 22:12:11,401 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 2 letters. Loop has 3 letters. [2024-11-20 22:12:11,402 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:12:11,402 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 3 letters. [2024-11-20 22:12:11,402 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:12:11,402 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 2 letters. Loop has 6 letters. [2024-11-20 22:12:11,402 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:12:11,403 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 31 transitions. [2024-11-20 22:12:11,404 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-20 22:12:11,406 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions. [2024-11-20 22:12:11,407 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2024-11-20 22:12:11,407 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2024-11-20 22:12:11,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2024-11-20 22:12:11,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-20 22:12:11,409 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-11-20 22:12:11,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2024-11-20 22:12:11,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2024-11-20 22:12:11,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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) [2024-11-20 22:12:11,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2024-11-20 22:12:11,426 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2024-11-20 22:12:11,427 INFO L425 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2024-11-20 22:12:11,427 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-20 22:12:11,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2024-11-20 22:12:11,428 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-20 22:12:11,428 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:12:11,428 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:12:11,428 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-20 22:12:11,428 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-20 22:12:11,428 INFO L745 eck$LassoCheckResult]: Stem: 73#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 74#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_~c~0#1, main_~i~0#1, main_~j~0#1;havoc main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 71#L10-2 assume !!(main_~i~0#1 >= 0);main_~j~0#1 := 0; 68#L12-2 [2024-11-20 22:12:11,428 INFO L747 eck$LassoCheckResult]: Loop: 68#L12-2 assume !!(main_~j~0#1 <= main_~i~0#1 - 1);main_~j~0#1 := 1 + main_~j~0#1; 68#L12-2 [2024-11-20 22:12:11,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:12:11,430 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-11-20 22:12:11,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:12:11,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628074377] [2024-11-20 22:12:11,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:12:11,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:12:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:12:11,435 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:12:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:12:11,438 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:12:11,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:12:11,438 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2024-11-20 22:12:11,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:12:11,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863683814] [2024-11-20 22:12:11,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:12:11,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:12:11,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:12:11,444 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:12:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:12:11,446 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:12:11,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:12:11,448 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2024-11-20 22:12:11,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:12:11,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072522168] [2024-11-20 22:12:11,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:12:11,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:12:11,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:12:11,453 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:12:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:12:11,458 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:12:11,472 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:12:11,472 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:12:11,472 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:12:11,472 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:12:11,472 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-20 22:12:11,472 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:11,472 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:12:11,472 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:12:11,472 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.08.c_Iteration2_Loop [2024-11-20 22:12:11,472 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:12:11,472 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:12:11,473 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:12:11,479 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:12:11,481 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:12:11,516 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:12:11,516 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-20 22:12:11,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:11,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:12:11,518 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) [2024-11-20 22:12:11,519 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 [2024-11-20 22:12:11,520 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:12:11,520 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:12:11,539 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:12:11,539 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:12:11,545 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-20 22:12:11,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:11,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:12:11,548 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) [2024-11-20 22:12:11,550 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 [2024-11-20 22:12:11,551 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:12:11,551 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:12:11,569 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:12:11,569 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:12:11,576 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 [2024-11-20 22:12:11,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:11,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:12:11,578 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) [2024-11-20 22:12:11,579 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 [2024-11-20 22:12:11,581 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:12:11,581 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:12:11,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-11-20 22:12:11,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:11,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:12:11,600 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) [2024-11-20 22:12:11,600 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 [2024-11-20 22:12:11,602 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-20 22:12:11,603 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:12:11,669 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-20 22:12:11,676 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 [2024-11-20 22:12:11,676 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:12:11,676 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:12:11,676 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:12:11,676 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:12:11,676 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-20 22:12:11,676 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:11,677 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:12:11,677 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:12:11,677 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.08.c_Iteration2_Loop [2024-11-20 22:12:11,677 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:12:11,677 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:12:11,682 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:12:11,685 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:12:11,692 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:12:11,729 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:12:11,729 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-20 22:12:11,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:11,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:12:11,732 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:12:11,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-20 22:12:11,736 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 [2024-11-20 22:12:11,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:12:11,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:12:11,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:12:11,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:12:11,754 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-20 22:12:11,755 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-20 22:12:11,759 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-20 22:12:11,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-20 22:12:11,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:11,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:12:11,791 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:12:11,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-20 22:12:11,792 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 [2024-11-20 22:12:11,802 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:12:11,803 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:12:11,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:12:11,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:12:11,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:12:11,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-20 22:12:11,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:12:11,809 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-20 22:12:11,814 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-20 22:12:11,814 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-20 22:12:11,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:11,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:12:11,819 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:12:11,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-20 22:12:11,821 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-20 22:12:11,821 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-20 22:12:11,822 INFO L474 LassoAnalysis]: Proved termination. [2024-11-20 22:12:11,822 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~i~0#1 - 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2024-11-20 22:12:11,828 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-20 22:12:11,831 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-20 22:12:11,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:12:11,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:12:11,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 22:12:11,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:12:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:12:11,858 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:12:11,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:12:11,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:12:11,859 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-20 22:12:11,859 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2024-11-20 22:12:11,867 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 10 states and 14 transitions. Complement of second has 3 states. [2024-11-20 22:12:11,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-11-20 22:12:11,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2024-11-20 22:12:11,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2024-11-20 22:12:11,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 3 letters. Loop has 1 letters. [2024-11-20 22:12:11,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:12:11,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 4 letters. Loop has 1 letters. [2024-11-20 22:12:11,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:12:11,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 3 letters. Loop has 2 letters. [2024-11-20 22:12:11,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:12:11,868 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 14 transitions. [2024-11-20 22:12:11,869 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-20 22:12:11,869 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 8 states and 11 transitions. [2024-11-20 22:12:11,869 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2024-11-20 22:12:11,869 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2024-11-20 22:12:11,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2024-11-20 22:12:11,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-20 22:12:11,869 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-11-20 22:12:11,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2024-11-20 22:12:11,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2024-11-20 22:12:11,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:12:11,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2024-11-20 22:12:11,870 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2024-11-20 22:12:11,870 INFO L425 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2024-11-20 22:12:11,870 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-20 22:12:11,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2024-11-20 22:12:11,871 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-20 22:12:11,871 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:12:11,871 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:12:11,873 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2024-11-20 22:12:11,873 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-20 22:12:11,874 INFO L745 eck$LassoCheckResult]: Stem: 118#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 119#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~i~0#1, main_~j~0#1;havoc main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 116#L10-2 assume !!(main_~i~0#1 >= 0);main_~j~0#1 := 0; 114#L12-2 assume !(main_~j~0#1 <= main_~i~0#1 - 1); 115#L12-3 main_~i~0#1 := main_~i~0#1 - 1; 117#L10-2 assume !!(main_~i~0#1 >= 0);main_~j~0#1 := 0; 113#L12-2 [2024-11-20 22:12:11,874 INFO L747 eck$LassoCheckResult]: Loop: 113#L12-2 assume !!(main_~j~0#1 <= main_~i~0#1 - 1);main_~j~0#1 := 1 + main_~j~0#1; 113#L12-2 [2024-11-20 22:12:11,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:12:11,874 INFO L85 PathProgramCache]: Analyzing trace with hash 889696477, now seen corresponding path program 2 times [2024-11-20 22:12:11,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:12:11,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446307670] [2024-11-20 22:12:11,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:12:11,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:12:11,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:12:11,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-20 22:12:11,927 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 [2024-11-20 22:12:11,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:12:11,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:12:11,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446307670] [2024-11-20 22:12:11,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446307670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:12:11,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:12:11,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 22:12:11,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473437004] [2024-11-20 22:12:11,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:12:11,967 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-20 22:12:11,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:12:11,968 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times [2024-11-20 22:12:11,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:12:11,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880282850] [2024-11-20 22:12:11,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:12:11,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:12:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:12:11,971 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:12:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:12:11,973 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:12:11,988 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:12:11,988 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:12:11,988 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:12:11,988 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:12:11,988 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-20 22:12:11,988 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:11,988 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:12:11,988 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:12:11,988 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.08.c_Iteration3_Loop [2024-11-20 22:12:11,988 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:12:11,989 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:12:11,989 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:12:11,991 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:12:11,996 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:12:12,022 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:12:12,022 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-20 22:12:12,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:12,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:12:12,024 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:12:12,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-20 22:12:12,026 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:12:12,026 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:12:12,044 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:12:12,044 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:12:12,051 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-20 22:12:12,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:12,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:12:12,053 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:12:12,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-20 22:12:12,055 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:12:12,055 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:12:12,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-20 22:12:12,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:12,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:12:12,074 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:12:12,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-20 22:12:12,076 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-20 22:12:12,076 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:12:12,142 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-20 22:12:12,146 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-20 22:12:12,147 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:12:12,147 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:12:12,147 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:12:12,147 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:12:12,147 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-20 22:12:12,147 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:12,147 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:12:12,147 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:12:12,147 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.08.c_Iteration3_Loop [2024-11-20 22:12:12,147 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:12:12,147 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:12:12,148 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:12:12,151 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:12:12,157 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:12:12,186 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:12:12,186 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-20 22:12:12,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:12,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:12:12,188 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:12:12,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-20 22:12:12,190 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 [2024-11-20 22:12:12,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:12:12,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:12:12,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:12:12,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:12:12,202 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-20 22:12:12,202 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-20 22:12:12,205 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-20 22:12:12,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-11-20 22:12:12,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:12,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:12:12,219 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:12:12,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-20 22:12:12,222 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 [2024-11-20 22:12:12,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:12:12,232 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:12:12,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:12:12,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:12:12,232 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:12:12,234 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-20 22:12:12,234 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:12:12,238 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-20 22:12:12,240 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-20 22:12:12,240 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-20 22:12:12,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:12:12,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:12:12,242 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:12:12,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-20 22:12:12,245 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-20 22:12:12,245 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-20 22:12:12,245 INFO L474 LassoAnalysis]: Proved termination. [2024-11-20 22:12:12,245 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~i~0#1 - 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2024-11-20 22:12:12,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-20 22:12:12,252 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-20 22:12:12,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:12:12,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:12:12,275 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 22:12:12,275 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:12:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:12:12,283 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:12:12,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:12:12,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:12:12,284 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-20 22:12:12,285 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2024-11-20 22:12:12,289 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 8 states and 11 transitions. Complement of second has 3 states. [2024-11-20 22:12:12,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-11-20 22:12:12,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2024-11-20 22:12:12,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2024-11-20 22:12:12,291 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 6 letters. Loop has 1 letters. [2024-11-20 22:12:12,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:12:12,291 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-20 22:12:12,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:12:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:12:12,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 22:12:12,307 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:12:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:12:12,315 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:12:12,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:12:12,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:12:12,316 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-20 22:12:12,316 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2024-11-20 22:12:12,321 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 8 states and 11 transitions. Complement of second has 3 states. [2024-11-20 22:12:12,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-11-20 22:12:12,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2024-11-20 22:12:12,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2024-11-20 22:12:12,322 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 6 letters. Loop has 1 letters. [2024-11-20 22:12:12,322 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:12:12,322 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-20 22:12:12,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:12:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:12:12,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 22:12:12,336 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:12:12,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:12:12,344 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:12:12,344 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:12:12,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:12:12,345 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-20 22:12:12,345 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2024-11-20 22:12:12,351 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 8 states and 10 transitions. Complement of second has 2 states. [2024-11-20 22:12:12,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-11-20 22:12:12,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2024-11-20 22:12:12,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 8 transitions. [2024-11-20 22:12:12,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 6 letters. Loop has 1 letters. [2024-11-20 22:12:12,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:12:12,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 7 letters. Loop has 1 letters. [2024-11-20 22:12:12,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:12:12,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2024-11-20 22:12:12,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:12:12,353 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 10 transitions. [2024-11-20 22:12:12,353 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-20 22:12:12,353 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2024-11-20 22:12:12,354 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-20 22:12:12,354 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-20 22:12:12,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-20 22:12:12,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-20 22:12:12,354 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-20 22:12:12,354 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-20 22:12:12,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:12:12,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 22:12:12,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 22:12:12,357 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:12:12,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 22:12:12,358 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-11-20 22:12:12,359 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-11-20 22:12:12,359 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-20 22:12:12,359 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-11-20 22:12:12,359 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-20 22:12:12,359 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-20 22:12:12,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-20 22:12:12,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-20 22:12:12,359 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-20 22:12:12,359 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-20 22:12:12,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 22:12:12,360 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-20 22:12:12,360 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-20 22:12:12,360 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-20 22:12:12,360 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-20 22:12:12,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-20 22:12:12,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 10:12:12 BoogieIcfgContainer [2024-11-20 22:12:12,366 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-20 22:12:12,366 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 22:12:12,366 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 22:12:12,366 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 22:12:12,367 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:12:10" (3/4) ... [2024-11-20 22:12:12,372 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-20 22:12:12,373 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 22:12:12,373 INFO L158 Benchmark]: Toolchain (without parser) took 2242.80ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 98.8MB in the beginning and 113.6MB in the end (delta: -14.7MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2024-11-20 22:12:12,373 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 100.7MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:12:12,373 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.73ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 87.0MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-20 22:12:12,374 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.60ms. Allocated memory is still 142.6MB. Free memory was 87.0MB in the beginning and 85.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:12:12,374 INFO L158 Benchmark]: Boogie Preprocessor took 22.63ms. Allocated memory is still 142.6MB. Free memory was 85.6MB in the beginning and 84.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 22:12:12,374 INFO L158 Benchmark]: RCFGBuilder took 207.11ms. Allocated memory is still 142.6MB. Free memory was 84.2MB in the beginning and 113.8MB in the end (delta: -29.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-20 22:12:12,374 INFO L158 Benchmark]: BuchiAutomizer took 1777.54ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 113.8MB in the beginning and 114.6MB in the end (delta: -831.4kB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2024-11-20 22:12:12,375 INFO L158 Benchmark]: Witness Printer took 6.59ms. Allocated memory is still 172.0MB. Free memory was 114.6MB in the beginning and 113.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 22:12:12,378 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 100.7MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.73ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 87.0MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.60ms. Allocated memory is still 142.6MB. Free memory was 87.0MB in the beginning and 85.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.63ms. Allocated memory is still 142.6MB. Free memory was 85.6MB in the beginning and 84.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 207.11ms. Allocated memory is still 142.6MB. Free memory was 84.2MB in the beginning and 113.8MB in the end (delta: -29.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 1777.54ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 113.8MB in the beginning and 114.6MB in the end (delta: -831.4kB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. * Witness Printer took 6.59ms. Allocated memory is still 172.0MB. Free memory was 114.6MB in the beginning and 113.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function (((long) 2 * i) + 1) and consists of 4 locations. One deterministic module has affine ranking function (((long) -1 * j) + i) and consists of 2 locations. One nondeterministic module has affine ranking function (((long) -1 * j) + i) and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 17 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax206 hnf100 lsp48 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq166 hnf92 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 29ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-20 22:12:12,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-20 22:12:12,594 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