./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-lit/mcmillan2006.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loop-lit/mcmillan2006.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash 45cd9f1eda35cecb580d3b7fe5199506be9e5041f2297c1c3e22e0a862fa68be --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 08:34:39,148 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 08:34:39,205 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-17 08:34:39,210 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 08:34:39,211 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 08:34:39,211 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-17 08:34:39,232 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 08:34:39,234 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 08:34:39,234 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 08:34:39,235 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 08:34:39,236 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 08:34:39,236 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 08:34:39,236 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 08:34:39,238 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 08:34:39,238 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-17 08:34:39,238 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-17 08:34:39,239 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-17 08:34:39,239 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-17 08:34:39,239 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-17 08:34:39,239 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-17 08:34:39,239 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 08:34:39,240 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-17 08:34:39,240 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 08:34:39,240 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 08:34:39,240 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 08:34:39,241 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 08:34:39,241 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-17 08:34:39,241 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-17 08:34:39,241 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-17 08:34:39,241 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 08:34:39,241 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 08:34:39,242 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 08:34:39,242 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 08:34:39,242 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-17 08:34:39,242 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 08:34:39,242 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 08:34:39,243 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 08:34:39,245 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 08:34:39,245 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 08:34:39,246 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-17 08:34:39,246 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45cd9f1eda35cecb580d3b7fe5199506be9e5041f2297c1c3e22e0a862fa68be [2024-11-17 08:34:39,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 08:34:39,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 08:34:39,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 08:34:39,470 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 08:34:39,471 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 08:34:39,472 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/mcmillan2006.i [2024-11-17 08:34:40,701 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 08:34:40,838 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 08:34:40,839 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/mcmillan2006.i [2024-11-17 08:34:40,844 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39e8758dc/10b7eab34f174af992e3f6de1f997301/FLAG140fad834 [2024-11-17 08:34:41,256 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39e8758dc/10b7eab34f174af992e3f6de1f997301 [2024-11-17 08:34:41,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 08:34:41,262 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 08:34:41,264 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 08:34:41,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 08:34:41,268 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 08:34:41,269 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:34:41" (1/1) ... [2024-11-17 08:34:41,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@634e5c07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:41, skipping insertion in model container [2024-11-17 08:34:41,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:34:41" (1/1) ... [2024-11-17 08:34:41,283 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 08:34:41,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:34:41,423 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 08:34:41,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:34:41,450 INFO L204 MainTranslator]: Completed translation [2024-11-17 08:34:41,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:41 WrapperNode [2024-11-17 08:34:41,451 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 08:34:41,452 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 08:34:41,452 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 08:34:41,452 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 08:34:41,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:41" (1/1) ... [2024-11-17 08:34:41,462 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:41" (1/1) ... [2024-11-17 08:34:41,474 INFO L138 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 46 [2024-11-17 08:34:41,474 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 08:34:41,475 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 08:34:41,475 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 08:34:41,475 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 08:34:41,482 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:41" (1/1) ... [2024-11-17 08:34:41,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:41" (1/1) ... [2024-11-17 08:34:41,483 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:41" (1/1) ... [2024-11-17 08:34:41,492 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [2, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-17 08:34:41,492 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:41" (1/1) ... [2024-11-17 08:34:41,492 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:41" (1/1) ... [2024-11-17 08:34:41,497 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:41" (1/1) ... [2024-11-17 08:34:41,497 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:41" (1/1) ... [2024-11-17 08:34:41,497 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:41" (1/1) ... [2024-11-17 08:34:41,498 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:41" (1/1) ... [2024-11-17 08:34:41,499 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 08:34:41,500 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 08:34:41,500 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 08:34:41,500 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 08:34:41,501 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:41" (1/1) ... [2024-11-17 08:34:41,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:34:41,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:34:41,531 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:34:41,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-17 08:34:41,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 08:34:41,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 08:34:41,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 08:34:41,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 08:34:41,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 08:34:41,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-17 08:34:41,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 08:34:41,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 08:34:41,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 08:34:41,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 08:34:41,625 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 08:34:41,626 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 08:34:41,713 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-17 08:34:41,714 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 08:34:41,721 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 08:34:41,721 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 08:34:41,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:34:41 BoogieIcfgContainer [2024-11-17 08:34:41,722 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 08:34:41,727 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-17 08:34:41,727 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-17 08:34:41,729 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-17 08:34:41,730 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:34:41,730 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.11 08:34:41" (1/3) ... [2024-11-17 08:34:41,731 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@249444f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:34:41, skipping insertion in model container [2024-11-17 08:34:41,731 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:34:41,731 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:34:41" (2/3) ... [2024-11-17 08:34:41,731 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@249444f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:34:41, skipping insertion in model container [2024-11-17 08:34:41,731 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:34:41,732 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:34:41" (3/3) ... [2024-11-17 08:34:41,732 INFO L332 chiAutomizerObserver]: Analyzing ICFG mcmillan2006.i [2024-11-17 08:34:41,783 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-17 08:34:41,783 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-17 08:34:41,783 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-17 08:34:41,785 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-17 08:34:41,785 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-17 08:34:41,785 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-17 08:34:41,785 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-17 08:34:41,785 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-17 08:34:41,788 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:34:41,800 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2024-11-17 08:34:41,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:34:41,801 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:34:41,805 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-17 08:34:41,805 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-17 08:34:41,805 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-17 08:34:41,806 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:34:41,807 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2024-11-17 08:34:41,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:34:41,807 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:34:41,808 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-17 08:34:41,808 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-17 08:34:41,813 INFO L745 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 12#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~post3#1, main_~i~0#1, main_#t~mem4#1, main_#t~post5#1, main_~i~1#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 13#L28-1true assume !!(0 <= main_~n~0#1 && main_~n~0#1 <= 1000);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(4 * main_~n~0#1 % 4294967296);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;main_~i~0#1 := 0; 9#L30-1true [2024-11-17 08:34:41,814 INFO L747 eck$LassoCheckResult]: Loop: 9#L30-1true assume true; 17#L30-3true assume !!(main_~i~0#1 < main_~n~0#1);call write~int#1(0, main_~x~0#1.base, main_~x~0#1.offset + 4 * main_~i~0#1, 4);main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 9#L30-1true [2024-11-17 08:34:41,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:34:41,835 INFO L85 PathProgramCache]: Analyzing trace with hash 59548, now seen corresponding path program 1 times [2024-11-17 08:34:41,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:34:41,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776361714] [2024-11-17 08:34:41,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:34:41,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:34:41,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:41,919 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:34:41,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:41,945 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:34:41,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:34:41,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1664, now seen corresponding path program 1 times [2024-11-17 08:34:41,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:34:41,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568590767] [2024-11-17 08:34:41,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:34:41,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:34:41,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:41,958 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:34:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:41,967 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:34:41,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:34:41,968 INFO L85 PathProgramCache]: Analyzing trace with hash 57226331, now seen corresponding path program 1 times [2024-11-17 08:34:41,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:34:41,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094728901] [2024-11-17 08:34:41,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:34:41,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:34:41,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:41,984 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:34:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:41,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:34:42,243 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:34:42,244 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:34:42,244 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:34:42,247 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:34:42,247 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:34:42,247 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:34:42,247 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:34:42,248 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:34:42,248 INFO L132 ssoRankerPreferences]: Filename of dumped script: mcmillan2006.i_Iteration1_Lasso [2024-11-17 08:34:42,248 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:34:42,249 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:34:42,262 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:34:42,285 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:34:42,288 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:34:42,290 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:34:42,436 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:34:42,438 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:34:42,441 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:34:42,443 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:34:42,444 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:34:42,446 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:34:42,666 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:34:42,669 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:34:42,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:34:42,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:34:42,673 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:34:42,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-17 08:34:42,676 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:34:42,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:34:42,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:34:42,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:34:42,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:34:42,691 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:34:42,692 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:34:42,696 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:34:42,707 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-17 08:34:42,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:34:42,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:34:42,709 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:34:42,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-17 08:34:42,711 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:34:42,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:34:42,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:34:42,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:34:42,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:34:42,723 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:34:42,723 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:34:42,726 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:34:42,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-17 08:34:42,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:34:42,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:34:42,740 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:34:42,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-17 08:34:42,741 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:34:42,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:34:42,752 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:34:42,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:34:42,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:34:42,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:34:42,753 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:34:42,753 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:34:42,754 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:34:42,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-17 08:34:42,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:34:42,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:34:42,767 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:34:42,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-17 08:34:42,770 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:34:42,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:34:42,781 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:34:42,781 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:34:42,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:34:42,781 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:34:42,782 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:34:42,782 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:34:42,783 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:34:42,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-17 08:34:42,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:34:42,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:34:42,802 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:34:42,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-17 08:34:42,804 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:34:42,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:34:42,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:34:42,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:34:42,814 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:34:42,817 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:34:42,817 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:34:42,820 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:34:42,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-17 08:34:42,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:34:42,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:34:42,836 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:34:42,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-17 08:34:42,837 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:34:42,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:34:42,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:34:42,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:34:42,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:34:42,850 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:34:42,850 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:34:42,853 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:34:42,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-17 08:34:42,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:34:42,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:34:42,866 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:34:42,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-17 08:34:42,868 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:34:42,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:34:42,879 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:34:42,879 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:34:42,879 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:34:42,883 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:34:42,883 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:34:42,891 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:34:42,920 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2024-11-17 08:34:42,920 INFO L444 ModelExtractionUtils]: 0 out of 16 variables were initially zero. Simplification set additionally 12 variables to zero. [2024-11-17 08:34:42,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:34:42,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:34:42,941 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:34:42,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-17 08:34:42,943 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:34:42,954 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2024-11-17 08:34:42,955 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:34:42,955 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~x~0#1.base)_1, ULTIMATE.start_main_~i~0#1) = 1*v_rep(select #length ULTIMATE.start_main_~x~0#1.base)_1 - 4*ULTIMATE.start_main_~i~0#1 Supporting invariants [1*ULTIMATE.start_main_~x~0#1.offset >= 0] [2024-11-17 08:34:42,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-17 08:34:42,978 INFO L156 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2024-11-17 08:34:42,986 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-17 08:34:42,987 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-17 08:34:43,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:34:43,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:34:43,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 08:34:43,025 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:34:43,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:34:43,039 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 08:34:43,040 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:34:43,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:34:43,087 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-17 08:34:43,091 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 [2024-11-17 08:34:43,093 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 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) [2024-11-17 08:34:43,132 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 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 34 states and 44 transitions. Complement of second has 6 states. [2024-11-17 08:34:43,140 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 [2024-11-17 08:34:43,144 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) [2024-11-17 08:34:43,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2024-11-17 08:34:43,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 3 letters. Loop has 2 letters. [2024-11-17 08:34:43,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:34:43,147 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 5 letters. Loop has 2 letters. [2024-11-17 08:34:43,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:34:43,147 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 3 letters. Loop has 4 letters. [2024-11-17 08:34:43,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:34:43,148 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 44 transitions. [2024-11-17 08:34:43,149 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-17 08:34:43,152 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 15 states and 19 transitions. [2024-11-17 08:34:43,153 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-11-17 08:34:43,153 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-17 08:34:43,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2024-11-17 08:34:43,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:34:43,154 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 19 transitions. [2024-11-17 08:34:43,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2024-11-17 08:34:43,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-17 08:34:43,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:34:43,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2024-11-17 08:34:43,172 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 19 transitions. [2024-11-17 08:34:43,172 INFO L425 stractBuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2024-11-17 08:34:43,172 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-17 08:34:43,172 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2024-11-17 08:34:43,173 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-17 08:34:43,173 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:34:43,173 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:34:43,173 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-17 08:34:43,173 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-17 08:34:43,174 INFO L745 eck$LassoCheckResult]: Stem: 114#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 115#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~post3#1, main_~i~0#1, main_#t~mem4#1, main_#t~post5#1, main_~i~1#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 128#L28-1 assume !!(0 <= main_~n~0#1 && main_~n~0#1 <= 1000);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(4 * main_~n~0#1 % 4294967296);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;main_~i~0#1 := 0; 124#L30-1 assume true; 126#L30-3 assume !(main_~i~0#1 < main_~n~0#1); 118#L30 havoc main_~i~0#1;main_~i~1#1 := 0; 119#L31-1 [2024-11-17 08:34:43,174 INFO L747 eck$LassoCheckResult]: Loop: 119#L31-1 assume true; 122#L31-3 assume !!(main_~i~1#1 < main_~n~0#1);call main_#t~mem4#1 := read~int#1(main_~x~0#1.base, main_~x~0#1.offset + 4 * main_~i~1#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 == main_#t~mem4#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 123#L19 assume !(0 == __VERIFIER_assert_~cond#1); 117#L22 assume true;havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 119#L31-1 [2024-11-17 08:34:43,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:34:43,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1774016216, now seen corresponding path program 1 times [2024-11-17 08:34:43,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:34:43,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010081225] [2024-11-17 08:34:43,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:34:43,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:34:43,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:43,191 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:34:43,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:43,202 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:34:43,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:34:43,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1384153, now seen corresponding path program 1 times [2024-11-17 08:34:43,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:34:43,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765967756] [2024-11-17 08:34:43,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:34:43,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:34:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:43,218 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:34:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:43,226 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:34:43,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:34:43,227 INFO L85 PathProgramCache]: Analyzing trace with hash 185414192, now seen corresponding path program 1 times [2024-11-17 08:34:43,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:34:43,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109370071] [2024-11-17 08:34:43,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:34:43,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:34:43,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:34:43,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:34:43,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:34:43,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109370071] [2024-11-17 08:34:43,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109370071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:34:43,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:34:43,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 08:34:43,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443625904] [2024-11-17 08:34:43,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:34:43,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:34:43,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 08:34:43,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 08:34:43,401 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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) [2024-11-17 08:34:43,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:34:43,420 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2024-11-17 08:34:43,420 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 20 transitions. [2024-11-17 08:34:43,422 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-17 08:34:43,423 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 13 states and 14 transitions. [2024-11-17 08:34:43,424 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-11-17 08:34:43,424 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-11-17 08:34:43,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 14 transitions. [2024-11-17 08:34:43,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:34:43,424 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 14 transitions. [2024-11-17 08:34:43,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 14 transitions. [2024-11-17 08:34:43,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-11-17 08:34:43,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:34:43,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2024-11-17 08:34:43,425 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 13 transitions. [2024-11-17 08:34:43,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 08:34:43,427 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2024-11-17 08:34:43,427 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-17 08:34:43,428 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 13 transitions. [2024-11-17 08:34:43,428 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-17 08:34:43,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:34:43,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:34:43,430 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-17 08:34:43,430 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-17 08:34:43,430 INFO L745 eck$LassoCheckResult]: Stem: 164#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 165#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~post3#1, main_~i~0#1, main_#t~mem4#1, main_#t~post5#1, main_~i~1#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 167#L28-1 assume !!(0 <= main_~n~0#1 && main_~n~0#1 <= 1000);call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(4 * main_~n~0#1 % 4294967296);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;main_~i~0#1 := 0; 158#L30-1 assume true; 159#L30-3 assume !!(main_~i~0#1 < main_~n~0#1);call write~int#1(0, main_~x~0#1.base, main_~x~0#1.offset + 4 * main_~i~0#1, 4);main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 160#L30-1 assume true; 161#L30-3 assume !(main_~i~0#1 < main_~n~0#1); 166#L30 havoc main_~i~0#1;main_~i~1#1 := 0; 163#L31-1 [2024-11-17 08:34:43,430 INFO L747 eck$LassoCheckResult]: Loop: 163#L31-1 assume true; 168#L31-3 assume !!(main_~i~1#1 < main_~n~0#1);call main_#t~mem4#1 := read~int#1(main_~x~0#1.base, main_~x~0#1.offset + 4 * main_~i~1#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 == main_#t~mem4#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 169#L19 assume !(0 == __VERIFIER_assert_~cond#1); 162#L22 assume true;havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 163#L31-1 [2024-11-17 08:34:43,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:34:43,431 INFO L85 PathProgramCache]: Analyzing trace with hash -272367943, now seen corresponding path program 1 times [2024-11-17 08:34:43,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:34:43,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485642952] [2024-11-17 08:34:43,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:34:43,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:34:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:43,453 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:34:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:43,461 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:34:43,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:34:43,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1384153, now seen corresponding path program 2 times [2024-11-17 08:34:43,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:34:43,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374275749] [2024-11-17 08:34:43,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:34:43,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:34:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:43,476 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:34:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:43,485 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:34:43,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:34:43,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1540030865, now seen corresponding path program 1 times [2024-11-17 08:34:43,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:34:43,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160518391] [2024-11-17 08:34:43,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:34:43,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:34:43,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:43,506 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:34:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:34:43,527 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:34:43,769 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:34:43,769 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:34:43,769 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:34:43,769 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:34:43,769 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:34:43,769 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:34:43,769 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:34:43,769 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:34:43,770 INFO L132 ssoRankerPreferences]: Filename of dumped script: mcmillan2006.i_Iteration3_Lasso [2024-11-17 08:34:43,770 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:34:43,770 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:34:43,771 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:34:43,773 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:34:43,775 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:34:43,781 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:34:43,894 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:34:43,896 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:34:43,898 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:34:43,900 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:34:43,901 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:34:43,903 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:34:43,904 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:34:43,906 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:34:44,073 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:34:44,074 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:34:44,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:34:44,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:34:44,075 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:34:44,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-17 08:34:44,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:34:44,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:34:44,089 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:34:44,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:34:44,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:34:44,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:34:44,090 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:34:44,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:34:44,092 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:34:44,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-17 08:34:44,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:34:44,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:34:44,103 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:34:44,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-17 08:34:44,108 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:34:44,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:34:44,119 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:34:44,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:34:44,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:34:44,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:34:44,120 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:34:44,120 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:34:44,121 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:34:44,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-17 08:34:44,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:34:44,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:34:44,132 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:34:44,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-17 08:34:44,134 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:34:44,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:34:44,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:34:44,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:34:44,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:34:44,145 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:34:44,145 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:34:44,148 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:34:44,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-17 08:34:44,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:34:44,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:34:44,159 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:34:44,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-17 08:34:44,161 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:34:44,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:34:44,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:34:44,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:34:44,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:34:44,172 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:34:44,172 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:34:44,174 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:34:44,185 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-17 08:34:44,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:34:44,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:34:44,187 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:34:44,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-17 08:34:44,189 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-17 08:34:44,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:34:44,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:34:44,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:34:44,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:34:44,202 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:34:44,202 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:34:44,208 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:34:44,220 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2024-11-17 08:34:44,221 INFO L444 ModelExtractionUtils]: 1 out of 16 variables were initially zero. Simplification set additionally 12 variables to zero. [2024-11-17 08:34:44,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:34:44,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:34:44,222 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:34:44,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-17 08:34:44,224 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:34:44,235 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-11-17 08:34:44,235 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:34:44,235 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~1#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2024-11-17 08:34:44,246 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-17 08:34:44,259 INFO L156 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2024-11-17 08:34:44,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:34:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:34:44,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:34:44,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:34:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:34:44,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:34:44,302 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:34:44,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:34:44,320 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 [2024-11-17 08:34:44,320 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:34:44,335 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 18 transitions. Complement of second has 6 states. [2024-11-17 08:34:44,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-17 08:34:44,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:34:44,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2024-11-17 08:34:44,336 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 8 letters. Loop has 4 letters. [2024-11-17 08:34:44,336 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:34:44,336 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 12 letters. Loop has 4 letters. [2024-11-17 08:34:44,336 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:34:44,336 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 8 letters. Loop has 8 letters. [2024-11-17 08:34:44,336 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:34:44,336 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 18 transitions. [2024-11-17 08:34:44,337 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-17 08:34:44,337 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2024-11-17 08:34:44,337 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-17 08:34:44,337 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-17 08:34:44,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-17 08:34:44,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:34:44,337 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:34:44,337 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:34:44,337 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 08:34:44,337 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-17 08:34:44,337 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-17 08:34:44,337 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-17 08:34:44,337 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-17 08:34:44,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.11 08:34:44 BoogieIcfgContainer [2024-11-17 08:34:44,344 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-17 08:34:44,345 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 08:34:44,345 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 08:34:44,345 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 08:34:44,345 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:34:41" (3/4) ... [2024-11-17 08:34:44,348 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-17 08:34:44,348 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 08:34:44,351 INFO L158 Benchmark]: Toolchain (without parser) took 3087.05ms. Allocated memory was 172.0MB in the beginning and 234.9MB in the end (delta: 62.9MB). Free memory was 117.3MB in the beginning and 79.8MB in the end (delta: 37.5MB). Peak memory consumption was 100.8MB. Max. memory is 16.1GB. [2024-11-17 08:34:44,351 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 172.0MB. Free memory is still 132.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:34:44,351 INFO L158 Benchmark]: CACSL2BoogieTranslator took 187.55ms. Allocated memory is still 172.0MB. Free memory was 117.3MB in the beginning and 104.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-17 08:34:44,353 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.20ms. Allocated memory is still 172.0MB. Free memory was 104.7MB in the beginning and 103.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:34:44,353 INFO L158 Benchmark]: Boogie Preprocessor took 25.08ms. Allocated memory is still 172.0MB. Free memory was 103.1MB in the beginning and 101.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:34:44,354 INFO L158 Benchmark]: IcfgBuilder took 222.04ms. Allocated memory is still 172.0MB. Free memory was 101.4MB in the beginning and 90.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-17 08:34:44,354 INFO L158 Benchmark]: BuchiAutomizer took 2617.89ms. Allocated memory was 172.0MB in the beginning and 234.9MB in the end (delta: 62.9MB). Free memory was 90.0MB in the beginning and 79.8MB in the end (delta: 10.2MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. [2024-11-17 08:34:44,354 INFO L158 Benchmark]: Witness Printer took 3.69ms. Allocated memory is still 234.9MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:34:44,355 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 172.0MB. Free memory is still 132.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 187.55ms. Allocated memory is still 172.0MB. Free memory was 117.3MB in the beginning and 104.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.20ms. Allocated memory is still 172.0MB. Free memory was 104.7MB in the beginning and 103.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.08ms. Allocated memory is still 172.0MB. Free memory was 103.1MB in the beginning and 101.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 222.04ms. Allocated memory is still 172.0MB. Free memory was 101.4MB in the beginning and 90.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2617.89ms. Allocated memory was 172.0MB in the beginning and 234.9MB in the end (delta: 62.9MB). Free memory was 90.0MB in the beginning and 79.8MB in the end (delta: 10.2MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. * Witness Printer took 3.69ms. Allocated memory is still 234.9MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function null and consists of 4 locations. One deterministic module has affine ranking function (n + ((long long) -1 * i)) and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 27 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital136 mio100 ax100 hnf100 lsp89 ukn77 mio100 lsp44 div140 bol100 ite100 ukn100 eq149 hnf93 smp85 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-17 08:34:44,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-11-17 08:34:44,584 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