./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-invgen/nested6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3061b6dc 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-invgen/nested6.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 327b0d5e70f014fe291a4771fe2bbb17cb1148e77fe8f6a261d10a47df8adacc --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:46:18,574 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:46:18,635 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-19 14:46:18,641 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:46:18,641 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:46:18,668 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:46:18,668 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:46:18,669 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:46:18,669 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:46:18,671 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:46:18,671 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:46:18,672 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:46:18,672 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:46:18,672 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-19 14:46:18,675 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-19 14:46:18,675 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-19 14:46:18,675 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-19 14:46:18,676 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-19 14:46:18,676 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-19 14:46:18,676 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:46:18,676 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-19 14:46:18,677 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 14:46:18,677 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:46:18,677 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 14:46:18,677 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:46:18,677 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-19 14:46:18,678 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-19 14:46:18,678 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-19 14:46:18,678 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:46:18,678 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:46:18,679 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 14:46:18,679 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:46:18,679 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-19 14:46:18,679 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:46:18,680 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:46:18,680 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:46:18,680 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:46:18,680 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:46:18,681 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-19 14:46:18,681 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 327b0d5e70f014fe291a4771fe2bbb17cb1148e77fe8f6a261d10a47df8adacc [2024-11-19 14:46:18,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:46:18,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:46:18,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:46:18,927 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:46:18,928 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:46:18,929 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/nested6.i [2024-11-19 14:46:20,301 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:46:20,455 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:46:20,455 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/nested6.i [2024-11-19 14:46:20,462 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf3f63daf/86daad16737d437d83bc12c12d806c81/FLAGfbd20020d [2024-11-19 14:46:20,472 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf3f63daf/86daad16737d437d83bc12c12d806c81 [2024-11-19 14:46:20,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:46:20,475 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:46:20,476 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:46:20,477 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:46:20,482 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:46:20,482 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:46:20" (1/1) ... [2024-11-19 14:46:20,483 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f393e10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:20, skipping insertion in model container [2024-11-19 14:46:20,483 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:46:20" (1/1) ... [2024-11-19 14:46:20,503 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:46:20,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:46:20,660 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:46:20,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:46:20,685 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:46:20,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:20 WrapperNode [2024-11-19 14:46:20,685 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:46:20,686 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:46:20,686 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:46:20,686 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:46:20,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:20" (1/1) ... [2024-11-19 14:46:20,696 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:20" (1/1) ... [2024-11-19 14:46:20,710 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 81 [2024-11-19 14:46:20,710 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:46:20,711 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:46:20,711 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:46:20,711 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:46:20,731 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:20" (1/1) ... [2024-11-19 14:46:20,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:20" (1/1) ... [2024-11-19 14:46:20,734 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:20" (1/1) ... [2024-11-19 14:46:20,743 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 14:46:20,743 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:20" (1/1) ... [2024-11-19 14:46:20,743 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:20" (1/1) ... [2024-11-19 14:46:20,745 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:20" (1/1) ... [2024-11-19 14:46:20,748 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:20" (1/1) ... [2024-11-19 14:46:20,751 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:20" (1/1) ... [2024-11-19 14:46:20,751 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:20" (1/1) ... [2024-11-19 14:46:20,752 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:46:20,753 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:46:20,754 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:46:20,754 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:46:20,755 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:20" (1/1) ... [2024-11-19 14:46:20,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:20,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:20,796 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) [2024-11-19 14:46:20,798 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 [2024-11-19 14:46:20,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 14:46:20,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 14:46:20,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:46:20,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:46:20,888 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:46:20,890 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:46:21,066 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-19 14:46:21,066 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:46:21,086 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:46:21,086 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-19 14:46:21,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:46:21 BoogieIcfgContainer [2024-11-19 14:46:21,086 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:46:21,087 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-19 14:46:21,087 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-19 14:46:21,092 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-19 14:46:21,093 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-19 14:46:21,093 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 02:46:20" (1/3) ... [2024-11-19 14:46:21,095 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@411c454d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 02:46:21, skipping insertion in model container [2024-11-19 14:46:21,095 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-19 14:46:21,095 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:20" (2/3) ... [2024-11-19 14:46:21,095 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@411c454d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 02:46:21, skipping insertion in model container [2024-11-19 14:46:21,096 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-19 14:46:21,096 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:46:21" (3/3) ... [2024-11-19 14:46:21,097 INFO L332 chiAutomizerObserver]: Analyzing ICFG nested6.i [2024-11-19 14:46:21,157 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-19 14:46:21,158 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-19 14:46:21,158 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-19 14:46:21,158 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-19 14:46:21,158 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-19 14:46:21,158 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-19 14:46:21,159 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-19 14:46:21,159 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-19 14:46:21,163 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 31 states, 30 states have (on average 1.5) internal successors, (45), 30 states have internal predecessors, (45), 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) [2024-11-19 14:46:21,177 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2024-11-19 14:46:21,177 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:46:21,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:46:21,181 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-19 14:46:21,181 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-19 14:46:21,181 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-19 14:46:21,182 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 31 states, 30 states have (on average 1.5) internal successors, (45), 30 states have internal predecessors, (45), 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) [2024-11-19 14:46:21,184 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2024-11-19 14:46:21,185 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:46:21,185 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:46:21,185 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-19 14:46:21,185 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-19 14:46:21,190 INFO L745 eck$LassoCheckResult]: Stem: 29#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 27#L28true assume !!(main_~n~0#1 < 1000000); 21#L29true assume main_~k~0#1 == main_~n~0#1; 22#L29-1true main_~i~0#1 := 0; 30#L33-3true [2024-11-19 14:46:21,190 INFO L747 eck$LassoCheckResult]: Loop: 30#L33-3true assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 16#L34-3true assume !true; 23#L33-2true main_#t~post6#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 30#L33-3true [2024-11-19 14:46:21,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:21,197 INFO L85 PathProgramCache]: Analyzing trace with hash 28695784, now seen corresponding path program 1 times [2024-11-19 14:46:21,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:46:21,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122149545] [2024-11-19 14:46:21,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:46:21,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:46:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:46:21,280 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:46:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:46:21,303 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:46:21,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:21,305 INFO L85 PathProgramCache]: Analyzing trace with hash 54231, now seen corresponding path program 1 times [2024-11-19 14:46:21,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:46:21,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066797953] [2024-11-19 14:46:21,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:46:21,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:46:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:46:21,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:46:21,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:46:21,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066797953] [2024-11-19 14:46:21,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066797953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:46:21,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:46:21,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:46:21,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881825131] [2024-11-19 14:46:21,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:46:21,350 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-19 14:46:21,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:46:21,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 14:46:21,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 14:46:21,386 INFO L87 Difference]: Start difference. First operand has 31 states, 30 states have (on average 1.5) internal successors, (45), 30 states have internal predecessors, (45), 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 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2024-11-19 14:46:21,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 14:46:21,392 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2024-11-19 14:46:21,393 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 33 transitions. [2024-11-19 14:46:21,395 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-19 14:46:21,397 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 18 states and 21 transitions. [2024-11-19 14:46:21,397 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2024-11-19 14:46:21,398 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-11-19 14:46:21,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2024-11-19 14:46:21,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-19 14:46:21,399 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 21 transitions. [2024-11-19 14:46:21,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2024-11-19 14:46:21,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-19 14:46:21,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:46:21,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2024-11-19 14:46:21,418 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 21 transitions. [2024-11-19 14:46:21,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 14:46:21,421 INFO L425 stractBuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2024-11-19 14:46:21,421 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-19 14:46:21,421 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2024-11-19 14:46:21,422 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-19 14:46:21,422 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:46:21,422 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:46:21,423 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-19 14:46:21,423 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-19 14:46:21,423 INFO L745 eck$LassoCheckResult]: Stem: 83#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 73#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 74#L28 assume !!(main_~n~0#1 < 1000000); 69#L29 assume main_~k~0#1 == main_~n~0#1; 70#L29-1 main_~i~0#1 := 0; 71#L33-3 [2024-11-19 14:46:21,423 INFO L747 eck$LassoCheckResult]: Loop: 71#L33-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 79#L34-3 assume !(main_~j~0#1 < main_~n~0#1); 72#L33-2 main_#t~post6#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 71#L33-3 [2024-11-19 14:46:21,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:21,424 INFO L85 PathProgramCache]: Analyzing trace with hash 28695784, now seen corresponding path program 2 times [2024-11-19 14:46:21,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:46:21,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294384964] [2024-11-19 14:46:21,424 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:46:21,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:46:21,434 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:46:21,435 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:46:21,435 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:46:21,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:46:21,445 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:46:21,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:21,446 INFO L85 PathProgramCache]: Analyzing trace with hash 51906, now seen corresponding path program 1 times [2024-11-19 14:46:21,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:46:21,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134375784] [2024-11-19 14:46:21,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:46:21,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:46:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:46:21,458 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:46:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:46:21,469 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:46:21,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:21,471 INFO L85 PathProgramCache]: Analyzing trace with hash 177631355, now seen corresponding path program 1 times [2024-11-19 14:46:21,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:46:21,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814639100] [2024-11-19 14:46:21,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:46:21,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:46:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:46:21,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:46:21,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:46:21,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814639100] [2024-11-19 14:46:21,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814639100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:46:21,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:46:21,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 14:46:21,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656362651] [2024-11-19 14:46:21,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:46:21,666 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:46:21,667 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:46:21,667 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:46:21,667 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:46:21,667 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 14:46:21,667 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:21,667 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:46:21,668 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:46:21,668 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration2_Loop [2024-11-19 14:46:21,668 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:46:21,668 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:46:21,681 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:21,697 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:21,703 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:21,757 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:46:21,758 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 14:46:21,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:21,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:21,769 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) [2024-11-19 14:46:21,779 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 [2024-11-19 14:46:21,780 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:46:21,780 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:46:21,840 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 [2024-11-19 14:46:21,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:21,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:21,850 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) [2024-11-19 14:46:21,853 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 [2024-11-19 14:46:21,854 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 14:46:21,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:46:21,938 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-19 14:46:21,942 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-19 14:46:21,943 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:46:21,943 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:46:21,943 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:46:21,943 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:46:21,943 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 14:46:21,943 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:21,943 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:46:21,943 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:46:21,943 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration2_Loop [2024-11-19 14:46:21,944 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:46:21,944 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:46:21,950 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:21,964 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:21,966 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:21,996 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:46:22,001 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 14:46:22,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:22,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:22,003 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) [2024-11-19 14:46:22,004 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 [2024-11-19 14:46:22,005 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 [2024-11-19 14:46:22,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:46:22,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:46:22,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:46:22,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:46:22,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:46:22,018 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:46:22,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:46:22,024 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 14:46:22,028 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-19 14:46:22,028 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-19 14:46:22,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:22,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:22,047 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) [2024-11-19 14:46:22,049 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 [2024-11-19 14:46:22,050 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 14:46:22,050 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 14:46:22,051 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 14:46:22,051 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~n~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-19 14:46:22,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-19 14:46:22,064 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 14:46:22,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:46:22,100 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:46:22,101 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:46:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:46:22,123 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:46:22,124 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:46:22,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:46:22,153 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 [2024-11-19 14:46:22,154 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-11-19 14:46:22,202 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 32 states and 40 transitions. Complement of second has 4 states. [2024-11-19 14:46:22,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-19 14:46:22,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-11-19 14:46:22,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 21 transitions. [2024-11-19 14:46:22,206 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 21 transitions. Stem has 5 letters. Loop has 3 letters. [2024-11-19 14:46:22,207 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:46:22,207 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 21 transitions. Stem has 8 letters. Loop has 3 letters. [2024-11-19 14:46:22,207 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:46:22,207 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 21 transitions. Stem has 5 letters. Loop has 6 letters. [2024-11-19 14:46:22,208 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:46:22,208 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 40 transitions. [2024-11-19 14:46:22,209 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-19 14:46:22,209 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 31 states and 38 transitions. [2024-11-19 14:46:22,209 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2024-11-19 14:46:22,209 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-11-19 14:46:22,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 38 transitions. [2024-11-19 14:46:22,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:46:22,210 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 38 transitions. [2024-11-19 14:46:22,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 38 transitions. [2024-11-19 14:46:22,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2024-11-19 14:46:22,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 29 states have internal predecessors, (37), 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) [2024-11-19 14:46:22,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2024-11-19 14:46:22,212 INFO L240 hiAutomatonCegarLoop]: Abstraction has 30 states and 37 transitions. [2024-11-19 14:46:22,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:46:22,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:46:22,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:46:22,213 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-11-19 14:46:22,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 14:46:22,248 INFO L93 Difference]: Finished difference Result 55 states and 67 transitions. [2024-11-19 14:46:22,248 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 67 transitions. [2024-11-19 14:46:22,250 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 22 [2024-11-19 14:46:22,250 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 55 states and 67 transitions. [2024-11-19 14:46:22,251 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2024-11-19 14:46:22,251 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2024-11-19 14:46:22,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 67 transitions. [2024-11-19 14:46:22,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:46:22,251 INFO L218 hiAutomatonCegarLoop]: Abstraction has 55 states and 67 transitions. [2024-11-19 14:46:22,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 67 transitions. [2024-11-19 14:46:22,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 31. [2024-11-19 14:46:22,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 30 states have internal predecessors, (38), 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) [2024-11-19 14:46:22,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2024-11-19 14:46:22,254 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 38 transitions. [2024-11-19 14:46:22,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:46:22,255 INFO L425 stractBuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2024-11-19 14:46:22,255 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-19 14:46:22,255 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 38 transitions. [2024-11-19 14:46:22,256 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-19 14:46:22,256 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:46:22,256 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:46:22,256 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-19 14:46:22,256 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-19 14:46:22,256 INFO L745 eck$LassoCheckResult]: Stem: 274#$Ultimate##0 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); 256#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 257#L28 assume !!(main_~n~0#1 < 1000000); 251#L29 assume main_~k~0#1 == main_~n~0#1; 252#L29-1 main_~i~0#1 := 0; 253#L33-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 264#L34-3 [2024-11-19 14:46:22,257 INFO L747 eck$LassoCheckResult]: Loop: 264#L34-3 assume !!(main_~j~0#1 < main_~n~0#1);havoc main_#t~nondet3#1; 276#L35 assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~k~0#1 := main_~j~0#1; 258#L36-3 assume !(main_~k~0#1 < main_~n~0#1); 259#L34-2 main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 264#L34-3 [2024-11-19 14:46:22,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:22,257 INFO L85 PathProgramCache]: Analyzing trace with hash 889569326, now seen corresponding path program 1 times [2024-11-19 14:46:22,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:46:22,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438244173] [2024-11-19 14:46:22,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:46:22,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:46:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:46:22,265 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:46:22,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:46:22,270 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:46:22,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:22,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1850274, now seen corresponding path program 1 times [2024-11-19 14:46:22,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:46:22,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990966710] [2024-11-19 14:46:22,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:46:22,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:46:22,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:46:22,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:46:22,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:46:22,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990966710] [2024-11-19 14:46:22,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990966710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:46:22,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:46:22,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:46:22,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900086995] [2024-11-19 14:46:22,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:46:22,295 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-19 14:46:22,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:46:22,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:46:22,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:46:22,296 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:46:22,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 14:46:22,325 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2024-11-19 14:46:22,325 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 40 transitions. [2024-11-19 14:46:22,327 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-11-19 14:46:22,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 40 transitions. [2024-11-19 14:46:22,328 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2024-11-19 14:46:22,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-11-19 14:46:22,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 40 transitions. [2024-11-19 14:46:22,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:46:22,329 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33 states and 40 transitions. [2024-11-19 14:46:22,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 40 transitions. [2024-11-19 14:46:22,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-11-19 14:46:22,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 32 states have internal predecessors, (40), 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) [2024-11-19 14:46:22,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2024-11-19 14:46:22,331 INFO L240 hiAutomatonCegarLoop]: Abstraction has 33 states and 40 transitions. [2024-11-19 14:46:22,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:46:22,332 INFO L425 stractBuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2024-11-19 14:46:22,332 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-19 14:46:22,332 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 40 transitions. [2024-11-19 14:46:22,332 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-11-19 14:46:22,332 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:46:22,332 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:46:22,333 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-19 14:46:22,333 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:46:22,333 INFO L745 eck$LassoCheckResult]: Stem: 349#$Ultimate##0 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); 329#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 330#L28 assume !!(main_~n~0#1 < 1000000); 324#L29 assume main_~k~0#1 == main_~n~0#1; 325#L29-1 main_~i~0#1 := 0; 326#L33-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 339#L34-3 [2024-11-19 14:46:22,333 INFO L747 eck$LassoCheckResult]: Loop: 339#L34-3 assume !!(main_~j~0#1 < main_~n~0#1);havoc main_#t~nondet3#1; 351#L35 assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 >= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 347#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 320#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 <= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 321#L18-6 assume !(0 == __VERIFIER_assert_~cond#1); 335#L18-8 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 336#L34-2 main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 339#L34-3 [2024-11-19 14:46:22,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:22,334 INFO L85 PathProgramCache]: Analyzing trace with hash 889569326, now seen corresponding path program 2 times [2024-11-19 14:46:22,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:46:22,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213739520] [2024-11-19 14:46:22,334 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:46:22,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:46:22,340 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:46:22,340 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:46:22,340 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:46:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:46:22,345 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:46:22,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:22,345 INFO L85 PathProgramCache]: Analyzing trace with hash 239540955, now seen corresponding path program 1 times [2024-11-19 14:46:22,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:46:22,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788706470] [2024-11-19 14:46:22,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:46:22,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:46:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:46:22,358 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:46:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:46:22,363 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:46:22,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:22,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1037975054, now seen corresponding path program 1 times [2024-11-19 14:46:22,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:46:22,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448506121] [2024-11-19 14:46:22,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:46:22,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:46:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:46:22,372 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:46:22,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:46:22,379 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:46:22,425 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:46:22,425 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:46:22,426 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:46:22,426 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:46:22,426 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 14:46:22,426 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:22,426 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:46:22,426 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:46:22,426 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration4_Loop [2024-11-19 14:46:22,426 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:46:22,426 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:46:22,427 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:22,429 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:22,441 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:22,444 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:22,445 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:22,476 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:46:22,476 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 14:46:22,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:22,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:22,479 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) [2024-11-19 14:46:22,491 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 [2024-11-19 14:46:22,493 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:46:22,493 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:46:22,508 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:46:22,508 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 14:46:22,523 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-19 14:46:22,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:22,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:22,528 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) [2024-11-19 14:46:22,529 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 [2024-11-19 14:46:22,530 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:46:22,530 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:46:22,557 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-19 14:46:22,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:22,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:22,561 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) [2024-11-19 14:46:22,565 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 [2024-11-19 14:46:22,566 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 14:46:22,566 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:46:22,804 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-19 14:46:22,809 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-19 14:46:22,810 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:46:22,810 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:46:22,810 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:46:22,811 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:46:22,811 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 14:46:22,811 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:22,811 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:46:22,811 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:46:22,811 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration4_Loop [2024-11-19 14:46:22,812 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:46:22,812 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:46:22,814 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:22,818 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:22,820 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:22,827 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:22,829 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:22,855 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:46:22,855 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 14:46:22,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:22,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:22,860 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) [2024-11-19 14:46:22,868 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 [2024-11-19 14:46:22,869 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 [2024-11-19 14:46:22,879 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:46:22,880 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:46:22,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:46:22,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:46:22,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:46:22,881 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:46:22,881 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:46:22,885 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:46:22,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-19 14:46:22,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:22,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:22,901 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) [2024-11-19 14:46:22,902 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 [2024-11-19 14:46:22,904 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 [2024-11-19 14:46:22,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:46:22,914 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:46:22,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:46:22,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:46:22,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:46:22,918 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:46:22,918 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:46:22,920 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:46:22,938 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-19 14:46:22,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:22,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:22,941 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) [2024-11-19 14:46:22,942 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 [2024-11-19 14:46:22,944 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 [2024-11-19 14:46:22,954 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:46:22,954 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:46:22,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:46:22,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:46:22,954 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:46:22,955 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:46:22,955 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:46:22,957 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 14:46:22,960 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-19 14:46:22,961 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-19 14:46:22,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:22,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:22,973 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) [2024-11-19 14:46:22,981 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 [2024-11-19 14:46:22,982 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 14:46:22,982 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 14:46:22,982 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 14:46:22,983 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~n~0#1 - 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2024-11-19 14:46:22,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-19 14:46:22,995 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 14:46:23,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:23,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:46:23,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:46:23,016 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:46:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:46:23,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:46:23,029 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:46:23,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:46:23,061 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 [2024-11-19 14:46:23,062 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2024-11-19 14:46:23,085 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 80 states and 98 transitions. Complement of second has 5 states. [2024-11-19 14:46:23,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-19 14:46:23,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2024-11-19 14:46:23,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2024-11-19 14:46:23,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 6 letters. Loop has 7 letters. [2024-11-19 14:46:23,087 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:46:23,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 13 letters. Loop has 7 letters. [2024-11-19 14:46:23,087 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:46:23,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 6 letters. Loop has 14 letters. [2024-11-19 14:46:23,087 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:46:23,087 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 80 states and 98 transitions. [2024-11-19 14:46:23,088 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2024-11-19 14:46:23,089 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 80 states to 64 states and 78 transitions. [2024-11-19 14:46:23,089 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2024-11-19 14:46:23,089 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2024-11-19 14:46:23,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 64 states and 78 transitions. [2024-11-19 14:46:23,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:46:23,089 INFO L218 hiAutomatonCegarLoop]: Abstraction has 64 states and 78 transitions. [2024-11-19 14:46:23,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states and 78 transitions. [2024-11-19 14:46:23,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 51. [2024-11-19 14:46:23,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 51 states have (on average 1.2156862745098038) internal successors, (62), 50 states have internal predecessors, (62), 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) [2024-11-19 14:46:23,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 62 transitions. [2024-11-19 14:46:23,092 INFO L240 hiAutomatonCegarLoop]: Abstraction has 51 states and 62 transitions. [2024-11-19 14:46:23,092 INFO L425 stractBuchiCegarLoop]: Abstraction has 51 states and 62 transitions. [2024-11-19 14:46:23,092 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-19 14:46:23,092 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 51 states and 62 transitions. [2024-11-19 14:46:23,093 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2024-11-19 14:46:23,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:46:23,093 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:46:23,093 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:46:23,093 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-19 14:46:23,094 INFO L745 eck$LassoCheckResult]: Stem: 521#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 501#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 502#L28 assume !!(main_~n~0#1 < 1000000); 496#L29 assume main_~k~0#1 == main_~n~0#1; 497#L29-1 main_~i~0#1 := 0; 498#L33-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 522#L34-3 assume !!(main_~j~0#1 < main_~n~0#1);havoc main_#t~nondet3#1; 526#L35 assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~k~0#1 := main_~j~0#1; 503#L36-3 [2024-11-19 14:46:23,094 INFO L747 eck$LassoCheckResult]: Loop: 503#L36-3 assume !!(main_~k~0#1 < main_~n~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 >= 2 * main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 504#L18 assume !(0 == __VERIFIER_assert_~cond#1); 517#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 514#L36-2 main_#t~post4#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 503#L36-3 [2024-11-19 14:46:23,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:23,094 INFO L85 PathProgramCache]: Analyzing trace with hash 177631345, now seen corresponding path program 1 times [2024-11-19 14:46:23,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:46:23,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946084304] [2024-11-19 14:46:23,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:46:23,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:46:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:46:23,100 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:46:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:46:23,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:46:23,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:23,105 INFO L85 PathProgramCache]: Analyzing trace with hash 2199665, now seen corresponding path program 1 times [2024-11-19 14:46:23,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:46:23,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580772685] [2024-11-19 14:46:23,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:46:23,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:46:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:46:23,111 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:46:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:46:23,114 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:46:23,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:23,115 INFO L85 PathProgramCache]: Analyzing trace with hash 2771169, now seen corresponding path program 1 times [2024-11-19 14:46:23,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:46:23,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865414877] [2024-11-19 14:46:23,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:46:23,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:46:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:46:23,121 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:46:23,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:46:23,128 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:46:23,150 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:46:23,151 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:46:23,151 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:46:23,151 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:46:23,151 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 14:46:23,151 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:23,151 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:46:23,151 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:46:23,151 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration5_Loop [2024-11-19 14:46:23,151 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:46:23,151 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:46:23,152 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:23,154 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:23,156 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:23,158 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:23,183 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:46:23,184 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 14:46:23,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:23,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:23,185 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) [2024-11-19 14:46:23,186 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 [2024-11-19 14:46:23,187 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:46:23,187 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:46:23,199 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:46:23,199 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4#1=0} Honda state: {ULTIMATE.start_main_#t~post4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 14:46:23,209 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-11-19 14:46:23,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:23,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:23,214 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) [2024-11-19 14:46:23,215 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 [2024-11-19 14:46:23,216 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:46:23,216 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:46:23,228 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:46:23,229 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 14:46:23,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-19 14:46:23,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:23,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:23,246 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) [2024-11-19 14:46:23,248 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 [2024-11-19 14:46:23,249 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:46:23,250 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:46:23,262 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:46:23,266 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 14:46:23,279 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-19 14:46:23,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:23,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:23,281 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:46:23,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-19 14:46:23,284 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:46:23,284 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:46:23,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-19 14:46:23,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:23,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:23,320 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:46:23,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-19 14:46:23,323 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 14:46:23,323 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:46:23,458 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-19 14:46:23,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-19 14:46:23,462 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:46:23,462 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:46:23,463 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:46:23,463 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:46:23,463 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 14:46:23,463 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:23,463 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:46:23,463 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:46:23,463 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration5_Loop [2024-11-19 14:46:23,463 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:46:23,463 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:46:23,463 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:23,466 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:23,472 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:23,474 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:23,493 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:46:23,494 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 14:46:23,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:23,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:23,496 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:46:23,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-19 14:46:23,498 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 [2024-11-19 14:46:23,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:46:23,508 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:46:23,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:46:23,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:46:23,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:46:23,508 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:46:23,508 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:46:23,510 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:46:23,521 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-19 14:46:23,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:23,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:23,524 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:46:23,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-19 14:46:23,526 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 [2024-11-19 14:46:23,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:46:23,536 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:46:23,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:46:23,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:46:23,536 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:46:23,537 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:46:23,537 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:46:23,540 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 14:46:23,544 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-19 14:46:23,544 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-19 14:46:23,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:23,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:23,546 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:46:23,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-19 14:46:23,548 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 14:46:23,548 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 14:46:23,548 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 14:46:23,548 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~k~0#1) = 1*ULTIMATE.start_main_~n~0#1 - 1*ULTIMATE.start_main_~k~0#1 Supporting invariants [] [2024-11-19 14:46:23,561 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-19 14:46:23,563 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 14:46:23,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:46:23,583 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:46:23,584 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:46:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:46:23,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:46:23,595 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:46:23,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:46:23,627 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 [2024-11-19 14:46:23,628 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 51 states and 62 transitions. cyclomatic complexity: 15 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:46:23,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-19 14:46:23,657 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 [2024-11-19 14:46:23,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-19 14:46:23,680 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 51 states and 62 transitions. cyclomatic complexity: 15. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 157 states and 192 transitions. Complement of second has 7 states. [2024-11-19 14:46:23,681 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 [2024-11-19 14:46:23,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:46:23,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2024-11-19 14:46:23,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 8 letters. Loop has 4 letters. [2024-11-19 14:46:23,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:46:23,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 12 letters. Loop has 4 letters. [2024-11-19 14:46:23,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:46:23,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 8 letters. Loop has 8 letters. [2024-11-19 14:46:23,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:46:23,683 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 157 states and 192 transitions. [2024-11-19 14:46:23,685 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 30 [2024-11-19 14:46:23,685 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 157 states to 114 states and 138 transitions. [2024-11-19 14:46:23,685 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2024-11-19 14:46:23,686 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2024-11-19 14:46:23,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 114 states and 138 transitions. [2024-11-19 14:46:23,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:46:23,686 INFO L218 hiAutomatonCegarLoop]: Abstraction has 114 states and 138 transitions. [2024-11-19 14:46:23,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states and 138 transitions. [2024-11-19 14:46:23,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 79. [2024-11-19 14:46:23,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 79 states have (on average 1.2025316455696202) internal successors, (95), 78 states have internal predecessors, (95), 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) [2024-11-19 14:46:23,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 95 transitions. [2024-11-19 14:46:23,690 INFO L240 hiAutomatonCegarLoop]: Abstraction has 79 states and 95 transitions. [2024-11-19 14:46:23,690 INFO L425 stractBuchiCegarLoop]: Abstraction has 79 states and 95 transitions. [2024-11-19 14:46:23,690 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-19 14:46:23,690 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states and 95 transitions. [2024-11-19 14:46:23,691 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 23 [2024-11-19 14:46:23,691 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:46:23,691 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:46:23,691 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:46:23,691 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-19 14:46:23,692 INFO L745 eck$LassoCheckResult]: Stem: 791#$Ultimate##0 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); 768#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 769#L28 assume !!(main_~n~0#1 < 1000000); 763#L29 assume main_~k~0#1 == main_~n~0#1; 764#L29-1 main_~i~0#1 := 0; 765#L33-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 792#L34-3 assume !!(main_~j~0#1 < main_~n~0#1);havoc main_#t~nondet3#1; 794#L35 assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~k~0#1 := main_~j~0#1; 824#L36-3 assume !!(main_~k~0#1 < main_~n~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 >= 2 * main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 827#L18 assume !(0 == __VERIFIER_assert_~cond#1); 831#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 829#L36-2 main_#t~post4#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 826#L36-3 assume !(main_~k~0#1 < main_~n~0#1); 818#L34-2 main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 816#L34-3 assume !!(main_~j~0#1 < main_~n~0#1);havoc main_#t~nondet3#1; 800#L35 assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~k~0#1 := main_~j~0#1; 781#L36-3 [2024-11-19 14:46:23,692 INFO L747 eck$LassoCheckResult]: Loop: 781#L36-3 assume !!(main_~k~0#1 < main_~n~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 >= 2 * main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 837#L18 assume !(0 == __VERIFIER_assert_~cond#1); 836#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 780#L36-2 main_#t~post4#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 781#L36-3 [2024-11-19 14:46:23,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:23,692 INFO L85 PathProgramCache]: Analyzing trace with hash -566482494, now seen corresponding path program 1 times [2024-11-19 14:46:23,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:46:23,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638809663] [2024-11-19 14:46:23,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:46:23,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:46:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:46:23,744 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:46:23,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:46:23,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638809663] [2024-11-19 14:46:23,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638809663] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:46:23,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855611151] [2024-11-19 14:46:23,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:46:23,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:46:23,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:23,747 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:46:23,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-19 14:46:23,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:46:23,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:46:23,785 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:46:23,799 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:46:23,800 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:46:23,819 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:46:23,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855611151] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:46:23,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:46:23,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2024-11-19 14:46:23,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474369611] [2024-11-19 14:46:23,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:46:23,820 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-19 14:46:23,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:23,821 INFO L85 PathProgramCache]: Analyzing trace with hash 2199665, now seen corresponding path program 2 times [2024-11-19 14:46:23,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:46:23,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214691214] [2024-11-19 14:46:23,821 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:46:23,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:46:23,824 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:46:23,824 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:46:23,825 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:46:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:46:23,827 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:46:23,845 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:46:23,846 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:46:23,846 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:46:23,846 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:46:23,846 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 14:46:23,846 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:23,846 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:46:23,846 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:46:23,846 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration6_Loop [2024-11-19 14:46:23,846 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:46:23,846 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:46:23,847 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:23,848 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:23,850 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:23,855 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:23,874 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:46:23,874 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 14:46:23,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:23,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:23,879 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:46:23,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-19 14:46:23,882 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:46:23,882 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:46:23,894 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:46:23,894 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 14:46:23,904 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-19 14:46:23,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:23,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:23,907 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:46:23,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-19 14:46:23,909 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:46:23,909 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:46:23,920 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:46:23,920 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 14:46:23,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-19 14:46:23,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:23,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:23,933 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:46:23,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-19 14:46:23,935 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:46:23,935 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:46:23,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-19 14:46:23,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:23,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:23,965 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:46:23,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-19 14:46:23,968 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 14:46:23,969 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:46:24,275 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-19 14:46:24,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-19 14:46:24,279 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:46:24,279 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:46:24,280 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:46:24,280 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:46:24,280 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 14:46:24,280 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:24,280 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:46:24,280 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:46:24,280 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration6_Loop [2024-11-19 14:46:24,280 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:46:24,280 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:46:24,280 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:24,283 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:24,287 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:24,289 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:24,314 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:46:24,314 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 14:46:24,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:24,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:24,320 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:46:24,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-19 14:46:24,323 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 [2024-11-19 14:46:24,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:46:24,333 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:46:24,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:46:24,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:46:24,333 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:46:24,334 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:46:24,334 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:46:24,337 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:46:24,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-19 14:46:24,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:24,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:24,354 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:46:24,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-19 14:46:24,362 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 [2024-11-19 14:46:24,372 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:46:24,372 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:46:24,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:46:24,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:46:24,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:46:24,373 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:46:24,373 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:46:24,374 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:46:24,385 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-11-19 14:46:24,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:24,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:24,387 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:46:24,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-19 14:46:24,389 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 [2024-11-19 14:46:24,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:46:24,399 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:46:24,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:46:24,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:46:24,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:46:24,400 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:46:24,401 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:46:24,409 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:46:24,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-11-19 14:46:24,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:24,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:24,434 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:46:24,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-19 14:46:24,436 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 [2024-11-19 14:46:24,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:46:24,447 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:46:24,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:46:24,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:46:24,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:46:24,448 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:46:24,448 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:46:24,450 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 14:46:24,452 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-19 14:46:24,452 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-19 14:46:24,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:24,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:24,456 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:46:24,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-19 14:46:24,462 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 14:46:24,462 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 14:46:24,462 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 14:46:24,463 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~k~0#1) = 1*ULTIMATE.start_main_~n~0#1 - 1*ULTIMATE.start_main_~k~0#1 Supporting invariants [] [2024-11-19 14:46:24,474 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-19 14:46:24,475 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 14:46:24,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:46:24,494 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:46:24,495 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:46:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:46:24,514 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:46:24,514 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:46:24,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:46:24,532 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 [2024-11-19 14:46:24,532 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79 states and 95 transitions. cyclomatic complexity: 24 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) [2024-11-19 14:46:24,558 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79 states and 95 transitions. cyclomatic complexity: 24. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) Result 148 states and 180 transitions. Complement of second has 7 states. [2024-11-19 14:46:24,559 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 [2024-11-19 14:46:24,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) [2024-11-19 14:46:24,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2024-11-19 14:46:24,560 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 16 letters. Loop has 4 letters. [2024-11-19 14:46:24,560 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:46:24,560 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-19 14:46:24,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:46:24,578 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:46:24,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:46:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:46:24,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:46:24,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:46:24,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:46:24,614 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-19 14:46:24,614 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79 states and 95 transitions. cyclomatic complexity: 24 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) [2024-11-19 14:46:24,634 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79 states and 95 transitions. cyclomatic complexity: 24. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) Result 148 states and 180 transitions. Complement of second has 7 states. [2024-11-19 14:46:24,634 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 [2024-11-19 14:46:24,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) [2024-11-19 14:46:24,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2024-11-19 14:46:24,635 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 16 letters. Loop has 4 letters. [2024-11-19 14:46:24,635 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:46:24,636 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-19 14:46:24,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:24,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:46:24,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:46:24,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:46:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:46:24,670 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:46:24,671 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:46:24,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:46:24,686 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-19 14:46:24,686 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79 states and 95 transitions. cyclomatic complexity: 24 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) [2024-11-19 14:46:24,708 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79 states and 95 transitions. cyclomatic complexity: 24. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) Result 121 states and 148 transitions. Complement of second has 6 states. [2024-11-19 14:46:24,709 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 [2024-11-19 14:46:24,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) [2024-11-19 14:46:24,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 37 transitions. [2024-11-19 14:46:24,709 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 37 transitions. Stem has 16 letters. Loop has 4 letters. [2024-11-19 14:46:24,710 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:46:24,710 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 37 transitions. Stem has 20 letters. Loop has 4 letters. [2024-11-19 14:46:24,710 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:46:24,710 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 37 transitions. Stem has 16 letters. Loop has 8 letters. [2024-11-19 14:46:24,710 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:46:24,710 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 121 states and 148 transitions. [2024-11-19 14:46:24,711 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2024-11-19 14:46:24,712 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 121 states to 55 states and 66 transitions. [2024-11-19 14:46:24,712 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2024-11-19 14:46:24,712 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2024-11-19 14:46:24,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 66 transitions. [2024-11-19 14:46:24,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:46:24,712 INFO L218 hiAutomatonCegarLoop]: Abstraction has 55 states and 66 transitions. [2024-11-19 14:46:24,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 66 transitions. [2024-11-19 14:46:24,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 33. [2024-11-19 14:46:24,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 32 states have internal predecessors, (39), 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) [2024-11-19 14:46:24,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2024-11-19 14:46:24,714 INFO L240 hiAutomatonCegarLoop]: Abstraction has 33 states and 39 transitions. [2024-11-19 14:46:24,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:46:24,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:46:24,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:46:24,714 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:46:24,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 14:46:24,756 INFO L93 Difference]: Finished difference Result 51 states and 58 transitions. [2024-11-19 14:46:24,756 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 58 transitions. [2024-11-19 14:46:24,756 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2024-11-19 14:46:24,757 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 49 states and 56 transitions. [2024-11-19 14:46:24,757 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-11-19 14:46:24,757 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-11-19 14:46:24,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 56 transitions. [2024-11-19 14:46:24,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:46:24,757 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 56 transitions. [2024-11-19 14:46:24,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 56 transitions. [2024-11-19 14:46:24,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2024-11-19 14:46:24,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 42 states have internal predecessors, (50), 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) [2024-11-19 14:46:24,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2024-11-19 14:46:24,759 INFO L240 hiAutomatonCegarLoop]: Abstraction has 43 states and 50 transitions. [2024-11-19 14:46:24,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:46:24,760 INFO L425 stractBuchiCegarLoop]: Abstraction has 43 states and 50 transitions. [2024-11-19 14:46:24,760 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-19 14:46:24,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 50 transitions. [2024-11-19 14:46:24,760 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-11-19 14:46:24,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:46:24,760 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:46:24,761 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:46:24,761 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:46:24,761 INFO L745 eck$LassoCheckResult]: Stem: 1681#$Ultimate##0 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); 1662#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 1663#L28 assume !!(main_~n~0#1 < 1000000); 1657#L29 assume main_~k~0#1 == main_~n~0#1; 1658#L29-1 main_~i~0#1 := 0; 1659#L33-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 1682#L34-3 assume !!(main_~j~0#1 < main_~n~0#1);havoc main_#t~nondet3#1; 1685#L35 assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 >= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1680#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1655#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 <= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1656#L18-6 assume !(0 == __VERIFIER_assert_~cond#1); 1670#L18-8 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1671#L34-2 main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1673#L34-3 assume !(main_~j~0#1 < main_~n~0#1); 1660#L33-2 main_#t~post6#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 1661#L33-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 1672#L34-3 [2024-11-19 14:46:24,761 INFO L747 eck$LassoCheckResult]: Loop: 1672#L34-3 assume !!(main_~j~0#1 < main_~n~0#1);havoc main_#t~nondet3#1; 1683#L35 assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 >= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1679#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1653#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 <= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1654#L18-6 assume !(0 == __VERIFIER_assert_~cond#1); 1668#L18-8 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1669#L34-2 main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1672#L34-3 [2024-11-19 14:46:24,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:24,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1449667301, now seen corresponding path program 1 times [2024-11-19 14:46:24,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:46:24,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250328439] [2024-11-19 14:46:24,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:46:24,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:46:24,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:46:24,822 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:46:24,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:46:24,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250328439] [2024-11-19 14:46:24,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250328439] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:46:24,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719655292] [2024-11-19 14:46:24,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:46:24,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:46:24,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:24,825 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:46:24,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-19 14:46:24,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:46:24,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 14:46:24,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:46:24,913 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:46:24,913 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:46:24,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:46:24,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719655292] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:46:24,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:46:24,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-11-19 14:46:24,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199908298] [2024-11-19 14:46:24,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:46:24,951 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-19 14:46:24,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:24,951 INFO L85 PathProgramCache]: Analyzing trace with hash 239540955, now seen corresponding path program 2 times [2024-11-19 14:46:24,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:46:24,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411008398] [2024-11-19 14:46:24,952 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:46:24,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:46:24,956 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:46:24,956 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:46:24,956 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:46:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:46:24,959 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:46:24,983 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:46:24,983 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:46:24,983 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:46:24,983 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:46:24,983 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 14:46:24,983 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:24,983 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:46:24,983 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:46:24,984 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration7_Loop [2024-11-19 14:46:24,984 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:46:24,984 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:46:24,984 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:24,986 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:24,987 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:24,989 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:24,993 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:25,015 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:46:25,015 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 14:46:25,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:25,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:25,016 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:46:25,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-19 14:46:25,018 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:46:25,018 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:46:25,030 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:46:25,030 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5#1=0} Honda state: {ULTIMATE.start_main_#t~post5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 14:46:25,040 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-11-19 14:46:25,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:25,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:25,042 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:46:25,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-19 14:46:25,043 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:46:25,043 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:46:25,055 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:46:25,055 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 14:46:25,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-11-19 14:46:25,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:25,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:25,066 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:46:25,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-19 14:46:25,068 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:46:25,068 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:46:25,081 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:46:25,081 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 14:46:25,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-11-19 14:46:25,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:25,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:25,093 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:46:25,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-19 14:46:25,094 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:46:25,095 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:46:25,117 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-11-19 14:46:25,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:25,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:25,118 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:46:25,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-19 14:46:25,120 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 14:46:25,120 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:46:25,328 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-19 14:46:25,332 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-11-19 14:46:25,333 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:46:25,333 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:46:25,333 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:46:25,333 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:46:25,333 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 14:46:25,333 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:25,333 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:46:25,333 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:46:25,333 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration7_Loop [2024-11-19 14:46:25,333 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:46:25,333 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:46:25,334 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:25,336 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:25,337 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:25,339 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:25,344 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:46:25,365 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:46:25,365 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 14:46:25,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:25,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:25,367 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:46:25,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-19 14:46:25,368 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 [2024-11-19 14:46:25,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:46:25,378 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:46:25,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:46:25,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:46:25,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:46:25,378 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:46:25,378 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:46:25,381 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:46:25,392 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-11-19 14:46:25,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:25,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:25,393 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:46:25,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-19 14:46:25,395 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 [2024-11-19 14:46:25,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:46:25,404 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:46:25,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:46:25,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:46:25,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:46:25,405 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:46:25,405 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:46:25,406 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:46:25,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-11-19 14:46:25,437 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2024-11-19 14:46:25,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:25,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:25,438 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2024-11-19 14:46:25,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-19 14:46:25,440 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 [2024-11-19 14:46:25,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:46:25,450 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:46:25,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:46:25,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:46:25,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:46:25,451 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:46:25,451 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:46:25,452 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:46:25,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2024-11-19 14:46:25,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:25,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:25,464 INFO L229 MonitoredProcess]: Starting monitored process 40 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) [2024-11-19 14:46:25,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-19 14:46:25,466 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 [2024-11-19 14:46:25,476 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:46:25,476 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:46:25,476 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:46:25,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:46:25,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:46:25,477 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:46:25,477 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:46:25,479 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 14:46:25,482 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-19 14:46:25,482 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-19 14:46:25,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:46:25,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:46:25,485 INFO L229 MonitoredProcess]: Starting monitored process 41 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) [2024-11-19 14:46:25,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-19 14:46:25,487 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 14:46:25,487 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 14:46:25,487 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 14:46:25,487 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2024-11-19 14:46:25,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-11-19 14:46:25,501 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 14:46:25,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:46:25,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:46:25,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:46:25,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:46:25,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:46:25,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:46:25,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:46:25,558 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 [2024-11-19 14:46:25,558 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 50 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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) [2024-11-19 14:46:25,575 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 50 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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) Result 77 states and 91 transitions. Complement of second has 5 states. [2024-11-19 14:46:25,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-19 14:46:25,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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) [2024-11-19 14:46:25,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2024-11-19 14:46:25,576 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 16 letters. Loop has 7 letters. [2024-11-19 14:46:25,576 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:46:25,576 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-19 14:46:25,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:46:25,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:46:25,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:46:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:46:25,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:46:25,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:46:25,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:46:25,633 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-19 14:46:25,633 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 50 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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) [2024-11-19 14:46:25,647 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 50 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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) Result 77 states and 91 transitions. Complement of second has 5 states. [2024-11-19 14:46:25,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-19 14:46:25,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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) [2024-11-19 14:46:25,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2024-11-19 14:46:25,648 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 16 letters. Loop has 7 letters. [2024-11-19 14:46:25,648 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:46:25,649 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-19 14:46:25,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:46:25,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:46:25,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:46:25,665 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:46:25,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:46:25,681 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:46:25,682 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:46:25,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:46:25,710 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-19 14:46:25,710 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 50 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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) [2024-11-19 14:46:25,735 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 50 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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) Result 75 states and 88 transitions. Complement of second has 4 states. [2024-11-19 14:46:25,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-19 14:46:25,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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) [2024-11-19 14:46:25,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2024-11-19 14:46:25,736 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 35 transitions. Stem has 16 letters. Loop has 7 letters. [2024-11-19 14:46:25,736 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:46:25,736 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 35 transitions. Stem has 23 letters. Loop has 7 letters. [2024-11-19 14:46:25,737 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:46:25,737 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 35 transitions. Stem has 16 letters. Loop has 14 letters. [2024-11-19 14:46:25,737 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:46:25,737 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 88 transitions. [2024-11-19 14:46:25,737 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-19 14:46:25,737 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 0 states and 0 transitions. [2024-11-19 14:46:25,737 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-19 14:46:25,737 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-19 14:46:25,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-19 14:46:25,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-19 14:46:25,738 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 14:46:25,738 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 14:46:25,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:46:25,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 14:46:25,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-19 14:46:25,738 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 15 states have internal predecessors, (38), 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) [2024-11-19 14:46:25,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 14:46:25,738 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-11-19 14:46:25,738 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-11-19 14:46:25,738 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-19 14:46:25,738 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-11-19 14:46:25,738 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-19 14:46:25,738 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-19 14:46:25,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-19 14:46:25,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-19 14:46:25,739 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 14:46:25,739 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 14:46:25,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 14:46:25,739 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 14:46:25,739 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-19 14:46:25,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-19 14:46:25,739 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-19 14:46:25,739 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-19 14:46:25,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 02:46:25 BoogieIcfgContainer [2024-11-19 14:46:25,745 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-19 14:46:25,745 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 14:46:25,745 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 14:46:25,745 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 14:46:25,745 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:46:21" (3/4) ... [2024-11-19 14:46:25,747 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-19 14:46:25,748 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 14:46:25,748 INFO L158 Benchmark]: Toolchain (without parser) took 5272.81ms. Allocated memory was 159.4MB in the beginning and 230.7MB in the end (delta: 71.3MB). Free memory was 86.6MB in the beginning and 158.7MB in the end (delta: -72.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 14:46:25,748 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 159.4MB. Free memory was 109.9MB in the beginning and 109.8MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 14:46:25,749 INFO L158 Benchmark]: CACSL2BoogieTranslator took 209.12ms. Allocated memory is still 159.4MB. Free memory was 86.5MB in the beginning and 74.2MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-19 14:46:25,749 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.00ms. Allocated memory is still 159.4MB. Free memory was 74.1MB in the beginning and 72.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 14:46:25,749 INFO L158 Benchmark]: Boogie Preprocessor took 42.04ms. Allocated memory is still 159.4MB. Free memory was 72.5MB in the beginning and 127.5MB in the end (delta: -55.1MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2024-11-19 14:46:25,749 INFO L158 Benchmark]: RCFGBuilder took 333.37ms. Allocated memory was 159.4MB in the beginning and 230.7MB in the end (delta: 71.3MB). Free memory was 127.5MB in the beginning and 191.4MB in the end (delta: -63.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-19 14:46:25,749 INFO L158 Benchmark]: BuchiAutomizer took 4657.25ms. Allocated memory is still 230.7MB. Free memory was 191.4MB in the beginning and 158.7MB in the end (delta: 32.7MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2024-11-19 14:46:25,749 INFO L158 Benchmark]: Witness Printer took 2.94ms. Allocated memory is still 230.7MB. Free memory is still 158.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 14:46:25,750 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 159.4MB. Free memory was 109.9MB in the beginning and 109.8MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 209.12ms. Allocated memory is still 159.4MB. Free memory was 86.5MB in the beginning and 74.2MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.00ms. Allocated memory is still 159.4MB. Free memory was 74.1MB in the beginning and 72.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.04ms. Allocated memory is still 159.4MB. Free memory was 72.5MB in the beginning and 127.5MB in the end (delta: -55.1MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * RCFGBuilder took 333.37ms. Allocated memory was 159.4MB in the beginning and 230.7MB in the end (delta: 71.3MB). Free memory was 127.5MB in the beginning and 191.4MB in the end (delta: -63.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 4657.25ms. Allocated memory is still 230.7MB. Free memory was 191.4MB in the beginning and 158.7MB in the end (delta: 32.7MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. * Witness Printer took 2.94ms. Allocated memory is still 230.7MB. Free memory is still 158.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (5 trivial, 3 deterministic, 2 nondeterministic). One deterministic module has affine ranking function (((long long) -1 * i) + n) and consists of 3 locations. One deterministic module has affine ranking function (((long long) -1 * j) + n) and consists of 3 locations. One deterministic module has affine ranking function (n + ((long long) -1 * k)) and consists of 4 locations. One nondeterministic module has affine ranking function (n + ((long long) -1 * k)) and consists of 4 locations. One nondeterministic module has affine ranking function (((long long) -1 * j) + n) and consists of 3 locations. 5 modules have a trivial ranking function, the largest among these consists of 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.6s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 3.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 101 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 298 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 289 mSDsluCounter, 387 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 133 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 269 IncrementalHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 254 mSDtfsCounter, 269 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq147 hnf94 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 49ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-19 14:46:25,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-11-19 14:46:25,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-19 14:46:26,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-19 14:46:26,369 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