./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive/MultCommutative-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/recursive/MultCommutative-2.c -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 ce29b37e076ab683230ebf17073db3b7759ea39570dd2ef64322b6d43bb636cd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 23:16:42,648 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 23:16:42,704 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-10 23:16:42,708 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 23:16:42,710 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 23:16:42,710 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-10 23:16:42,730 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 23:16:42,731 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 23:16:42,731 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 23:16:42,731 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 23:16:42,732 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 23:16:42,732 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 23:16:42,732 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 23:16:42,733 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 23:16:42,733 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-10 23:16:42,733 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-10 23:16:42,733 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-10 23:16:42,734 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-10 23:16:42,734 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-10 23:16:42,734 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-10 23:16:42,735 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 23:16:42,737 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-10 23:16:42,737 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 23:16:42,737 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 23:16:42,738 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 23:16:42,738 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 23:16:42,738 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-10 23:16:42,738 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-10 23:16:42,738 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-10 23:16:42,738 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 23:16:42,739 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 23:16:42,739 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 23:16:42,739 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 23:16:42,739 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-10 23:16:42,739 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 23:16:42,739 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 23:16:42,740 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 23:16:42,740 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 23:16:42,740 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 23:16:42,740 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-10 23:16:42,741 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce29b37e076ab683230ebf17073db3b7759ea39570dd2ef64322b6d43bb636cd [2024-11-10 23:16:42,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 23:16:42,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 23:16:42,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 23:16:42,973 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 23:16:42,974 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 23:16:42,975 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/MultCommutative-2.c [2024-11-10 23:16:44,248 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 23:16:44,401 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 23:16:44,401 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/MultCommutative-2.c [2024-11-10 23:16:44,408 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b27d1300/016d8ae94fc94667b6395d99c913802a/FLAGd382a66cf [2024-11-10 23:16:44,421 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b27d1300/016d8ae94fc94667b6395d99c913802a [2024-11-10 23:16:44,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 23:16:44,425 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 23:16:44,426 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 23:16:44,426 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 23:16:44,431 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 23:16:44,431 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:16:44" (1/1) ... [2024-11-10 23:16:44,432 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ee9c266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:44, skipping insertion in model container [2024-11-10 23:16:44,432 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:16:44" (1/1) ... [2024-11-10 23:16:44,450 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 23:16:44,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 23:16:44,660 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 23:16:44,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 23:16:44,688 INFO L204 MainTranslator]: Completed translation [2024-11-10 23:16:44,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:44 WrapperNode [2024-11-10 23:16:44,688 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 23:16:44,689 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 23:16:44,689 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 23:16:44,690 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 23:16:44,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:44" (1/1) ... [2024-11-10 23:16:44,701 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:44" (1/1) ... [2024-11-10 23:16:44,715 INFO L138 Inliner]: procedures = 13, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2024-11-10 23:16:44,715 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 23:16:44,716 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 23:16:44,716 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 23:16:44,716 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 23:16:44,723 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:44" (1/1) ... [2024-11-10 23:16:44,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:44" (1/1) ... [2024-11-10 23:16:44,727 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:44" (1/1) ... [2024-11-10 23:16:44,736 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]. [2024-11-10 23:16:44,736 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:44" (1/1) ... [2024-11-10 23:16:44,736 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:44" (1/1) ... [2024-11-10 23:16:44,738 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:44" (1/1) ... [2024-11-10 23:16:44,739 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:44" (1/1) ... [2024-11-10 23:16:44,740 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:44" (1/1) ... [2024-11-10 23:16:44,741 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:44" (1/1) ... [2024-11-10 23:16:44,742 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 23:16:44,742 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 23:16:44,742 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 23:16:44,742 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 23:16:44,743 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:44" (1/1) ... [2024-11-10 23:16:44,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:44,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:44,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:44,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-10 23:16:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 23:16:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2024-11-10 23:16:44,828 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2024-11-10 23:16:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 23:16:44,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 23:16:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 23:16:44,881 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 23:16:44,883 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 23:16:44,952 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L24: havoc #t~ret5; [2024-11-10 23:16:44,953 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L19: havoc #t~ret4; [2024-11-10 23:16:45,017 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-10 23:16:45,021 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 23:16:45,033 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 23:16:45,034 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 23:16:45,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:16:45 BoogieIcfgContainer [2024-11-10 23:16:45,035 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 23:16:45,036 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-10 23:16:45,036 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-10 23:16:45,039 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-10 23:16:45,039 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:16:45,040 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 11:16:44" (1/3) ... [2024-11-10 23:16:45,040 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@428269f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 11:16:45, skipping insertion in model container [2024-11-10 23:16:45,041 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:16:45,041 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:16:44" (2/3) ... [2024-11-10 23:16:45,043 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@428269f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 11:16:45, skipping insertion in model container [2024-11-10 23:16:45,043 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:16:45,043 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:16:45" (3/3) ... [2024-11-10 23:16:45,044 INFO L332 chiAutomizerObserver]: Analyzing ICFG MultCommutative-2.c [2024-11-10 23:16:45,095 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-10 23:16:45,096 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-10 23:16:45,096 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-10 23:16:45,096 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-10 23:16:45,096 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-10 23:16:45,098 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-10 23:16:45,098 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-10 23:16:45,098 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-10 23:16:45,101 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-10 23:16:45,117 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-10 23:16:45,118 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:16:45,118 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:16:45,123 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-10 23:16:45,123 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-10 23:16:45,123 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-10 23:16:45,123 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-10 23:16:45,125 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-10 23:16:45,126 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:16:45,126 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:16:45,127 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-10 23:16:45,127 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-10 23:16:45,131 INFO L745 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 18#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~res1~0#1, main_~res2~0#1;havoc main_#t~nondet6#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 9#L29true assume !(main_~m~0#1 < 0 || main_~m~0#1 > 46340);havoc main_#t~nondet7#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 12#L33true assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 21#L36-1true call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 8#multENTRYtrue [2024-11-10 23:16:45,132 INFO L747 eck$LassoCheckResult]: Loop: 8#multENTRYtrue ~n := #in~n;~m := #in~m; 3#L18true assume ~m < 0; 15#L19-2true call #t~ret4 := mult(~n, -~m);< 8#multENTRYtrue [2024-11-10 23:16:45,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:45,137 INFO L85 PathProgramCache]: Analyzing trace with hash 58180684, now seen corresponding path program 1 times [2024-11-10 23:16:45,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:16:45,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861687800] [2024-11-10 23:16:45,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:16:45,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:16:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:45,225 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:16:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:45,253 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:16:45,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:45,256 INFO L85 PathProgramCache]: Analyzing trace with hash 39684, now seen corresponding path program 1 times [2024-11-10 23:16:45,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:16:45,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744087551] [2024-11-10 23:16:45,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:16:45,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:16:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:45,262 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:16:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:45,266 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:16:45,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:45,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1906020647, now seen corresponding path program 1 times [2024-11-10 23:16:45,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:16:45,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747167559] [2024-11-10 23:16:45,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:16:45,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:16:45,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:16:45,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:16:45,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 23:16:45,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747167559] [2024-11-10 23:16:45,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747167559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 23:16:45,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 23:16:45,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 23:16:45,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140733327] [2024-11-10 23:16:45,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 23:16:45,488 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 23:16:45,489 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 23:16:45,489 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 23:16:45,489 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 23:16:45,489 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-10 23:16:45,489 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:45,489 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 23:16:45,489 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 23:16:45,489 INFO L132 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration1_Loop [2024-11-10 23:16:45,489 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 23:16:45,490 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 23:16:45,504 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:45,516 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:45,519 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:45,524 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:45,527 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:45,533 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:45,536 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:45,598 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 23:16:45,598 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-10 23:16:45,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:45,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:45,602 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:45,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-10 23:16:45,605 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:16:45,605 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:45,620 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 23:16:45,621 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 23:16:45,632 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 [2024-11-10 23:16:45,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:45,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:45,634 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:45,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-10 23:16:45,638 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:16:45,638 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:45,649 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 23:16:45,650 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret5=0} Honda state: {mult_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 23:16:45,664 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 [2024-11-10 23:16:45,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:45,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:45,666 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:45,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-10 23:16:45,667 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:16:45,667 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:45,679 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 23:16:45,679 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 23:16:45,690 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 [2024-11-10 23:16:45,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:45,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:45,691 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:45,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-10 23:16:45,693 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:16:45,693 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:45,704 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 23:16:45,704 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret4=0} Honda state: {mult_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 23:16:45,714 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 [2024-11-10 23:16:45,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:45,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:45,716 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:45,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-10 23:16:45,723 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:16:45,724 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:45,735 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 23:16:45,735 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 23:16:45,746 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 [2024-11-10 23:16:45,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:45,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:45,748 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:45,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-10 23:16:45,751 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:16:45,752 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:45,764 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 23:16:45,764 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 23:16:45,774 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 [2024-11-10 23:16:45,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:45,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:45,776 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:45,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-10 23:16:45,778 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:16:45,778 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:45,799 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 [2024-11-10 23:16:45,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:45,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:45,800 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:45,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-10 23:16:45,802 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 23:16:45,802 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:45,831 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-10 23:16:45,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-10 23:16:45,836 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 23:16:45,836 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 23:16:45,836 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 23:16:45,836 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 23:16:45,836 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-10 23:16:45,836 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:45,836 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 23:16:45,837 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 23:16:45,837 INFO L132 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration1_Loop [2024-11-10 23:16:45,837 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 23:16:45,837 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 23:16:45,838 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:45,840 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:45,842 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:45,844 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:45,846 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:45,852 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:45,855 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:45,891 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 23:16:45,895 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-10 23:16:45,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:45,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:45,898 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:45,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-10 23:16:45,905 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 23:16:45,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:16:45,917 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:16:45,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:16:45,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:16:45,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:16:45,919 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:16:45,920 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:16:45,922 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 23:16:45,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-10 23:16:45,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:45,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:45,934 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:45,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-10 23:16:45,936 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 23:16:45,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:16:45,946 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:16:45,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:16:45,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:16:45,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:16:45,947 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:16:45,947 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:16:45,948 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 23:16:45,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-10 23:16:45,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:45,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:45,960 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:45,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-10 23:16:45,961 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 23:16:45,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:16:45,970 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:16:45,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:16:45,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:16:45,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:16:45,971 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:16:45,971 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:16:45,972 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 23:16:45,982 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-10 23:16:45,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:45,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:45,984 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:45,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-10 23:16:45,985 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 23:16:45,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:16:45,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:16:45,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:16:45,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:16:45,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:16:45,996 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:16:45,996 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:16:45,997 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 23:16:46,007 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-10 23:16:46,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:46,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:46,008 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:46,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-10 23:16:46,010 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 23:16:46,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:16:46,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:16:46,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:16:46,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:16:46,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:16:46,021 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:16:46,021 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:16:46,023 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 23:16:46,034 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-10 23:16:46,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:46,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:46,035 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) [2024-11-10 23:16:46,036 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 [2024-11-10 23:16:46,037 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 23:16:46,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:16:46,047 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:16:46,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:16:46,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:16:46,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:16:46,048 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:16:46,048 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:16:46,050 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 23:16:46,060 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 [2024-11-10 23:16:46,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:46,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:46,065 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) [2024-11-10 23:16:46,066 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 [2024-11-10 23:16:46,067 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 23:16:46,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:16:46,077 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:16:46,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:16:46,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:16:46,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:16:46,080 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:16:46,080 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:16:46,082 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-10 23:16:46,084 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-10 23:16:46,084 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-10 23:16:46,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:46,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:46,106 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) [2024-11-10 23:16:46,107 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 [2024-11-10 23:16:46,108 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-10 23:16:46,109 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-10 23:16:46,109 INFO L474 LassoAnalysis]: Proved termination. [2024-11-10 23:16:46,109 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2024-11-10 23:16:46,119 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-10 23:16:46,122 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-10 23:16:46,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:46,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:16:46,166 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 23:16:46,167 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 23:16:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:16:46,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-10 23:16:46,193 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 23:16:46,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:16:46,275 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-10 23:16:46,280 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-10 23:16:46,282 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 23:16:46,369 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4). Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 52 states and 67 transitions. Complement of second has 16 states. [2024-11-10 23:16:46,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-10 23:16:46,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 23:16:46,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2024-11-10 23:16:46,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 5 letters. Loop has 3 letters. [2024-11-10 23:16:46,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:16:46,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 8 letters. Loop has 3 letters. [2024-11-10 23:16:46,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:16:46,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 5 letters. Loop has 6 letters. [2024-11-10 23:16:46,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:16:46,383 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 67 transitions. [2024-11-10 23:16:46,388 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-10 23:16:46,396 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 32 states and 45 transitions. [2024-11-10 23:16:46,397 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2024-11-10 23:16:46,397 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2024-11-10 23:16:46,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 45 transitions. [2024-11-10 23:16:46,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-10 23:16:46,399 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 45 transitions. [2024-11-10 23:16:46,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 45 transitions. [2024-11-10 23:16:46,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28. [2024-11-10 23:16:46,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-10 23:16:46,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2024-11-10 23:16:46,425 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 37 transitions. [2024-11-10 23:16:46,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 23:16:46,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 23:16:46,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 23:16:46,429 INFO L87 Difference]: Start difference. First operand 28 states and 37 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 23:16:46,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 23:16:46,482 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2024-11-10 23:16:46,483 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2024-11-10 23:16:46,484 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-10 23:16:46,484 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 27 states and 34 transitions. [2024-11-10 23:16:46,485 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2024-11-10 23:16:46,485 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2024-11-10 23:16:46,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 34 transitions. [2024-11-10 23:16:46,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 23:16:46,485 INFO L218 hiAutomatonCegarLoop]: Abstraction has 27 states and 34 transitions. [2024-11-10 23:16:46,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 34 transitions. [2024-11-10 23:16:46,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2024-11-10 23:16:46,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-10 23:16:46,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2024-11-10 23:16:46,488 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 28 transitions. [2024-11-10 23:16:46,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 23:16:46,489 INFO L425 stractBuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2024-11-10 23:16:46,489 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-10 23:16:46,489 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 28 transitions. [2024-11-10 23:16:46,490 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-10 23:16:46,490 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:16:46,490 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:16:46,491 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:16:46,491 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-10 23:16:46,491 INFO L745 eck$LassoCheckResult]: Stem: 202#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 203#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~res1~0#1, main_~res2~0#1;havoc main_#t~nondet6#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 208#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 46340);havoc main_#t~nondet7#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 209#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 200#L36-1 call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 206#multENTRY ~n := #in~n;~m := #in~m; 199#L18 assume !(~m < 0); 201#L21 assume !(0 == ~m); 210#L24-2 call #t~ret5 := mult(~n, ~m - 1);< 216#multENTRY [2024-11-10 23:16:46,491 INFO L747 eck$LassoCheckResult]: Loop: 216#multENTRY ~n := #in~n;~m := #in~m; 220#L18 assume ~m < 0; 213#L19-2 call #t~ret4 := mult(~n, -~m);< 216#multENTRY [2024-11-10 23:16:46,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:46,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1042902120, now seen corresponding path program 1 times [2024-11-10 23:16:46,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:16:46,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033850957] [2024-11-10 23:16:46,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:16:46,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:16:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:46,509 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:16:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:46,524 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:16:46,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:46,526 INFO L85 PathProgramCache]: Analyzing trace with hash 39684, now seen corresponding path program 2 times [2024-11-10 23:16:46,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:16:46,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818695526] [2024-11-10 23:16:46,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:16:46,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:16:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:46,530 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:16:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:46,533 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:16:46,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:46,533 INFO L85 PathProgramCache]: Analyzing trace with hash -696352451, now seen corresponding path program 1 times [2024-11-10 23:16:46,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:16:46,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207595836] [2024-11-10 23:16:46,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:16:46,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:16:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:16:46,599 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:16:46,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 23:16:46,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207595836] [2024-11-10 23:16:46,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207595836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 23:16:46,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 23:16:46,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 23:16:46,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035383452] [2024-11-10 23:16:46,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 23:16:46,650 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 23:16:46,650 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 23:16:46,650 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 23:16:46,650 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 23:16:46,650 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-10 23:16:46,650 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:46,651 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 23:16:46,651 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 23:16:46,651 INFO L132 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration2_Loop [2024-11-10 23:16:46,651 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 23:16:46,651 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 23:16:46,652 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:46,653 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:46,655 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:46,657 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:46,661 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:46,663 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:46,666 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:46,699 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 23:16:46,699 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-10 23:16:46,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:46,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:46,700 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) [2024-11-10 23:16:46,701 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 [2024-11-10 23:16:46,706 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:16:46,706 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:46,720 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 23:16:46,720 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 23:16:46,732 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 [2024-11-10 23:16:46,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:46,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:46,734 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) [2024-11-10 23:16:46,737 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 [2024-11-10 23:16:46,738 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:16:46,738 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:46,749 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 23:16:46,749 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 23:16:46,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-10 23:16:46,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:46,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:46,766 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) [2024-11-10 23:16:46,768 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 [2024-11-10 23:16:46,769 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:16:46,769 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:46,781 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 23:16:46,781 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 23:16:46,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-10 23:16:46,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:46,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:46,794 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:46,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-10 23:16:46,796 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:16:46,796 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:46,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-11-10 23:16:46,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:46,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:46,824 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) [2024-11-10 23:16:46,825 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 [2024-11-10 23:16:46,826 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 23:16:46,826 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:46,885 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-10 23:16:46,890 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 [2024-11-10 23:16:46,890 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 23:16:46,890 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 23:16:46,890 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 23:16:46,890 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 23:16:46,890 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-10 23:16:46,890 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:46,890 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 23:16:46,890 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 23:16:46,890 INFO L132 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration2_Loop [2024-11-10 23:16:46,890 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 23:16:46,890 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 23:16:46,891 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:46,893 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:46,896 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:46,898 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:46,903 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:46,905 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:46,912 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:46,944 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 23:16:46,945 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-10 23:16:46,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:46,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:46,946 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) [2024-11-10 23:16:46,947 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 [2024-11-10 23:16:46,948 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 23:16:46,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:16:46,958 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:16:46,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:16:46,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:16:46,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:16:46,959 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:16:46,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:16:46,960 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 23:16:46,971 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-10 23:16:46,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:46,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:46,973 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) [2024-11-10 23:16:46,974 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 [2024-11-10 23:16:46,974 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 23:16:46,984 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:16:46,984 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:16:46,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:16:46,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:16:46,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:16:46,985 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:16:46,985 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:16:46,986 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 23:16:46,996 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-10 23:16:46,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:46,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:46,999 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) [2024-11-10 23:16:47,000 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 [2024-11-10 23:16:47,000 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 23:16:47,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:16:47,011 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:16:47,011 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:16:47,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:16:47,011 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:16:47,011 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:16:47,011 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:16:47,013 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 23:16:47,023 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-10 23:16:47,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:47,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:47,025 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) [2024-11-10 23:16:47,026 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 [2024-11-10 23:16:47,027 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 23:16:47,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:16:47,037 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:16:47,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:16:47,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:16:47,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:16:47,038 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:16:47,038 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:16:47,039 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-10 23:16:47,041 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-10 23:16:47,041 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-10 23:16:47,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:47,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:47,043 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) [2024-11-10 23:16:47,044 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 [2024-11-10 23:16:47,046 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-10 23:16:47,046 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-10 23:16:47,046 INFO L474 LassoAnalysis]: Proved termination. [2024-11-10 23:16:47,046 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2024-11-10 23:16:47,057 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 [2024-11-10 23:16:47,057 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-10 23:16:47,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:16:47,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 23:16:47,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 23:16:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:16:47,104 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-10 23:16:47,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 23:16:47,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:16:47,133 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-10 23:16:47,133 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 6 Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 23:16:47,200 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 6. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 73 states and 92 transitions. Complement of second has 19 states. [2024-11-10 23:16:47,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2024-11-10 23:16:47,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 23:16:47,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 28 transitions. [2024-11-10 23:16:47,203 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 9 letters. Loop has 3 letters. [2024-11-10 23:16:47,203 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:16:47,203 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 12 letters. Loop has 3 letters. [2024-11-10 23:16:47,203 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:16:47,203 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 9 letters. Loop has 6 letters. [2024-11-10 23:16:47,203 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:16:47,204 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 92 transitions. [2024-11-10 23:16:47,208 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-11-10 23:16:47,209 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 51 states and 66 transitions. [2024-11-10 23:16:47,209 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2024-11-10 23:16:47,209 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2024-11-10 23:16:47,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 66 transitions. [2024-11-10 23:16:47,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-10 23:16:47,210 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51 states and 66 transitions. [2024-11-10 23:16:47,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 66 transitions. [2024-11-10 23:16:47,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2024-11-10 23:16:47,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 33 states have internal predecessors, (38), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-10 23:16:47,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2024-11-10 23:16:47,217 INFO L240 hiAutomatonCegarLoop]: Abstraction has 44 states and 55 transitions. [2024-11-10 23:16:47,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 23:16:47,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 23:16:47,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 23:16:47,218 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. Second operand has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 23:16:47,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 23:16:47,261 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2024-11-10 23:16:47,262 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 58 transitions. [2024-11-10 23:16:47,263 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2024-11-10 23:16:47,263 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 42 states and 48 transitions. [2024-11-10 23:16:47,263 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2024-11-10 23:16:47,263 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2024-11-10 23:16:47,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 48 transitions. [2024-11-10 23:16:47,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 23:16:47,264 INFO L218 hiAutomatonCegarLoop]: Abstraction has 42 states and 48 transitions. [2024-11-10 23:16:47,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 48 transitions. [2024-11-10 23:16:47,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-11-10 23:16:47,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 32 states have internal predecessors, (33), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-10 23:16:47,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2024-11-10 23:16:47,269 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 48 transitions. [2024-11-10 23:16:47,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 23:16:47,271 INFO L425 stractBuchiCegarLoop]: Abstraction has 42 states and 48 transitions. [2024-11-10 23:16:47,272 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-10 23:16:47,272 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 48 transitions. [2024-11-10 23:16:47,272 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2024-11-10 23:16:47,272 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:16:47,272 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:16:47,273 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:16:47,273 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-10 23:16:47,273 INFO L745 eck$LassoCheckResult]: Stem: 476#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 477#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~res1~0#1, main_~res2~0#1;havoc main_#t~nondet6#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 489#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 46340);havoc main_#t~nondet7#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 490#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 479#L36-1 call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 493#multENTRY ~n := #in~n;~m := #in~m; 504#L18 assume !(~m < 0); 502#L21 assume 0 == ~m;#res := 0; 500#multFINAL assume true; 478#multEXIT >#40#return; 480#L36 main_~res1~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1; 491#L37-1 call main_#t~ret9#1 := mult(main_~n~0#1, main_~m~0#1);< 511#multENTRY [2024-11-10 23:16:47,273 INFO L747 eck$LassoCheckResult]: Loop: 511#multENTRY ~n := #in~n;~m := #in~m; 510#L18 assume ~m < 0; 508#L19-2 call #t~ret4 := mult(~n, -~m);< 511#multENTRY [2024-11-10 23:16:47,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:47,274 INFO L85 PathProgramCache]: Analyzing trace with hash -697902170, now seen corresponding path program 1 times [2024-11-10 23:16:47,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:16:47,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561156195] [2024-11-10 23:16:47,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:16:47,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:16:47,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:47,290 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:16:47,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:47,296 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:16:47,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:47,296 INFO L85 PathProgramCache]: Analyzing trace with hash 39684, now seen corresponding path program 3 times [2024-11-10 23:16:47,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:16:47,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547146477] [2024-11-10 23:16:47,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:16:47,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:16:47,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:47,299 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:16:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:47,302 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:16:47,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:47,302 INFO L85 PathProgramCache]: Analyzing trace with hash 733143359, now seen corresponding path program 1 times [2024-11-10 23:16:47,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:16:47,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013470132] [2024-11-10 23:16:47,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:16:47,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:16:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:16:47,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 23:16:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:16:47,380 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:16:47,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 23:16:47,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013470132] [2024-11-10 23:16:47,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013470132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 23:16:47,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 23:16:47,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 23:16:47,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718975294] [2024-11-10 23:16:47,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 23:16:47,422 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 23:16:47,422 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 23:16:47,422 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 23:16:47,423 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 23:16:47,423 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-10 23:16:47,423 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:47,423 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 23:16:47,423 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 23:16:47,423 INFO L132 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration3_Loop [2024-11-10 23:16:47,423 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 23:16:47,423 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 23:16:47,424 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:47,426 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:47,428 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:47,430 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:47,438 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:47,440 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:47,441 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:47,478 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 23:16:47,481 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-10 23:16:47,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:47,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:47,484 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) [2024-11-10 23:16:47,486 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 [2024-11-10 23:16:47,487 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:16:47,488 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:47,506 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 23:16:47,506 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret4=0} Honda state: {mult_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 23:16:47,518 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 [2024-11-10 23:16:47,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:47,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:47,520 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) [2024-11-10 23:16:47,522 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 [2024-11-10 23:16:47,523 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:16:47,524 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:47,535 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 23:16:47,535 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret5=0} Honda state: {mult_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 23:16:47,545 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 [2024-11-10 23:16:47,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:47,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:47,547 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) [2024-11-10 23:16:47,548 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 [2024-11-10 23:16:47,551 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:16:47,553 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:47,568 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 23:16:47,568 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 23:16:47,579 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 [2024-11-10 23:16:47,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:47,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:47,581 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:47,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-10 23:16:47,583 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:16:47,583 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:47,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-11-10 23:16:47,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:47,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:47,609 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) [2024-11-10 23:16:47,635 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 [2024-11-10 23:16:47,635 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 23:16:47,636 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:47,652 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 [2024-11-10 23:16:47,688 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-10 23:16:47,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-11-10 23:16:47,692 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 23:16:47,692 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 23:16:47,692 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 23:16:47,692 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 23:16:47,692 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-10 23:16:47,692 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:47,692 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 23:16:47,692 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 23:16:47,692 INFO L132 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration3_Loop [2024-11-10 23:16:47,692 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 23:16:47,692 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 23:16:47,693 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:47,695 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:47,696 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:47,698 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:47,700 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:47,703 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:47,709 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:47,737 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 23:16:47,737 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-10 23:16:47,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:47,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:47,739 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) [2024-11-10 23:16:47,740 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 [2024-11-10 23:16:47,740 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 23:16:47,750 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:16:47,750 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:16:47,750 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:16:47,750 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:16:47,750 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:16:47,750 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:16:47,751 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:16:47,752 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 23:16:47,762 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-11-10 23:16:47,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:47,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:47,763 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) [2024-11-10 23:16:47,765 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 [2024-11-10 23:16:47,766 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 23:16:47,775 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:16:47,776 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:16:47,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:16:47,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:16:47,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:16:47,776 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:16:47,776 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:16:47,777 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 23:16:47,788 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 [2024-11-10 23:16:47,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:47,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:47,789 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) [2024-11-10 23:16:47,790 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 [2024-11-10 23:16:47,791 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 23:16:47,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:16:47,800 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:16:47,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:16:47,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:16:47,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:16:47,801 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:16:47,801 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:16:47,803 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 23:16:47,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-11-10 23:16:47,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:47,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:47,815 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) [2024-11-10 23:16:47,816 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 [2024-11-10 23:16:47,816 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 23:16:47,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:16:47,826 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:16:47,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:16:47,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:16:47,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:16:47,826 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:16:47,826 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:16:47,827 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 23:16:47,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-11-10 23:16:47,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:47,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:47,839 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) [2024-11-10 23:16:47,840 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 [2024-11-10 23:16:47,840 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 23:16:47,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:16:47,850 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:16:47,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:16:47,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:16:47,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:16:47,851 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:16:47,851 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:16:47,852 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-10 23:16:47,853 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-10 23:16:47,853 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-10 23:16:47,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:47,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:47,855 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) [2024-11-10 23:16:47,856 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 [2024-11-10 23:16:47,857 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-10 23:16:47,857 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-10 23:16:47,857 INFO L474 LassoAnalysis]: Proved termination. [2024-11-10 23:16:47,857 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2024-11-10 23:16:47,870 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 [2024-11-10 23:16:47,871 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-10 23:16:47,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:47,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:16:47,902 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 23:16:47,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 23:16:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:16:47,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-10 23:16:47,974 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 23:16:47,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:16:47,993 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2024-11-10 23:16:47,993 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 48 transitions. cyclomatic complexity: 9 Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-10 23:16:48,057 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 48 transitions. cyclomatic complexity: 9. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 82 states and 91 transitions. Complement of second has 14 states. [2024-11-10 23:16:48,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-10 23:16:48,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-10 23:16:48,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2024-11-10 23:16:48,060 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 12 letters. Loop has 3 letters. [2024-11-10 23:16:48,060 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:16:48,060 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 15 letters. Loop has 3 letters. [2024-11-10 23:16:48,061 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:16:48,061 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 12 letters. Loop has 6 letters. [2024-11-10 23:16:48,061 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:16:48,061 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 91 transitions. [2024-11-10 23:16:48,062 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-11-10 23:16:48,063 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 63 states and 71 transitions. [2024-11-10 23:16:48,063 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2024-11-10 23:16:48,063 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2024-11-10 23:16:48,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 71 transitions. [2024-11-10 23:16:48,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-10 23:16:48,063 INFO L218 hiAutomatonCegarLoop]: Abstraction has 63 states and 71 transitions. [2024-11-10 23:16:48,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 71 transitions. [2024-11-10 23:16:48,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 36. [2024-11-10 23:16:48,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 6 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 23:16:48,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2024-11-10 23:16:48,069 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 42 transitions. [2024-11-10 23:16:48,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 23:16:48,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 23:16:48,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 23:16:48,069 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-10 23:16:48,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 23:16:48,089 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2024-11-10 23:16:48,089 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 43 transitions. [2024-11-10 23:16:48,089 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-11-10 23:16:48,090 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 38 states and 42 transitions. [2024-11-10 23:16:48,090 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2024-11-10 23:16:48,090 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2024-11-10 23:16:48,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 42 transitions. [2024-11-10 23:16:48,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 23:16:48,090 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 42 transitions. [2024-11-10 23:16:48,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 42 transitions. [2024-11-10 23:16:48,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2024-11-10 23:16:48,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 23:16:48,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2024-11-10 23:16:48,093 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32 states and 36 transitions. [2024-11-10 23:16:48,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 23:16:48,096 INFO L425 stractBuchiCegarLoop]: Abstraction has 32 states and 36 transitions. [2024-11-10 23:16:48,096 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-10 23:16:48,096 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 36 transitions. [2024-11-10 23:16:48,097 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-11-10 23:16:48,097 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:16:48,097 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:16:48,098 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:16:48,098 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-10 23:16:48,098 INFO L745 eck$LassoCheckResult]: Stem: 767#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 768#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~res1~0#1, main_~res2~0#1;havoc main_#t~nondet6#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 773#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 46340);havoc main_#t~nondet7#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 774#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 776#L36-1 call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 778#multENTRY ~n := #in~n;~m := #in~m; 790#L18 assume !(~m < 0); 785#L21 assume 0 == ~m;#res := 0; 783#multFINAL assume true; 782#multEXIT >#40#return; 777#L36 main_~res1~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1; 766#L37-1 call main_#t~ret9#1 := mult(main_~n~0#1, main_~m~0#1);< 772#multENTRY [2024-11-10 23:16:48,098 INFO L747 eck$LassoCheckResult]: Loop: 772#multENTRY ~n := #in~n;~m := #in~m; 763#L18 assume !(~m < 0); 765#L21 assume !(0 == ~m); 764#L24-2 call #t~ret5 := mult(~n, ~m - 1);< 772#multENTRY [2024-11-10 23:16:48,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:48,098 INFO L85 PathProgramCache]: Analyzing trace with hash -697902170, now seen corresponding path program 2 times [2024-11-10 23:16:48,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:16:48,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155402252] [2024-11-10 23:16:48,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:16:48,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:16:48,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:48,105 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:16:48,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:48,110 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:16:48,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:48,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1230237, now seen corresponding path program 1 times [2024-11-10 23:16:48,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:16:48,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618214127] [2024-11-10 23:16:48,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:16:48,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:16:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:48,113 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:16:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:48,114 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:16:48,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:48,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1252607682, now seen corresponding path program 1 times [2024-11-10 23:16:48,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:16:48,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371927742] [2024-11-10 23:16:48,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:16:48,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:16:48,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:48,120 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:16:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:48,125 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:16:48,166 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 23:16:48,166 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 23:16:48,166 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 23:16:48,166 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 23:16:48,166 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-10 23:16:48,166 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:48,166 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 23:16:48,166 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 23:16:48,166 INFO L132 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration4_Loop [2024-11-10 23:16:48,166 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 23:16:48,166 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 23:16:48,167 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,169 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,170 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,176 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,178 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,179 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,181 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,212 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 23:16:48,212 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-10 23:16:48,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:48,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:48,214 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) [2024-11-10 23:16:48,219 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 [2024-11-10 23:16:48,219 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:16:48,222 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:48,234 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 23:16:48,234 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 23:16:48,244 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-11-10 23:16:48,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:48,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:48,246 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) [2024-11-10 23:16:48,248 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 [2024-11-10 23:16:48,248 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:16:48,249 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:48,259 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 23:16:48,259 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret4=0} Honda state: {mult_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 23:16:48,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-11-10 23:16:48,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:48,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:48,273 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) [2024-11-10 23:16:48,274 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 [2024-11-10 23:16:48,275 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:16:48,275 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:48,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2024-11-10 23:16:48,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:48,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:48,304 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:48,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-11-10 23:16:48,307 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 23:16:48,307 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:48,334 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-10 23:16:48,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2024-11-10 23:16:48,339 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 23:16:48,339 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 23:16:48,339 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 23:16:48,339 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 23:16:48,339 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-10 23:16:48,339 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:48,339 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 23:16:48,339 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 23:16:48,339 INFO L132 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration4_Loop [2024-11-10 23:16:48,339 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 23:16:48,339 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 23:16:48,340 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,345 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,346 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,356 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,358 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,359 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,361 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,390 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 23:16:48,390 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-10 23:16:48,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:48,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:48,392 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:48,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-11-10 23:16:48,393 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 23:16:48,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:16:48,403 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:16:48,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:16:48,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:16:48,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:16:48,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:16:48,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:16:48,405 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 23:16:48,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2024-11-10 23:16:48,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:48,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:48,417 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:48,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-11-10 23:16:48,418 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 23:16:48,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:16:48,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:16:48,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:16:48,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:16:48,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:16:48,428 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:16:48,428 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:16:48,429 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 23:16:48,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2024-11-10 23:16:48,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:48,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:48,442 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:48,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-11-10 23:16:48,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 23:16:48,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:16:48,453 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:16:48,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:16:48,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:16:48,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:16:48,454 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:16:48,454 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:16:48,456 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-10 23:16:48,457 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-10 23:16:48,457 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-10 23:16:48,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:48,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:48,459 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:48,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-11-10 23:16:48,460 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-10 23:16:48,460 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-10 23:16:48,460 INFO L474 LassoAnalysis]: Proved termination. [2024-11-10 23:16:48,460 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = 1*mult_#in~m Supporting invariants [] [2024-11-10 23:16:48,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2024-11-10 23:16:48,471 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-10 23:16:48,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:48,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:16:48,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 23:16:48,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 23:16:48,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:16:48,565 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 23:16:48,565 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 23:16:48,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:16:48,605 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2024-11-10 23:16:48,605 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 36 transitions. cyclomatic complexity: 6 Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-10 23:16:48,675 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 36 transitions. cyclomatic complexity: 6. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 42 states and 46 transitions. Complement of second has 17 states. [2024-11-10 23:16:48,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-10 23:16:48,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-10 23:16:48,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2024-11-10 23:16:48,677 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 12 letters. Loop has 4 letters. [2024-11-10 23:16:48,679 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:16:48,679 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 16 letters. Loop has 4 letters. [2024-11-10 23:16:48,680 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:16:48,680 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 12 letters. Loop has 8 letters. [2024-11-10 23:16:48,680 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:16:48,680 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 46 transitions. [2024-11-10 23:16:48,680 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-10 23:16:48,681 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 16 states and 16 transitions. [2024-11-10 23:16:48,681 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-11-10 23:16:48,681 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2024-11-10 23:16:48,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 16 transitions. [2024-11-10 23:16:48,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 23:16:48,681 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 16 transitions. [2024-11-10 23:16:48,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 16 transitions. [2024-11-10 23:16:48,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 9. [2024-11-10 23:16:48,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 23:16:48,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-10 23:16:48,682 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-10 23:16:48,682 INFO L425 stractBuchiCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-10 23:16:48,682 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-10 23:16:48,682 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 9 transitions. [2024-11-10 23:16:48,682 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-10 23:16:48,682 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:16:48,684 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:16:48,684 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-10 23:16:48,684 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-10 23:16:48,685 INFO L745 eck$LassoCheckResult]: Stem: 931#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 932#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~res1~0#1, main_~res2~0#1;havoc main_#t~nondet6#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 933#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 46340);havoc main_#t~nondet7#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 935#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 928#L36-1 call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 934#multENTRY [2024-11-10 23:16:48,685 INFO L747 eck$LassoCheckResult]: Loop: 934#multENTRY ~n := #in~n;~m := #in~m; 927#L18 assume !(~m < 0); 929#L21 assume !(0 == ~m); 930#L24-2 call #t~ret5 := mult(~n, ~m - 1);< 934#multENTRY [2024-11-10 23:16:48,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:48,685 INFO L85 PathProgramCache]: Analyzing trace with hash 58180684, now seen corresponding path program 2 times [2024-11-10 23:16:48,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:16:48,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660491016] [2024-11-10 23:16:48,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:16:48,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:16:48,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:48,688 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:16:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:48,691 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:16:48,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:48,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1230237, now seen corresponding path program 2 times [2024-11-10 23:16:48,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:16:48,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103040598] [2024-11-10 23:16:48,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:16:48,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:16:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:48,694 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:16:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:48,696 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:16:48,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:48,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1042902120, now seen corresponding path program 2 times [2024-11-10 23:16:48,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:16:48,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666652884] [2024-11-10 23:16:48,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:16:48,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:16:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:48,700 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:16:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:16:48,711 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:16:48,748 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 23:16:48,748 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 23:16:48,748 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 23:16:48,748 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 23:16:48,748 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-10 23:16:48,748 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:48,749 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 23:16:48,749 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 23:16:48,749 INFO L132 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration5_Loop [2024-11-10 23:16:48,749 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 23:16:48,749 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 23:16:48,749 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,752 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,754 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,761 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,767 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,769 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,784 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2024-11-10 23:16:48,810 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-11-10 23:16:48,826 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 23:16:48,827 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-10 23:16:48,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:48,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:48,828 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:48,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-11-10 23:16:48,829 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:16:48,829 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:48,840 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 23:16:48,840 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 23:16:48,850 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-11-10 23:16:48,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:48,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:48,852 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:48,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-11-10 23:16:48,854 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:16:48,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:48,865 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 23:16:48,865 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 23:16:48,875 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2024-11-10 23:16:48,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:48,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:48,876 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:48,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-11-10 23:16:48,877 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:16:48,877 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:48,888 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 23:16:48,888 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret4=0} Honda state: {mult_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-10 23:16:48,898 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2024-11-10 23:16:48,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:48,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:48,899 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:48,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-11-10 23:16:48,900 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 23:16:48,900 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:48,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2024-11-10 23:16:48,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:48,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:48,923 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:48,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-11-10 23:16:48,924 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 23:16:48,924 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 23:16:48,949 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-10 23:16:48,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2024-11-10 23:16:48,953 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 23:16:48,953 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 23:16:48,953 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 23:16:48,953 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 23:16:48,953 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-10 23:16:48,953 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:48,954 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 23:16:48,954 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 23:16:48,954 INFO L132 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration5_Loop [2024-11-10 23:16:48,954 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 23:16:48,954 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 23:16:48,954 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,957 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,960 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,961 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,967 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,969 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:48,970 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 23:16:49,010 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 23:16:49,011 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-10 23:16:49,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:49,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:49,013 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:49,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-11-10 23:16:49,014 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 23:16:49,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:16:49,023 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:16:49,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:16:49,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:16:49,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:16:49,024 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:16:49,024 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:16:49,025 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 23:16:49,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2024-11-10 23:16:49,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:49,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:49,036 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:49,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2024-11-10 23:16:49,038 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 23:16:49,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:16:49,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:16:49,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:16:49,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:16:49,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:16:49,049 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:16:49,049 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:16:49,051 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 23:16:49,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2024-11-10 23:16:49,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:49,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:49,062 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:49,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2024-11-10 23:16:49,063 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 23:16:49,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:16:49,073 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:16:49,073 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:16:49,073 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:16:49,073 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:16:49,073 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:16:49,073 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:16:49,075 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 23:16:49,085 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2024-11-10 23:16:49,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:49,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:49,086 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:49,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2024-11-10 23:16:49,087 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-10 23:16:49,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 23:16:49,097 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 23:16:49,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 23:16:49,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 23:16:49,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 23:16:49,098 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 23:16:49,098 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 23:16:49,100 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-10 23:16:49,102 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-10 23:16:49,102 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-10 23:16:49,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:16:49,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:16:49,104 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:16:49,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2024-11-10 23:16:49,105 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-10 23:16:49,105 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-10 23:16:49,106 INFO L474 LassoAnalysis]: Proved termination. [2024-11-10 23:16:49,106 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = 1*mult_#in~m Supporting invariants [] [2024-11-10 23:16:49,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2024-11-10 23:16:49,116 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-10 23:16:49,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:16:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:16:49,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 23:16:49,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 23:16:49,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:16:49,162 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 23:16:49,162 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 23:16:49,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:16:49,195 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2024-11-10 23:16:49,195 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 9 transitions. cyclomatic complexity: 1 Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 23:16:49,237 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 9 transitions. cyclomatic complexity: 1. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19 states and 19 transitions. Complement of second has 15 states. [2024-11-10 23:16:49,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-10 23:16:49,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 23:16:49,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9 transitions. [2024-11-10 23:16:49,238 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2024-11-10 23:16:49,238 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:16:49,238 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2024-11-10 23:16:49,239 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:16:49,239 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 5 letters. Loop has 8 letters. [2024-11-10 23:16:49,239 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 23:16:49,239 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 19 transitions. [2024-11-10 23:16:49,240 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-10 23:16:49,240 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2024-11-10 23:16:49,240 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-10 23:16:49,240 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-10 23:16:49,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-10 23:16:49,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 23:16:49,240 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 23:16:49,240 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 23:16:49,240 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 23:16:49,240 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-10 23:16:49,240 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-10 23:16:49,240 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-10 23:16:49,240 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-10 23:16:49,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 11:16:49 BoogieIcfgContainer [2024-11-10 23:16:49,246 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-10 23:16:49,247 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 23:16:49,247 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 23:16:49,247 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 23:16:49,247 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:16:45" (3/4) ... [2024-11-10 23:16:49,249 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-10 23:16:49,250 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 23:16:49,250 INFO L158 Benchmark]: Toolchain (without parser) took 4825.40ms. Allocated memory was 163.6MB in the beginning and 211.8MB in the end (delta: 48.2MB). Free memory was 94.4MB in the beginning and 147.3MB in the end (delta: -53.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 23:16:49,251 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 70.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 23:16:49,251 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.64ms. Allocated memory is still 163.6MB. Free memory was 94.1MB in the beginning and 132.8MB in the end (delta: -38.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-10 23:16:49,251 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.04ms. Allocated memory is still 163.6MB. Free memory was 132.8MB in the beginning and 131.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 23:16:49,251 INFO L158 Benchmark]: Boogie Preprocessor took 25.78ms. Allocated memory is still 163.6MB. Free memory was 130.9MB in the beginning and 129.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 23:16:49,251 INFO L158 Benchmark]: IcfgBuilder took 292.49ms. Allocated memory is still 163.6MB. Free memory was 129.5MB in the beginning and 118.4MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-10 23:16:49,251 INFO L158 Benchmark]: BuchiAutomizer took 4210.76ms. Allocated memory was 163.6MB in the beginning and 211.8MB in the end (delta: 48.2MB). Free memory was 118.4MB in the beginning and 148.4MB in the end (delta: -30.0MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2024-11-10 23:16:49,252 INFO L158 Benchmark]: Witness Printer took 3.20ms. Allocated memory is still 211.8MB. Free memory is still 147.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 23:16:49,253 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 70.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 262.64ms. Allocated memory is still 163.6MB. Free memory was 94.1MB in the beginning and 132.8MB in the end (delta: -38.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.04ms. Allocated memory is still 163.6MB. Free memory was 132.8MB in the beginning and 131.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.78ms. Allocated memory is still 163.6MB. Free memory was 130.9MB in the beginning and 129.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 292.49ms. Allocated memory is still 163.6MB. Free memory was 129.5MB in the beginning and 118.4MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 4210.76ms. Allocated memory was 163.6MB in the beginning and 211.8MB in the end (delta: 48.2MB). Free memory was 118.4MB in the beginning and 148.4MB in the end (delta: -30.0MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * Witness Printer took 3.20ms. Allocated memory is still 211.8MB. Free memory is still 147.3MB. 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 8 terminating modules (3 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function ((long long) -1 * \old(m)) and consists of 5 locations. One deterministic module has affine ranking function ((long long) -1 * \old(m)) and consists of 6 locations. One deterministic module has affine ranking function ((long long) -1 * \old(m)) and consists of 5 locations. One deterministic module has affine ranking function \old(m) and consists of 6 locations. One deterministic module has affine ranking function \old(m) and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 55 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 [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 141 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 132 mSDsluCounter, 260 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 126 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 166 IncrementalHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 134 mSDtfsCounter, 166 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT3 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp79 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq162 hnf94 smp86 dnf100 smp100 tf113 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 17 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-10 23:16:49,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2024-11-10 23:16:49,471 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